HP (Hewlett-Packard) 6120 manual

Augu st 2009 Pr oCurve Ser i es 6 1 20 S w i tc hes Adv anced T r affi c M anagem ent Guide[...]

Hewle tt-Pa ckard Comp any 8000 Fo othills Bou levard, m/s 5 551 Roseville, Ca lifornia 95747-5 551 www.procurve.co m © Co pyrigh t 2009 Hewlet t-Pack ard Dev elopm ent Co mpany , L.P . The inform ation co ntained he rein is su bject to ch ange with- out notice. All Rights Re serve d. This document c ontains proprieta ry information, which is prot[...]

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iii Contents Product Documentation About Your Switch Manual Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Printed Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Electronic Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Software [...]

iv Intro ducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 General VLAN Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Types of Static VLANs A vailable in the Switch . . . . . . . . . . . . . . . . . . . 2-5 Port-Based VLANs . . . . . . . . . . .[...]

v Deleting the Management VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53 Operatin g Notes for Man agement VLANs . . . . . . . . . . . . . . . . . . . 2-53 Voice VLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-54 Operatin g Rules for Voice VLANs . . . . . . . . . . . . . . . . . . . [...]

vi 4 Multiple Instance Span ning-Tree Opera tion Conten ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 802.1s Multi ple Spanning Tree Prot ocol (MSTP) . . . . . . [...]

vii Displaying the MSTP Configurat ion . . . . . . . . . . . . . . . . . . . . . . . 4-54 Troublesh ooting an M STP Configura tion . . . . . . . . . . . . . . . . . . . . . . 4-58 Displa ying the Ch ange Hist ory of Ro ot Brid ges . . . . . . . . . . . . . . . . . 4-58 Displaying De bug Counte rs for All MST Inst ances . . . . . . . . . . . . . . .[...]

viii QoS Source-Port Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27 Assigning a Priority Based on Source-Port . . . . . . . . . . . . . . . . . . 5-27 Assigning a DSCP Policy Ba sed on the Source-Port . . . . . . . . . . 5-29 Differe ntiated S ervices C odepoint (DSCP) M apping . . . . . . . . . . . 5-33 Defau[...]

ix Product Documentation About Y our Sw itch Manual Set Note For the latest version of switch doc umen tation, please visit any of the foll ow- ing web sites: www .procur ve.com /manual s www.hp.com/go/ bladesy stem/d ocument ation h18004 .www1.hp .com/p roducts/ blade s/compo nents/c -class-te ch-insta lling. html Printed Publicati ons The publica[...]

x Software Feature Index This feature ind ex indica tes which manu al to consu lt for informa tion on a given s oftw are fea ture. Note Th is Index doe s not cover IPv6 capable soft ware features. Fo r informati on on IPv6 proto col operations a nd featur es (such as DHC Pv6, DNS for IPv 6, and Ping6), refer to the IPv6 Config uratio n Guid e . Int[...]

xi Downloading Software X Event Log X Facto ry Default Settings X Flow Contro l (802.3x ) X File T ransfers X Frien dly Port Names X GVRP X Identi ty-Driven M anagem ent (IDM) X IGMP X Inter face A ccess (T elne t, Co nsole /Ser ial, Web) X IP Addr essing X Jumb o Packets X LACP X LLDP X LLDP-MED X Loop Pr otect ion X MAC Ad dress Mana gement X MAC[...]

xii Port Monitorin g X Port Security X Port Stat us X Port T r unkin g (L ACP) X Port-Based Ac cess Contro l (802.1X) X Prot ocol V LAN S X Quali ty of Serv ice (QoS) X RADIUS Auth enticatio n and Account ing X RADIU S-Bas ed Con figurat ion X RMON 1,2, 3,9 X Secu re Copy X SFTP X SNMPv 3 X Soft ware Down loads (S CP/SFT P , TFPT , Xmod em) X Sourc[...]

xiii VLAN s X W eb Authenti cation RADI US Support X W e b-base d Authe ntic ation X We b U I X Intelligent Edge Software Features Manual Manage ment and Configura tion Adva nced T raffic Manage ment Multicas t and Routing Access Securit y Guide[...]

1-1 1 Getting St arted Contents Intro ducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Convent ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Command Syntax Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

1-1 1 Getting St arted Contents Intro ducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Convent ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Command Syntax Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

1-2 Getting Started Intr oduc tion Introduction This guide is inten ded for use with the HP P roCurve 6120 G/XG and 61 20GX switches. It descri bes how to use th e command lin e interface (CLI), Menu interfac e, and web browser t o configure, manage, mon itor , and troublesh oot switch op era - tion. For an over view of prod uct doc umentatio n for[...]

1-3 Getting Sta rted Conve ntion s Command Prompts In the de fault config uration, yo ur switch disp lays a CLI prompt si milar to the follo wing examp les: ProCurve 6120G/XG Blade Switch# ProCurve 6120XG Blade Switch# T o simp lify recogniti on, this guide uses P roCur ve to r epresen t command prompts. For e xample: ProCurve# (Y ou can use the ho[...]

1-4 Getting Started Source s for More Info rmation Sources for More Information For in formation about swit ch operat ion and f eatures not cover ed in t his guide , consult the following sou rces: ■ Feature Inde x—For i nform ation o n wh ich m anual t o consul t fo r a g iven softwar e feature, ref er to the “S oftware Feat ure Index” on [...]

1-5 Getting Sta rted Source s for More I nformation • file transfe rs, switch monitorin g, troubleshoo ting, and MAC a ddress manage ment ■ Advanced T raffic Management Guide —Use t his guide for info rmation on topics such as: • VLANs: Stat ic port-base d and protoc ol VLANs, and dy namic GVRP VLANs • spann ing-T ree: 802.1D ( STP), 80 2[...]

1-6 Getting Started Source s for More Info rmation Getting Documentation From the W e b T o obtai n the latest versions of documen tation and r elease not es for your switch, go to any of th e following we b sites: www .procur ve.com /manual s www.hp.com/go/ bladesy stem/d ocument ation h18004 .www1.hp .com/p roducts/ blade s/compo nents/c -class-t[...]

1-8 Getting Started Need Only a Quick St art? Figure 1-5. Button for Onboard Administrator I nterface On line Help Need Only a Quick Start? IP Addressing If you j ust want to give the switch an IP address so t hat it can com municate on your net work, or if you are not using VLANs, ProCurv e recommend s that you use the Switch Setup scre en to quic[...]

1-9 Getting Sta rted To Set U p and Inst all the Swit ch in Your Netwo rk ■ Instructions for physically installin g the switch in your netwo rk ■ Quickl y as sign ing an IP addr ess a nd subnet mask, set a Manager pass- word, and (optiona lly) conf igure othe r basic fea tures. ■ Inte rpret ing LED beha vior . For th e lates t versio n of the[...]

2-1 2 Static V irtual LANs (VLANs) Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Intro ducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 General VLAN Operation . . . . . . . . . . . . . . . . . . . . . . .[...]

2-2 Sta tic Vi rt ual LA Ns ( VLANs ) Conte nts 802.1Q VLAN Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40 Spec ial V LAN Type s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45 VLAN Support and the Default VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

2-3 Static Vi rtual LANs (VL ANs) Overvi ew Overview This ch apter de scribes how t o conf igure and u se static , port-base d and protocol-ba sed VLA Ns on the swit ches co vered in this g uide. For ge neral i nformation on how to use th e switch’ s bui lt-in inte rfaces, r efer to these chap ters in th e Management and Confi guration Guide for [...]

2-4 Sta tic Vi rt ual LA Ns ( VLANs ) Intr oduc tion Introduction VLAN Featu res VLANs enable y ou to group users by logical fun ction instead of physical location. This he lps to contro l bandwidth usage within your ne twork by allowing you to gr oup high-ba ndwidth use rs on low-t raffic segme nts and to organi ze users from diff erent LAN se gme[...]

2-5 Static Vi rtual LANs (VL ANs) Intr oduc tion T ypes of Static VLANs A vailable in the Switch Port-Based VLANs This type of stat ic VLAN creates a spec ific laye r -2 br oadcast dom ain co m- prise d of member ports that b ridge IPv4 t raffic amon g themselves. Port-Based VLAN tra ffic is rou table on the sw itches cov ered in this guide. Protoc[...]

2-6 Sta tic Vi rt ual LA Ns ( VLANs ) Termin olog y Note In a multiple- VLAN envir onment that i ncludes some older switch models there may be pr oblems rel ated to the sa me MAC a ddress appe aring on different ports and VLANs on the same switch. In such cases the solu tion is to impose some cablin g and VLAN rest rictions. For mor e on this topic[...]

2-7 Static Vi rtual LANs (VL ANs) Static VLAN Ope ration Static VLAN Operation A group of n etwork ed port s assigned to a V LAN fo rm a broadca st dom ain tha t is separ ate from ot her VLANs that m ay be configu red on the swi tch. On a give n switch, packe ts are b ridged be tween so urce an d destina tion port s that bel ong to the same V LAN. [...]

2-8 Sta tic Vi rt ual LA Ns ( VLANs ) Static VLAN Ope ration VLAN Environ ments Y ou ca n config ure diff erent VLAN t ypes in any combina tion. Note that the default VLAN w ill alw ays be presen t. (For mor e on t he defa ult VLAN, refer to “VLAN Su pport and th e Defaul t VLAN” on pa ge 2-45 .) T able 2-2. VLAN Environments T agg ed VLAN Memb[...]

2-9 Static Vi rtual LANs (VL ANs) Static VLAN Ope ration VLAN Operation The D efa ult VLAN . In figure 2-1 , all ports belong to the defaul t VLAN, and device s co nnecte d to the se po rts ar e in the same b roadca st doma in. E xcept for an IP address and subnet, no confi guration steps are ne eded. Figure 2-1. Example of a Sw itch in th e Defaul[...]

2-10 Sta tic Vi rt ual LA Ns ( VLANs ) Static VLAN Ope ration Prot ocol VL AN Envir onment . Figu re 2- 2 can a lso be appl ied to a pro toco l VLAN env ironm ent. In this case, VLANs “ W” and “X ” repres ent ro utab le protocol VL ANs. VLANs “Y” and “Z” can be an y protocol V LAN. As noted f or the di scussion of multip le po rt-ba[...]

2-11 Static Vi rtual LANs (VL ANs) Static VLAN Ope ration Figure 2-4. Example of Connectin g Multiple VLANs Thro ugh the Same Link Introduci ng T agged VLAN T echnology into Networks Running Leg acy (Untagged ) VLANs. Y ou can in troduce 802.1Q- compli ant device s into net- works that have built unta gged VLANs ba sed on earlie r VLAN tech nology [...]

2-12 Sta tic Vi rt ual LA Ns ( VLANs ) Static VLAN Ope ration ■ “CLI: Con figur ing VLA N Paramet ers” ( page 2-2 1) ■ “W eb: Vi ewing and Co nfiguring VL AN Paramete rs” (page 2-39) ■ “VLAN T agging Inform ation” (p age 2-40) ■ “Effect of VLANs on Other Switch Features” (page 2-5 5) ■ “VLAN R estrictions” ( page 2-57 [...]

2-13 Static Vi rtual LANs (VL ANs) VLAN Operat ing Rules VLAN Operating Rules ■ DHCP/Boot p: If you are using DH CP/Bootp to a cquire the switch’ s configura tion, packe t time-to-li ve, and T im eP informat ion, you must des- ignate the VLA N on which DHCP is config ured for th is purpose as the Prim ary V LAN. (In t he f actor y-def ault c on[...]

2-14 Sta tic Vi rt ual LA Ns ( VLANs ) VL AN Ope rati ng Rule s proto col VLAN tha t does no t already i nclude the AR P VLAN prot ocol, the switch displays this message: ■ Deleting Static VLANs: On the switche s covered in th is guide you ca n delet e a VLAN re gardless of whether t here are cu rrently any ports belong- ing t o that VLAN. (The p[...]

2-15 Static Vi rtual LANs (VL ANs) VLAN Operat ing Rules Figure 2-7. Untagged VLAN Opera tion ■ T agged P acket Forwar ding: I f a port i s a tagged m ember of the sam e VLAN as an in bound, ta gged pack et re ceived on that por t, then the switch forwards the packet to an out bound port on that VL AN. (T o enable the forwardi ng of tagg ed pack [...]

2-16 Sta tic Vi rt ual LA Ns ( VLANs ) Gener al Step s for Usin g VLANs tagged member mu st have the same VID as that carried by the inb ound, tagged packets gener ated on t hat VLAN.) Figure 2-8. T agged VLAN Operation See al so “Multipl e VLAN Con siderati ons” on pa ge 2-17. General Steps for Using VLANs 1. Plan your VLA N strateg y and crea[...]

2-17 Static Vi rtual LANs (VL ANs) Multipl e VLAN Considera tions Multiple VL AN Considerati ons Switch es u se a forw arding database t o maintain aw areness of which e xternal devi ces ar e loca ted on whic h VLA Ns. S ome sw itch es, su ch as the sw itche s covered in this guide, have a multiple f orwarding database , which means the switch allo[...]

2-18 Sta tic Vi rt ual LA Ns ( VLANs ) Multip le VLA N Conside rations drops the pac ket. This is not a probl em for a swit ch with a mul tiple for warding database b ecause the switch allows multiple i nstances of a given MAC address; one f or each valid de stination. How ever , a switch with a single forwardi ng databa se allow s only one instanc[...]

2-19 Static Vi rtual LANs (VL ANs) Multipl e VLAN Considera tions Example of an Unsupported Configuration and How T o Correct It The Problem. In figur e 2-9, the MAC a ddress table for Switch 6600 w ill sometimes record the switch as accessed on po rt A1 ( VLAN 1) , and o ther ti mes as accessed on port B1 (VLAN 2) : Figure 2-9. Example of Invalid [...]

2-20 Sta tic Vi rt ual LA Ns ( VLANs ) Multip le VLA N Conside rations reason , the 6600 d iscards some packets d irected throu gh it for t he 6120 switch, resu lting in p oor perfor mance a nd the appear ance of an interm it- ten t or brok en lin k. The Solution. T o av oid the preced ing pro blem, use onl y one c able o r port trunk betw een the [...]

2-21 Static Vi rtual LANs (VL ANs) Config uring VLAN s Figure 2-11. Example of a V alid T opology for Devices Havi ng Multiple Forwa rding Databases in a Multiple VLAN Environment Configuring VLANs Menu: Configuring Port-Based VLA N Parameters The Me nu interfac e enables yo u to confi gure and view port-ba sed VLANs. Note The M enu interfa ce conf[...]

2-22 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs T o Change VLAN Supp ort Settings This section describes: ■ Changin g the maxim um number o f VLANs to supp ort ■ Chang ing the P rimary VLAN selection (See “C hanging th e Primary VLAN” on pa ge 2-34.) ■ Enablin g or disabl ing dynamic VL ANs (Refe r to chapter 3, “GVRP” .) [...]

2-23 Static Vi rtual LANs (VL ANs) Config uring VLAN s If you changed t he value fo r Maximum V LANs to supp ort , you will see an ast erisk next to the VLAN Support option (see below) . Figure 2-13. VLAN Menu Scr een Indicat ing the N eed T o Re boot the S witch • If you change d the V LAN Supp ort opt ion, you mu st reboot the swit ch before th[...]

2-24 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs Figure 2-14. The Default VLAN Names Screen 2. Press [A] (for Add ). Y ou will then be promp ted for a new V LAN name and VLAN ID: 802.1Q VLAN ID : 1 Name : _ 3. T ype i n a VID (VLAN ID num ber). This ca n be any nu mber from 2 to 40 94 that is n ot alre ady being used by anothe r VLAN. (T[...]

2-25 Static Vi rtual LANs (VL ANs) Config uring VLAN s Figure 2-15. Example of VLAN Names Sc reen with a New VLAN Adde d 6. Repeat steps 2 throu gh 5 to add more VLANs. Rememb er tha t you c an add VLAN s until y ou re ach the n umber speci fied in the Maximum VLANs to supp ort field on the VLA N Support sc reen (s ee figure 2-12 on page 2-22 ). Th[...]

2-26 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs Figure 2-16. Example of the Port-Base d VLAN Port A ssignment Screen in the Menu Interface 2. T o chan ge a po rt’ s VLAN assig nment (s): a. Press [E] (for Edit ). b. Us e th e ar row key s to s ele ct a V LAN ass ign ment you wa nt to chan ge. c. P ress the Sp ace bar to make y our as [...]

2-27 Static Vi rtual LANs (VL ANs) Config uring VLAN s Figure 2-17. Exam ple of Port-Based VLAN Assignments for Specific Po rts For inf ormation o n VLAN t ags (“Untagg ed” and “ T agged ”), refer to “802.1Q VLAN T agging” o n page 2- 40. d. If you ar e finished assigning po rts to VLANs, press [Enter] and th en [S] (for Save ) to activ[...]

2-28 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs Displaying th e Switch’ s VLAN Config uration. The show vlans command list s the V LAN s curr entl y ru nning in th e swit ch, w ith V ID, VLAN n ame, and VLAN status. Dyna mic VLANs app ear only if the sw itch is runni ng with GVRP enable d and one or more po rts has dynam ically join e[...]

2-29 Static Vi rtual LANs (VL ANs) Config uring VLAN s For ex ample: Figure 2-18. Example of “Show VLAN” Listing (GVRP Enabled) Displaying the VLAN Membership of One or More Ports. This comman d shows to whic h VLAN a port belongs. Status: Port-Based : Port-Based, static VLAN Proto col: Protocol-Based, static VLAN Dynamic: Port-Based, temporary[...]

2-30 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs Figure 2 -19 is an example of the output when the detail option is not use d. Figure 2-19. Example of “Show VLAN Ports” Cumula tive Listing Descriptions of items displayed by the command are provided bel ow. Port name: The user -specified port name, i f one has been assigned. VLAN ID: [...]

2-31 Static Vi rtual LANs (VL ANs) Config uring VLAN s Figure 2 -20 is an example of the output when the detail option is use d. Figure 2-20. Example of “Show VLAN Ports” Detail Listing ProCurve# show vlan ports a1-a4 detail Status and Counters - VLAN Information - for ports A1 Port name: Voice_Port VLAN ID Name | Status Voice Jumbo Mode ------[...]

2-32 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs Displaying t he Configurati on for a Par ticular VLA N . This comma nd uses the VID to identify and di splay the da ta for a specific static or dynamic VLAN. Syntax : show vlans < vlan-id > 802.1Q VLAN ID: The VLAN identification number , or VID. R efer to “T erminolog y” on page[...]

2-33 Static Vi rtual LANs (VL ANs) Config uring VLAN s Figure 2-21. Example of “Show VLAN” for a Specific Static VLAN Figure 2-22. Example of “Sh ow VLAN” for a Specific Dyn amic VLAN Changing t he Number of V LANs Allowe d on the Swit ch. In the de fault VLAN con figuration, t he switch al lows a maxi mum of 25 6 VLANs. Y ou can specify a [...]

2-34 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs For exam ple, to reco nfigure the switch to al low 10 VLANs: Figure 2-23. Example of Command Se quence for Chang ing the Number of VLAN s Changing the Pr imary VLAN. In the def ault V LAN conf iguration , the port- based def ault VLA N ( DEF AUL T_VLAN ) is the Pri mary VLAN. Howev er , yo[...]

2-35 Static Vi rtual LANs (VL ANs) Config uring VLAN s Creat ing a N ew Stati c VLAN ( Port-B ased or Prot ocol- Based) Changin g the VLAN Co ntext Leve l. The vlan < vid > comma nd operates in the gl obal confi gurat ion context t o either configur e a stati c VLAN and/ or take the C LI to the s pec ified VLAN ’ s conte xt. Syntax : vlan &[...]

2-36 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs For exam ple, to c reate a new , port- based, st atic VLAN with a VID of 100: Figure 2-25. Example of Creat ing a New , Port-Based , Static VLAN T o go to a different VLAN co ntext level, such as to the de fault VLAN: ProCurve(vlan-100)# vlan default_vlan ProCurve(vlan-1) _ Deleting a VLAN[...]

2-37 Static Vi rtual LANs (VL ANs) Config uring VLAN s Converting a Dynamic VLAN to a Static VLAN. Use t his featur e if you want to convert a d ynamic, port -based VLAN membership to a static, po rt- based VLAN membership. This is necessary if you want to make the VLAN permane nt on the sw itch. For ex ample, suppose a dynamic VLAN wit h a VID of [...]

2-38 Sta tic Vi rt ual LA Ns ( VLANs ) Confi gur ing VL ANs For examp le, suppose you have a VLAN name d VLAN1 00 with a VI D of 100, and all por ts are set t o No for this VL AN. T o change t he VLAN nam e to “ Blue_T eam ” and set ports A1 - A5 to T agged , you would u se these comman ds: ProCurve(config)# vlan 100 name Blue_Team ProCurve(con[...]

2-39 Static Vi rtual LANs (VL ANs) Config uring VLAN s W eb: V iewing and Configurin g VLAN Parameters In the we b browser interface you c an do the fo llowing: ■ Add VLA Ns ■ Rename VLANs ■ Remove VLA Ns ■ Config ure VLAN taggin g mode per -p ort ■ Config ure GVRP mo de ■ Sele ct a new Prim ary V LAN T o conf igure othe r static VL AN [...]

2-40 Sta tic Vi rt ual LA Ns ( VLANs ) 802.1Q VL AN T aggin g 802.1Q VLAN T agging General App lications: ■ The swi tch requ ires VLAN tagging on a gi ven port i f more than one V LAN of the sam e type uses the po rt. When a port belongs to two or more VLANs of the same type, they rem ain as separa te broadc ast domains a nd cannot recei ve traff[...]

2-41 Static Vi rtual LANs (VL ANs) 802.1Q VLAN Taggi ng Figure 2-26. Exampl e of T agged and Unt agged VLAN Port Assign ments ■ In switch X: • VLANs assigned to ports X1 - X6 can a ll be unt agged bec ause there is only one V LAN assignme nt per port. Re d VLAN traf fic will go out only the Red por ts; Green VLA N traffic will go out only the G[...]

2-42 Sta tic Vi rt ual LA Ns ( VLANs ) 802.1Q VL AN T aggin g Note Each 802.1Q-complia nt VLAN must have its own uniqu e VID number , and that VLAN must be g iven the s ame VID in ev ery device i n which it i s config ured. That is, if th e Red VLAN has a VID o f 10 in switch X, then 10 must also be used for the Red VID in sw itch Y . Figure 2-27. [...]

2-43 Static Vi rtual LANs (VL ANs) 802.1Q VLAN Taggi ng ■ If all end nodes on a port c omply with the 802.1Q stan dard and ar e configu red to u se the corr ect VID, th en, you can configur e all VL AN assignments on a port as “T agged” if doing so either makes it e asier to manage y our VL AN assignm ents, or i f the authorize d, inbound tra[...]

2-44 Sta tic Vi rt ual LA Ns ( VLANs ) 802.1Q VL AN T aggin g ■ The VLANs assign ed to ports X4 - X6, Y2 - Y5 can all be untag ged because there is only one VL AN assigned per port. ■ Port X1 has two App leT alk VLA Ns assign ed, which me ans tha t one VLA N assigned t o this port ca n be untagge d and the othe r must be tagged. ■ Ports X2 an[...]

2-45 Static Vi rtual LANs (VL ANs) Speci al VL AN T ypes Special VLAN T ypes VLAN Support and the Default VLAN In the fact ory default co nfigura tion, VLAN support is ena bled and all ports on the switc h belong to the por t-based, defaul t VLAN (named DEF AUL T_VLAN). This places all por ts in the swit ch into one physical broa dcast doma in. In [...]

2-46 Sta tic Vi rt ual LA Ns ( VLANs ) Spec ial VL AN Type s ■ Any p orts no t spe cifi cally assi gned to an other V LAN wi ll re main a ssig ned to the Default VLAN, regar dless of whether it is the Prima ry VLAN. Candidat es for Pri mary VLAN incl ude any stat ic, port-base d VLAN cur rently conf igured on the switc h. (Pro tocol -Based V LANs[...]

2-47 Static Vi rtual LANs (VL ANs) Speci al VL AN T ypes Figure 2-29. Example of Potent ial Security Brea ches In figure 2-30, W orkstation 1 has m anagement acce ss to all three swi tches through t he Manag ement VLAN, wh ile the PCs do n ot. This is bec ause conf ig- uring a switch to recogniz e a Managem ent VLAN au tomatica lly exclu des attemp[...]

2-48 Sta tic Vi rt ual LA Ns ( VLANs ) Spec ial VL AN Type s Figure 2-30. Example of Managem ent VLAN Cont rol in a LAN T able 2-5. VLAN Membership in Figur e 2-30 Preparation 1. D eterm ine a V ID an d VLA N name suitabl e for your Ma nagem ent V LAN. 2. Plan your M anagemen t VLAN topo logy to use ProC urve swit ches that support this f eature. ([...]

2-49 Static Vi rtual LANs (VL ANs) Speci al VL AN T ypes 4. T est t he managem ent VLAN fr om all of the manage ment sta tions autho - rized to use the Managem ent VLAN, i ncluding any SNM P-based n etwork manage ment st atio ns. Ensu re th at you in clude t estin g any Manage ment VLAN links bet ween s witch es. Note If you config ure a Manageme n[...]

2-50 Sta tic Vi rt ual LA Ns ( VLANs ) Spec ial VL AN Type s Using DHCP to Obtain an IP Address Y ou can use DHC P to obtain an IPv4 address for your Mana gement V LAN or a client on tha t VLAN. The follo wing example s illustrate whe n an IP address will be received from the DHCP server . 1. If Blu e_VLAN is configure d as the Ma nagement V LAN an[...]

2-51 Static Vi rtual LANs (VL ANs) Speci al VL AN T ypes 2. I f Red_VL AN is configur ed as t he Manage ment VLA N and t he DHCP serv er is on Blue_VL AN, Blue_VLA N receiv es an IP addr ess but Red_VL AN does not. See fig ure 2-33 . Figure 2-33. Example of DHCP Serve r on Different VLAN from the Manag ement VLAN 3. If no Ma nagemen t VLAN is confi[...]

2-52 Sta tic Vi rt ual LA Ns ( VLANs ) Spec ial VL AN Type s 4. If Re d_VLAN is conf igured as the Managemen t VLAN and the clie nt is on Red_VLAN , but the DHCP ser ver is on Blue_V LAN, the clie nt will not receive an IP address. See figure 2- 35. Figure 2-35. Example of Client on Differ ent Manag ement VL AN from DHCP Server 5. If Blu e_VLAN is [...]

2-53 Static Vi rtual LANs (VL ANs) Speci al VL AN T ypes Deleting the Management VLAN Y ou can di sable the Se cure Mana gement feature w ithout dele ting the V LAN itself. Fo r example , either of t he followin g commands disables th e Secure Managem ent feature i n the above ex ample: ProCurve (config)# no management-vlan 100 ProCurve (config)# n[...]

2-54 Sta tic Vi rt ual LA Ns ( VLANs ) Spec ial VL AN Type s ■ Monito ring Shar ed Resource s: The Manag ement VLA N feature shares intern al switch resou rces with sever al other fe atures. The switc h provides ample reso urces for all fe atures. However , if th e internal reso urces become f ully sub scribed, th e Managemen t VLAN feat ure cann[...]

2-55 Static Vi rtual LANs (VL ANs) Effec t of VLAN s on Other Switch Fe ature s Components of V oice VLAN Operation ■ V oice VLAN(s) : Configure one or mo re voice V LANs on the swit ch. Some reason s for having m ultiple vo ice VLANs inc lude: • Em ployin g tel ephon es wi th dif feren t VLAN requ irem ents • Better con trol of bandwid th us[...]

2-56 Sta tic Vi rt ual LA Ns ( VLANs ) Effec t of V LANs on Ot her S witch Featur es instance op eratio n, physicall y redunda nt links bel onging t o differen t VLANs can rem ain open. Ref er to chapte r 4, “Mul tiple Instanc e Spannin g-T ree Oper - atio n” . Note that S panning T ree operates differ ently in differ ent devices. For examp le,[...]

2-57 Static Vi rtual LANs (VL ANs) VLAN Re strictions monitor port is assign ed, refe r to t he secti on titl ed “VL AN-Relate d Prob lems” in the “T roubleshootin g” app endix of the Management and Configuratio n Guide for your switch. Jumbo Packet Support Jumbo pac ket support is enabled pe r -VLAN and app lies to all ports b elonging to [...]

3-1 3 GVRP Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Intro ducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 General Operati on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

3-2 GVRP Overv iew Overview This chapter descri bes GVRP an d how to conf igure it with the switch’ s built- in interfaces , and assume s an understa nding of VLANs, wh ich are de scribed in chap ter 2, “ Static V irtual L ANs (VLANs)” . For ge neral i nformation on how to use th e switch’ s bui lt-in inte rfaces, r efer to these chap ters [...]

3-3 GVRP Intr oduc tion Introduction GVRP—G ARP VLAN Re gistrati on Protocol —is an applica tion of the Generic Attribut e Registra tion Proto col—GARP . GVRP is defined in the IE EE 802 .1Q standa rd, and GARP i s defined in the IEEE 8 02.1D-1998 sta ndard. Note T o understand a nd use GV RP yo u must ha ve a wor king k nowledge of 802. 1Q V[...]

3-4 GVRP Gener al Op erati on convert it to a stat ic VLAN or al low it to cont inue as a d ynamic VLAN f or as long as needed . Y ou can a lso use GVRP to dy namica lly enabl e port member - ship in static VLANs c onfigured on a switc h. Note: On the switches co vered in this guide , GVRP can b e enabled o nly if max vl ans is set to n o more than[...]

3-5 GVRP Gener al Op erati on Figur e 3-1 . Exam ple of Forw ard ing Adv er tisem ents and D ynami c Jo ining Note th at if a stati c VLAN is co nfigure d on at least one port o f a switch, and that port has est ablished a lin k with a nother device, then al l other p orts of tha t switch will send adverti sements for that VLAN. For exam ple, in th[...]

3-6 GVRP Gener al Op erati on Figure 3-2. Example of GVRP Opera tion Note A port can l earn of a dynamic VLAN throu gh devices th at are no t aware of GVRP (Swit ch “B”, abo ve). VLANs m ust be disabled in GVRP-una ware de vices to allow t agged pack ets to pass t hrough. A GVRP-awar e port receiving adver tisements has these opti ons: ■ If t[...]

3-7 GVRP Per-P ort Op tions f or Hand ling GV RP “Unk nown VL ANs ” ■ Send VL AN adverti sements, and also receive ad vertisements for VLANs on other port s and dyna mically join those V LANs. ■ Send VL AN advert isements, bu t ignore ad vertise ments recei ved from other po rts. ■ A void GVRP par ticipatio n by not sen ding adve rtiseme [...]

3-8 GVRP Per- Port Opt ions fo r Ha ndling GVRP “U nknown VLANs” T able 3-1. Opt ions for Handling “Unk nown VLAN” Advertis ements: The CLI show gvrp command a nd the menu in terface V LAN Sup port screen show a switch’ s current GVRP conf igurati on, inclu ding the U nknown VLA N settings. Figure 3-3. Example of GVRP Unkno wn VLAN Settin[...]

3-9 GVRP Per-Po rt Options for Dynam ic VLAN A dvertis ing and Joining Per -Port Options for Dynamic VLAN Advertising and Joining Initiating Advertisement s. As des cribe d in th e prec eding section , to enable dynamic join s, GVRP must be enabl ed and a port must be c onfigured to Learn (the default) . Howeve r , to sen d adve rtiseme nts in your[...]

3-10 GVRP Per-P ort Options f or Dynamic VLAN Advertisin g and Joinin g T able 3-2. Controlling VLAN Behavior on Ports with Stat ic VLANs Per-Port “Unkno wn VLAN ” (GVRP) Configura tion Stat ic VLAN Options— Per VLAN Specified on Each Port 1 Port Activity : T a gged or U ntagg ed (P er VLA N) 2 Port Activ ity: Auto 2 (Pe r VLAN) Po rt Activit[...]

3-11 GVRP GVRP an d VLAN Ac cess Control As the p receding t able indi cates, when you enable GV RP , a port that has a T agged or Untagge d stati c VLAN ha s the opt ion for b oth gene rating adverti se- ments an d dynamica lly joinin g other VL ANs. Note In table 3-2, above , the Unknow n VLAN para meters are c onfigured o n a per - port basis us[...]

3-12 GVRP Plan ning fo r GV RP Oper atio n ■ Disable GVRP ■ Reboot the switch The time-to-live for dynamic VLANs is 10 seconds. That is, if a port has not recei ved an adve rtis ement for an exis ting dynam ic VLA N duri ng the last 10 seconds, t he port removes i tself from th at dynamic VLAN . Planning for GVRP Operation These step s outline [...]

3-13 GVRP Confi guri ng GVR P On a Sw itch Configuring GVRP On a Switch The procedur es in this sect ion describ e how to: ■ V iew the GVRP configur ation o n a switch ■ Enable and disa ble GVRP on a switch ■ Specify how in dividual p orts will hand le advertisemen ts T o view or configur e static VLANs fo r GVRP oper ation , refer to “P er[...]

3-14 GVRP Confi gur ing GVR P On a Swit ch Figure 3-5. Exam ple Showin g Default Settings fo r Handlin g Advertise ments 3. U se th e arro w keys t o sel ect th e port you w ant, and t he Sp ace ba r to se lect Unknown VLA N option f or any ports y ou want to chang e. 4. Whe n you finish mak ing conf iguration c hanges, press [Enter] , then [S] (f [...]

3-15 GVRP Confi guri ng GVR P On a Sw itch Figure 3-6. Example of “Show GVRP” Listing with GVRP Disabled Figure 3-7. Example of Show GVRP Listin g with GVR P Enabled Enabling an d Disabling G VRP on the Sw itch. This comman d enables GVRP on th e swit ch. Syntax : gvr p This exam ple enables GVRP: ProCurve(config)# gvrp This example disa bles G[...]

3-16 GVRP Confi gur ing GVR P On a Swit ch For exa mple, to ch ange and view the con figu rati on for p orts A1 -A2 to Block : Figure 3-8. Displaying the Static and Dynami c VLANs Active on the S witch For example, in t he following illust ration, swit ch “B” has one static VLAN ( the default VLA N), with GVR P enabled and po rt 1 conf igured t[...]

3-17 GVRP Confi guri ng GVR P On a Sw itch The show vlans comm and lis ts the dynam ic (and s tatic) VL ANs in swi tch “B” after it has learned a nd joined V LAN-100 and VLA N-200. Figure 3-9. Exam ple of Listing Showing Dynamic VLANs Converting a Dynamic VLAN to a Static VLAN. If a p ort on the swi tch has join ed a dynamic VL AN, you can use [...]

3-18 GVRP GVRP O perat ing No tes W eb: V iewing and Configur ing GVRP T o view , enable, disa ble, or reconf igure GVR P: 1. Cli ck on the Confi guration tab. 2. Cli ck on [VLA N Configura tion] and do the followin g: • T o en able o r disable GVRP , click on GVRP En abled . • T o ch ange th e Unkno wn VLAN fie ld for any port: i. Click on [GV[...]

3-19 GVRP GVRP O perat ing N otes ■ Rebootin g a switch on whic h a dynamic VL AN exists delete s that VLAN. Howe ver , the dy namic V LAN re -appe ars af ter th e rebo ot if GVR P is enabled a nd the switch again rece ives adverti sements for that VLAN throug h a port co nfigured t o add dyna mic VLANs. ■ By recei ving adver tisements fr om ot[...]

4-1 4 Multiple I nstance Spa nning -T re e Operation Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 802.1s Multi ple Spanning Tree Prot ocol (MSTP) . . . . . . . . . . . . . . . . 4-6 MSTP Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

4-2 Multipl e Instance Sp anning -Tree Opera tion Conte nts How to Save Your Current Configuration . . . . . . . . . . . . . . . . . . . 4-47 Displaying MS TP Statistics and Co nfiguration . . . . . . . . . . . . . . . . . 4-49 Displaying Global MSTP Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50 Displaying Detaile d Port[...]

4-3 Multi ple Inst ance S pann ing-T ree Oper ation Overvi ew Overview The swit ches covered i n this guide , use the IEE E 802.1s Mu ltiple Spann ing T r ee Protocol ( MSTP) sta ndard. MSTP Fea ture s W ithou t spanning tree , having m ore than one active pa th betwee n a pair of nodes caus es loops in the ne twork, which c an result in dup licati[...]

4-4 Multipl e Instance Sp anning -Tree Opera tion Overv iew Multiple-Instance spanning tree operation (802.1s) en sure s th at only one active pat h exists between any two nodes in a spanning-tr ee instance . A spanning- tree instance c omprises a u nique set of VLANs, a nd belongs to a specific spa nning-tre e region . A r egion ca n compr ise mul[...]

4-5 Multi ple Inst ance S pann ing-T ree Oper ation Overvi ew The logica l and physic al topol ogies resul ting fro m these VLA N/Insta nce group ings result in blo cking on di fferent link s for differ ent VLANs: Figure 4-1. Example of a Multiple Spanni ng-T ree Appli cation Switch “C” Instan ce 1 VLAN s: 10 , 11, 12 Switch “A” Root for In[...]

4-6 Multipl e Instance Sp anning -Tree Opera tion 802. 1s Multipl e Spanning Tree Protoco l (MSTP) 802.1s Multiple Spanning T ree Protocol (MSTP) The 802 .1D and 802.1 w spannin g tree pr otocols op erate with out regard to a network’ s VLAN co nfigurat ion, and maintain o ne common spanning tre e throughout a bridge d network . Thus, these proto[...]

4-7 Multi ple Inst ance S pann ing-T ree Oper ation 802.1s Mul tiple Spa nning Tre e Protocol (MSTP) In a mesh environment, the default MSTP tim er settings ( Hello T ime and Forward Del ay ) are usually ad equate fo r MSTP ope ration. B ecause a packet crossing a mesh may tra verse several lin ks within the mesh, using sma ller - than -def aul t s[...]

4-8 Multipl e Instance Sp anning -Tree Opera tion 802. 1s Multipl e Spanning Tree Protoco l (MSTP) Common and Int ernal Spanning T ree (CIST): T he CIST iden tifies the regions in a network a nd administ ers the CI ST root bridg e for the n etwork, the root br idge for ea ch regio n, and the r oot bridge f or each span ning-tre e instan ce in each [...]

4-9 Multi ple Inst ance S pann ing-T ree Oper ation 802.1s Mul tiple Spa nning Tre e Protocol (MSTP) MSTI must initia lly exist in the IST inst ance of the same MST r egion. When you assig n a static VLAN to an MSTI, the swi tch removes t he VLAN from the IST inst ance. (Thus, yo u can as sign a V LAN to only on e MSTI i n a give n region.) All VLA[...]

4-10 Multipl e Instance Sp anning -Tree Opera tion 802. 1s Multipl e Spanning Tree Protoco l (MSTP) Between regions ther e is a singl e, active spanni ng-tree to pology . How Sepa rate Insta nces Af fect MSTP Op eration. A ssigning dif ferent groups of VLANs to diffe rent instan ce s ensures that those VLAN groups use indep enden t forw ard ing pat[...]

4-11 Multi ple Inst ance S pann ing-T ree Oper ation 802.1s Mul tiple Spa nning Tre e Protocol (MSTP) W ithin a r egion, traff ic routed bet ween VLANs in separate in stances can t ake only on e physical pa th. T o ensure that traff ic in all VLA Ns within a re gion can travel be tween r egions, all o f the bo undar y ports f or each region sho uld[...]

4-12 Multipl e Instance Sp anning -Tree Opera tion 802. 1s Multipl e Spanning Tree Protoco l (MSTP) MSTP Operation with 802.1Q VLAN s As indic ated in the preced ing sections, with in a given MST in stance, a single spanning tree is c onfigur ed for all VLA Ns incl uded in t hat in stance. This me ans that if redun dant physic al links exist in se [...]

4-13 Multi ple Inst ance S pann ing-T ree Oper ation 802.1s Mul tiple Spa nning Tre e Protocol (MSTP) T erminology BPDU — Acron ym for bridge protoc ol da ta uni t. BPDUs are dat a mess ages that a re exch anged betwe en the swi tches with in an ex tended LA N that use a spanning t ree protoc ol topology . BP DU packet s contai n informat ion on [...]

4-14 Multipl e Instance Sp anning -Tree Opera tion 802. 1s Multipl e Spanning Tree Protoco l (MSTP) MSTP BP DU (MSTP Bridge Protocol Data Unit) : These B PDUs carr y region- sp ecif ic info rmatio n, suc h as the regio n ident ifie r (regi on name and revi sion numbe r). If a sw itc h rece ives a n MST P BP DU wit h a regio n i denti fier that diff[...]

4-15 Multi ple Inst ance S pann ing-T ree Oper ation 802.1s Mul tiple Spa nning Tre e Protocol (MSTP) Operating Ru les ■ All switch es in a r egion mu st be conf igured wi th the same set of VLA Ns, as well as the same MST co nfigu ration nam e and MST con figuration number . ■ W ithin a r egion, a V LAN can be al located to ei ther a singl e M[...]

4-16 Multipl e Instance Sp anning -Tree Opera tion 802. 1s Multipl e Spanning Tree Protoco l (MSTP) ■ If a port o n a switch conf igured for MSTP r eceives a lega cy (STP/802.1D or RSTP/8 02.1w) BPDU, it aut omatically op erates as a legacy p ort. In this case, th e MSTP switch intero perates with th e connected S TP or RSTP switch as a separate [...]

4-17 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Note o n Pa th Co st RSTP and M STP impl ement a g reater ra nge of path costs than 802. 1D STP , and use diff erent defa ult path cost values to a ccount for h igher net work speeds. These va lues are sh own bel ow . Because the maximum valu e for the path cost all owed by 802[...]

4-18 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP ■ Plan indi vidual re gions based on VLAN gr oupings. That is, plan on all MSTP switch es in a g iven region support ing the same set of VLANs. Within each r egion, dete rmine the V LAN memb ership for each spanni ng-tree instance . (Each instance r epresen ts a single forw ard[...]

4-19 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP MSTP Configuration Over view This section describes the general st ep s for confi guring MSTP v ia the CLI, assumi ng that yo u have al ready determi ned t he VLANs you want MSTP to use (see “Plannin g an MSTP App lication” o n page 4-1 7). A des cription of each MSTP comm [...]

4-20 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP 3. Configure MST inst ances. • Conf igure one instan ce for ea ch VLAN grou p that yo u want t o operate as an act ive topology within the reg ion to which the switch belo ngs. When you create t he instance, you must include a mi nimum of one VID. Y ou can a dd more VIDs later [...]

4-21 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Configuri ng MSTP Operation Mode and Global Settings The command s in this section apply at the switch (glob al) level. For de tails of how to conf igure sp anning t ree setting s on indiv idual ports, see “Con figuring MSTP Per -Port Parameter s” on page 4-26. MSTP Gl obal[...]

4-22 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Syntax: spannin g-tree con fig-revisio n < revision -number > This command configures the rev ision number you designate for the MST region in which you want the switch to reside. This setting must be the same for all switches residing in the same region. Use this setting t[...]

4-23 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Syntax: spannin g-tree forw ard-delay Sets time the switch waits between transitioning from listening to learning and from learning to forwardin g states. ( Range: 4 - 30; Default: 15 .) Syntax: spannin g-tree legacy- mode Sets spanning-tree prot ocol to operate in 802.1D legac[...]

4-24 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Syntax: spannin g-tree pendi ng < apply | config- name | config-re vision | instance | reset > Manipulates the pending MSTP configuration. The command is useful in test or debug application s, and enab les rapid reconfiguration of the switch for changes in sp anning-tree op[...]

4-25 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Syntax: spannin g-tree pri ority < pr iority-mult iplier > Every switch running an instance of MSTP has a Bridge Identifier , which is a unique identifier that helps distingui sh this switch from all others. The switch with the lowest Bridge Identifier is elected as the r[...]

4-26 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Configuring MSTP Per -Port Parameters In an M STP topo logy , you configu re per -port paramet ers in th e glo bal config - urat ion cont ext. In most ca ses, ProCurve recommen ds that you u se the defa ult setti ngs for these p arameters and a pply chan ges on a per -por t basis[...]

4-27 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Syntax : [no] spanni ng-tree < port-l ist > auto-edge -port Supports the automatic identification of edge ports. The port will look f or BPDUs for 3 seconds; if there are none i t begins forwarding packets. If admi n-edge-port is enabled for a port, t he setting for auto-[...]

4-28 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Syntax : spanning- tree < port-li st > path-cost < a uto | 1..200000000 > Assigns an individual port co st that the switch uses to determine which ports are fo rwarding ports in a given spanning tree. In the default configuration ( auto ) the switch determines a port?[...]

4-29 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Syntax : spanning- tree < port-li st > priority < pri ority-mul tiplier > MSTP uses this parameter to determine the port(s) to us e for forwarding. The port with the lowest priority number has the highest priority for use. The range is 0 to 240, and is configured by[...]

4-30 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Configuring BPDU Filtering The STP BPDU filt er feat ure allo ws co ntrol of spanning -tree p articipat ion on a per -port b asis. It can be use d to exclude specif ic ports f rom becom ing pa rt of spanning tre e operations. A p ort with the BP DU filter enabled w ill ignore inc[...]

4-31 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP For exam ple, to c onfigure BPDU filtering o n port a9, ente r: ProCurve(config)# spanning-tree a9 bpdu-filter V iewing BPDU Filtering . The spanning-t ree show <p o r t > c onfiguration command d isplays the BPD U’ s fi lter state. Figure 4-5. Example of BPDU Filter in[...]

4-32 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Figure 4-7. Exampl e of BPDU P rotection Enabled at the Netwo rk Edge The fo llowing comm ands al low you to con figu re BPD U prot ection . Caut ion This co mmand should only be us ed to guard edg e ports that are n ot expecte d to participate in STP op erations. Once BP DU prot[...]

4-33 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Example. T o configur e BPDU pro tection on port s 1 to 10 with SNMP traps enab led, e nte r: ProCurve(config)# spanning-tree 1-10 bpdu protection ProCurve(config)# spanning-tree trap errant-bpdu The following steps will then be set in process: 1. When an STP BPDU pack et is re[...]

4-34 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP BPDU protec ted ports ar e display ed as separat e entries of the spa nning tree categ ory w ithin the c onfig urati on fil e. Figure 4-9. Example of BPDU Filters in the Show Configuration Command ProCurve(config)# show configurat ion . . . spanning-tree spanning-tree A1 bpdu-pro[...]

4-35 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Configuri ng MST Instance Para meters When you enable MSTP o n the switch , a spanning tr ee instance i s enabled automa tically . T he switch supports up to sixte en config urable MST inst ances for ea ch VLAN group t hat you wa nt to opera te as an active topology within the [...]

4-36 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Syntax: [no] sp anning-tre e instance < 1..16 > vlan < vid [ vid.. vid ] > no span ning-tree instance < 1..16 > — Con tinued — Note: The valid VLAN ID s that you can map to a specified MSTI are from 1 to 4094. The VLAN ID-to-MSTI mapping does not require a V[...]

4-37 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Configuring MST Inst ance Per -Port Parameters Command Page spannin g-tr ee inst ance < 1..16 > < por t-lis t > path -cost < auto | 1..200000 000 > 4-37 spannin g-tr ee inst ance < 1. .16 > < port- list > pri ority < priori ty-multiplier >4 -[...]

4-38 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Syntax: spanning -tree insta nce < 1..16 >< port-li st > prio rity < priority-multip lier > This command sets the priority for the specified port(s) in the specified MST instance. (For a given port, the priority setting can be different for different MST instanc[...]

4-39 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP Syntax: spannin g-tree < p ort-list > priori ty < pr iori ty-m ul tipli er > This command sets the priority for the specified port(s) for the IST (that is, Instance 0) of the reg ion in which the switch resides. The “priority” component of t he port’ s “Port[...]

4-40 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Enabl ing or Dis abling S panning T ree Ope ration This c omman d enab le s or disa bles spann ing tr ee op erat ion fo r any span ning tree p rotocol enab led on the swi tch. Befo re using thi s comman d to enable spanning tree, ensure th at the versio n you want to use is acti [...]

4-41 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP T o Creat e a Pending MSTP C onfiguration. This procedur e creates a pending M STP c onfigura tion an d exchan ges it with the activ e MSTP configu - ration : 1. Co nfigure th e VLANs y ou want incl uded in any instances in t he new region . When you execute th e pending com ma[...]

4-42 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP 7. T o re view your pen ding conf igurati on, use the show sp anning-tr ee pending comma nd (see p age 4-57). 8. T o exch ange the cu rrent ly ac tive MST P conf igura tion wit h the pendin g MSTP conf igurat ion, use t he spanning- tree pending apply command. MSTP VLAN Configura[...]

4-43 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP ■ Flexibility: By preconfigurin g identical VLAN ID -to-MSTI mappi ngs on all switch es in an MST re gion, you c an combine sw itches that su pport differen t maximum numbe rs of VLANs. ■ Network stab ility: Y ou can re duce the inte rruption s in network conn ec- tivity ca[...]

4-44 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Configurin g MSTP Instances with the VLAN Range Opti on For the swit ches covered in this guide, if you use the spanning-tree instance comman d with the VLAN ran ge option, ev en if the range in cludes VLANs th at are no t currentl y present on the switch, t he entire r ange of V[...]

4-45 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP On other ProCur ve switches, only the VLAN s that are prese nt will be included, that is, only VLANs 1, 5, and 7 would be included. The switch will map the se VLANs to M STP Instance 1, wh ich results in a Configurat ion Digest tha t is not the same as t he Conf iguration Dig e[...]

4-46 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Operating Notes for the VLAN Conf iguration Enhancement ■ Configurin g MSTP on the switch a utomatically conf igures the Intern al Spann ing T ree (IST) in stance and p laces all sta tically and dynamically configured VLAN s on the switch into t he IST instance. The spa nning-t[...]

4-47 Multi ple Inst ance S pann ing-T ree Oper ation Confi gurin g MSTP How to Save Y our Current Co nfiguration Y ou can sav e your curre nt conf iguration be fore up dating to a new vers ion of software by following these steps: 1. Enter the show config files command to display your current configura- tion f iles, as show n in Figure 4- 12. Figur[...]

4-48 Multipl e Instance Sp anning -Tree Opera tion Confi gurin g MSTP Figure 4-14. Show Flash Comman d after Upgr ading the Swit ch to a New V ersion of the Software (Z .12.51) 5. If you want to run the prior software version, Z.12.43 in this example, enter this command: ProCurve(config)# boot system flash secondary c onfig configK1243.cfg After re[...]

4-49 Multi ple Inst ance S pann ing-T ree Oper ation Dis playing MS TP Statist ics and Confi guratio n Displaying MSTP Statistics and Configuration SNMP MI B Suppor t for M STP . MSTP is a sup erset of the STP/8 02.1D and RSTP/8 02.1w prot ocols and u ses the MIB objects d efined for these two protocols. Command Pa ge MSTP St atist ics: show spanni[...]

4-50 Multipl e Instance Sp anning -Tree Opera tion Displ aying MSTP Statistics an d Configu ration Displayi ng Global MSTP Status The foll owing comma nds display the MSTP statist ics for the c onnections between MST regions in a ne twork . Syntax: show spann ing-tree This command display s the switch’ s global and regional spanning-tree status, [...]

4-51 Multi ple Inst ance S pann ing-T ree Oper ation Dis playing MS TP Statist ics and Confi guratio n Figure 4-15. Example of Com mon Spanning T ree Status ProCurve(config)# show spa nning-tree Multiple Spanning Tree (MST) Information STP Enabled : Yes Force Version : MSTP-operation IST Mapped VLANs : 1,66 Switch MAC Address : 000 4ea-5e2000 Switc[...]

4-52 Multipl e Instance Sp anning -Tree Opera tion Displ aying MSTP Statistics an d Configu ration Displaying Detailed Port Information The foll owing comma nds display t he MSTP statist ics for th e connection s between MST regions in a ne twork . . Figure 4-16. Exampl e of CST Port Informa tion using Show Spa nning T ree Detail Com mand Note This[...]

4-53 Multi ple Inst ance S pann ing-T ree Oper ation Dis playing MS TP Statist ics and Confi guratio n Displaying Status for a Speci fic MST Instance The foll owing comma nds display t he MSTP statist ics for a sp ecified MS T instance . Figure 4-17. Example of MST P Statistics for a Sp ecific Instan ce on an MSTP Switch Syntax: show spannin g-tree[...]

4-54 Multipl e Instance Sp anning -Tree Opera tion Displ aying MSTP Statistics an d Configu ration Displaying the MSTP Configuratio n Displaying th e Global MSTP Configura tion. Th is command disp lays the switch’ s basic an d MST region spannin g-tree co nfigura tion, includ ing basic port connec tivity setting s. Figure 4-18. Example of Displ a[...]

4-55 Multi ple Inst ance S pann ing-T ree Oper ation Dis playing MS TP Statist ics and Confi guratio n Displaying Per -Instance MSTP Configurati ons. T hese comm ands di s- plays th e per -instance por t configur ation and cu rrent state, along with instance ident ifiers and r egional root data. Figure 4-19. Example o f the C onfiguration Listing f[...]

4-56 Multipl e Instance Sp anning -Tree Opera tion Displ aying MSTP Statistics an d Configu ration Displaying th e Region-Level Configuration in B rief. This comm and output is usef ul for quick ly ve rifyi ng the a llocati on of VLANs in the s witch ’ s MSTP conf igurat ion an d for viewin g the configu red reg ion iden tifiers. Figure 4-20. Exa[...]

4-57 Multi ple Inst ance S pann ing-T ree Oper ation Dis playing MS TP Statist ics and Confi guratio n Displaying th e Pending MSTP Configuratio n. This comm and disp lays the MSTP configuration t he switch will impleme nt if you execute the span- ning -tree pe nding a pply co mmand ( Refer to “ Enabli ng an En tire MS T Region at Once or Exc han[...]

4-58 Multipl e Instance Sp anning -Tree Opera tion Troub lesho oting an MSTP C onfig ura tion T roub leshooting an MSTP Configuratio n This section describes the show spanni ng-tree comm ands th at yo u can use to monitor , troub leshoot, an d debug th e opera tion of a mult iple-instanc e span- ning-tree configu ration in your netwo rk. Note that [...]

4-59 Multi ple Inst ance S pann ing-T ree Oper ation Troubl esho oting an MSTP Config urati on ■ MST Ins tance ( mst ): Connects all static and (star ting from rele ase 13. x . x ) dynamic VL ANs assigned to a multip le spanning-t ree instance . Use the show spannin g-tree roo t-history comm and to view t he number and dates of chan ges in the as[...]

4-60 Multipl e Instance Sp anning -Tree Opera tion Troub lesho oting an MSTP C onfig ura tion Figure 4-22. Example of show spanning- tree root-histor y cst Command Output Figure 4-23. Exampl e of show sp anning-tr ee root-his tory ist C ommand Outpu t Figure 4-24. Example of show sp anning-tr ee root-his tory msti Command Out put ProCurve(config)# [...]

4-61 Multi ple Inst ance S pann ing-T ree Oper ation Troubl esho oting an MSTP Config urati on Displayi ng Debug Counters for All MST Instances The show spanni ng-tree debug- counters command a llows you to disp lay the aggreg ate values of all MSTP debu g counters that are maintain ed on a switch. These ag gregate valu es are a summa ry of the in [...]

4-62 Multipl e Instance Sp anning -Tree Opera tion Troub lesho oting an MSTP C onfig ura tion Displayi ng Debug Counters for One MST Inst ance The show spanni ng-tree debug- counters instan ce command allows y ou to dis- play t he aggregate values of all MSTP debug co unters main tained on a swit ch for a specified sp anning-tre e instance . These [...]

4-63 Multi ple Inst ance S pann ing-T ree Oper ation Troubl esho oting an MSTP Config urati on Figure 4-26. Example of show sp anning-tr ee debug-co unters insta nce Command Output for All Port s in the CIST Instance ProCurve(config)# show spanning-t ree debug-counters instance 0 Status and Counters - CIST Commo n Debug Counters Information MST Ins[...]

4-64 Multipl e Instance Sp anning -Tree Opera tion Troub lesho oting an MSTP C onfig ura tion Displayi ng Debug Counters for Ports in an MST Instance The show spanni ng-tree debu g-counters in stance ports comm and all ows you to displa y the aggre gate val ues of all M STP debug co unters ma intained on one or mor e ports used b y a specifi ed spa[...]

4-65 Multi ple Inst ance S pann ing-T ree Oper ation Troubl esho oting an MSTP Config urati on Figure 4-27. Exampl e of show sp anning-tr ee debug-co unters in stance ports Command Ou tput for O ne Port in the CI ST Instance ProCurve(config)# show spanning-t ree debug-counters instance 0 ports a15 Status and Counters - CIST Port( s) Debug Counters [...]

4-66 Multipl e Instance Sp anning -Tree Opera tion Troub lesho oting an MSTP C onfig ura tion Figure 4-28. Exampl e of show sp anning-tr ee debug-co unters in stance ports Command Ou tput for O ne Port in an MST Instance Field Des criptions in MSTP Debug Command Output T a ble 4-1 c ontains desc riptions of the debug ging inf ormatio n display ed i[...]

4-67 Multi ple Inst ance S pann ing-T ree Oper ation Troubl esho oting an MSTP Config urati on MST Config Error BPDUs Number of BPDUs rec eive d from a ne ighb or bridg e with incon sisten t MST c onfigu rati on info rmati on. For ex ample, BP DUs from a t ransmi tting bridge may contai n the same MST configu ration ide ntifiers (region na me and r[...]

4-68 Multipl e Instance Sp anning -Tree Opera tion Troub lesho oting an MSTP C onfig ura tion Exc eeded M ax Hop s MSTI MS Gs Numbe r of times t hat an MS TI MSG pac ket is receive d from a bri dge in tern al to the MS T regi on with an MSTI Remai ning Hops valu e less tha n or equa l to 1. Thi s may occu r if the recei ving brid ge is lo cated t o[...]

4-69 Multi ple Inst ance S pann ing-T ree Oper ation Troubl esho oting an MSTP Config urati on T roubleshoo ting MSTP Operation T able 4-2. T roubl eshooting MS TP Operatio n RST BP DUs Tx Numbe r of (80 2.1w) RST BPD Us th at are tr ansmit ted t hrough the por t. This cou nter is maint ained by the CI ST (defa ult MST inst ance 0) on a per-port ba[...]

4-70 Multipl e Instance Sp anning -Tree Opera tion Loop Pr otect ion Loop Protectio n In cas es wh ere s pann ing tr ee ca nnot be u sed to pre vent l oops at the edge of the netw ork, loop prot ection ma y provide a suitabl e alterna tive. Unlik e spanning t ree, howe ver , loop prot ection is not a comprehe nsive loop detectio n featur e and shou[...]

4-71 Multi ple Inst ance S pann ing-T ree Oper ation Loop Protect ion Configur ing Loop Protecti on Loop prot ection p rovides prot ection agai nst loops by transmitting loop protocol pa ckets ou t of ports on w hich loop pr otect ion has been en abled . When the swi tch sends out a loop p rotocol pac ket an d then rec eives th e same packet on a p[...]

4-72 Multipl e Instance Sp anning -Tree Opera tion Loop Pr otect ion Notes ■ The receiver -action option can be config ured on a pe r -port basis and can only be en able d after loop protec tion has be en enabl ed on the p ort. All other co nfigurat ion options ( disable-timer , t rap loop -detected , and transmit interval ) are gl obal. ■ The [...]

5-1 5 Quality of S ervice (QoS): Man aging Bandwidth M ore Effectively Contents Intro ducti on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Overview . . . . . . . . . . . . . . . [...]

5-2 Quality of Service (QoS): Man aging Bandw idth More Effectively Conte nts Error Messages caused by DSCP Policy Changes . . . . . . . . . . . . 5-36 Exampl e of Changin g the Priori ty Setting on a Polic y When One o r More Cla ssifiers Are C urrently Us ing the Pol icy . 5-37 QoS Queu e Configurati on . . . . . . . . . . . . . . . . . . . . . .[...]

5-3 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Introductio n Introduction As the t erm sugg ests , network policy refers to t he netw ork-wide contro ls you can imple ment to : ■ Ensure uni form and efficient traffic ha ndling th roughout yo ur netw ork, while keep ing the most important tra ffic moving at an acceptab le spe[...]

5-4 Quality of Service (QoS): Man aging Bandw idth More Effectively Introduct ion ■ Upgrad e or downgr ade traffi c from va rious ser vers. ■ Control the priori ty of traffic from ded icated VL ANs or applic ations. ■ Chan ge the pri orities of traffic fr om variou s segmen ts of your ne twork as your business needs change. ■ Set priority p[...]

5-5 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Introductio n QoS is im plemente d in the for m of rules or polic ies that ar e configure d on the switch. While y ou can use Qo S to prio ritize only the outb ound traff ic while it is moving through the swit ch, you derive the max imum b enefit by using QoS in an 80 2.1Q VLAN en[...]

5-6 Quality of Service (QoS): Man aging Bandw idth More Effectively Introduct ion T erminology Te r m Use i n Thi s Docum ent 802. 1p priority A traffic priority s etting carr ied by a VLAN-ta gged pack et moving from one dev ice to anothe r through ports that a re ta gged memb ers of the VL AN to which the pa cket be long s. Th is sett ing can be [...]

5-7 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Introductio n Overview QoS settings op erate on two level s: ■ Control ling th e prior ity of o utboun d packet s moving t hroug h the switch: Eac h switch port has four shared o utbound traffic q ueues; the queue w ith a priority value of one ha s the lowest prior ity , and pri[...]

5-8 Quality of Service (QoS): Man aging Bandw idth More Effectively Introduct ion A QoS co nfigurat ion enables yo u to set the out bound prior ity queue to which a packet is sent. (In an 802.1Q VL AN environm ent with VLAN- tagged ports, if Qo S is not conf igured o n the swit ch, but is co nfigure d on an upst ream devi ce, th e prio riti es car [...]

5-9 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Introductio n Y ou ca n co nfigure a QoS p riority of 0 through 3 for an out bound packet . When the packet is then sent to a port, the QoS pri ority dete rmines whic h outbound queu e the pa cket uses : T able 5-2. QoS Priority Settings and Operation If a packet is not in a VLAN-[...]

5-10 Quality of Service (QoS): Man aging Bandw idth More Effectively Introduct ion Classifiers for Prioritizing Outbound Packets Note On Using Multipl e Criteria ProCur ve reco mmends that you configure a minimu m number of the availab le QoS class ifiers for pri oritizing an y given pack et type. Increa sing the number of activ e classifier option[...]

5-11 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Prep arat ion f or Conf igur ing QoS Preparation for Configuring QoS Preserving 80 2.1p Priority QoS op erates in VLAN-tagged and VLAN-u ntagged en vironments. If your network does n ot use multiple VLANs, you can st ill implement the 802. 1Q VLAN cap ability f or packet s to car[...]

5-12 Quality of Service (QoS): Man aging Bandw idth More Effectively Prep aration for Configurin g QoS 2. Se lect the QoS option you wa nt to use. T a ble 5-6 li sts the tra ffic ty pes (QoS classif iers) and the QoS options yo u can use f or priorit izing or setting a policy on t hese tr affic t ypes: T able 5-6. Applying QoS Options t o T raffic [...]

5-13 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Prep arat ion f or Conf igur ing QoS V iewing the QoS Configurati on The foll owing show co mmands are av ailable on the switches co vered in thi s guide. E xamples of the show qos output ar e included with the example fo r each priori ty type. No Override By default , the IP T o[...]

5-14 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Using QoS Classifiers to Configur e Quality of Service for Outbound T raffic Note In addition to the infor mation in thi s section on the v arious QoS cl assifiers, refer to “Q oS Operat ing Note s and[...]

5-15 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic QoS IP T ype-of-Se rvice (T oS) Poli cy and Priority QoS Classifi er Precedenc e: 1 This feature applies on ly to IPv4 traffic an d perfor ms either of the followin g: ■ To S I P - P r e c e d e n c e[...]

5-16 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Assigning an 802.1p Priority to IPv4 Packets on th e Basis of the T oS Precedence Bits If a dev ice or app lication u pstream of th e switch sets th e precedenc e bits in the T oS byte o f IPv 4 packe ts[...]

5-17 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Assigning an 802.1p Priority to IPv4 Packets on the Basi s of Incomin g DSCP One of the best uses for this option is on an interior switch where yo u want to honor (con tinue) a poli cy set on an e dge [...]

5-18 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Operati ng Notes Differe nt applicati ons may u se the same D SCP in the ir IP packet s. Also, the same application may use multiple DSCPs if the applic ation originat es on differe nt client s, servers,[...]

5-19 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic For exam ple, an e dge switch “A ” in an untag ged VLAN assi gns a DSCP of 000110 o n IP packets it receives on po rt A6, and handle s the packet s with high prior ity (7). Whe n these packets r eac[...]

5-20 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Figure 5-6. Example of a T ype-of-Servic e Configura tion Enabling Both Direct 802.1p Priori ty As signm ent an d DSCP Policy Assi gnme nt Notice that codepoin ts 000000 and 00 1001 are named as DSCP pol[...]

5-21 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Assigning a DSCP Polic y on the Basis of the DSCP in IPv4 Packets Received from Upstream Devices The pr eceding sect ion describ es how to forwar d a polic y set by an edg e (or upstr eam) swi tch. This[...]

5-22 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic For exampl e, suppose you want to config ure the following two DSCP pol icies for pack ets receiv ed with the indicated DSC Ps. 1. Deter mine whether the DSCPs alread y have pri ority assign ments, whic [...]

5-23 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic Figure 5-7. Display the Current DSCP-Map Configura tion 2. Co nfig ure th e pol icie s in th e DSCP tab le: Figure 5-8. Example of Polic ies Configured (w ith Optional Name s) in the DSCP T able The DSC[...]

5-24 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic 3. Assign th e policies to th e codepo ints in the se lected pa cket types. Figure 5-9. Example of Policy Assignme nt to Outbound Packets on t he Basis of the DSCP in the Pa ckets Recei ved from Upstream[...]

5-25 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic a. Co nfig ure a sp ecif ic DS CP wi th a sp ecif ic prio rity i n an edge sw itc h. b. Co nfigure the sw itch to ma rk a specific type of inbo und traff ic with that D SCP (and th us create a policy fo[...]

5-26 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic T able 5-7. How the Switch Uses t he T oS Configur ation T able 5-8. T oS IP-Precedence Bit Mappings to 802.1p Priorities Outbou nd Port T oS Option: 802.1p (V al ue = 0 - 7) Differentiated Se rvices IP [...]

5-27 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic QoS Source-Port Pri ority QoS Classifi er Precedenc e: 2 The QoS so urce-por t option enab les you to use a p acket’ s source-p ort on the switch as a QoS classifier . Whe re a particul ar source-por [...]

5-28 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic For examp le, suppose that you want to pr ioritize inbou nd traffic on the fol lowing source -port s: Y ou w ould then execut e the fol lowing c ommands to priori tize traff ic recei ved on the ab ove po[...]

5-29 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic If you then dec ided to remov e port A1 from QoS prioritizati on: Figure 5-12. Returni ng a QoS-Pr ioritized V LAN to “No-overri de” Status Assigning a DSCP Policy Based on the Source-Port This opti[...]

5-30 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic 3. Configu re the DSCP policy by usin g qos dscp-map to config ure the p riority for each c odepoint . (For detai ls, refer to th e exampl e later in thi s section and to “Diff erentiat ed Serv ices Co[...]

5-31 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic For exam ple, suppo se you wanted to assign th is set of pr iorities: 1. Deter mine whether the DSCPs alread y have pri ority assign ments, whic h could indic ate use by e xisting applic ations. This is[...]

5-32 Quality of Service (QoS): Man aging Bandw idth More Effectively Using QoS Classifie rs to Config ure Quality o f Service for Outbound Traffic 3. Assign the DSCP policies to the se lected source -ports an d display the result. Figure 5-15. The C ompleted S ource-Port DSCP-Priori ty Configura tion Radi us Over ride Fi eld. Dur ing a client sessi[...]

5-33 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Differe ntiated Se rvices Cod epoint (DSC P) Mappin g Differentiated Services Codep oint (DSCP) Mappin g The DSCP Pol icy T able associates an 802. 1p priority with a sp ecific T oS byte codepo int in an I Pv4 packet. Thi s enables yo u to set a LAN p olicy that operates inde pen[...]

5-34 Quality of Service (QoS): Man aging Bandw idth More Effectively Differen tiated Servic es Codepoi nt (DSCP) Ma pping T ab le 5- 9. The D efa ult DSC P Pol icy T abl e Default Priority Settings for Selected Codepoints In a few cases, such a s 001010 and 001100, a d efault po licy (impli ed by the DSCP stan dards fo r Assured -Forwardi ng an d E[...]

5-35 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Differe ntiated Se rvices Cod epoint (DSC P) Mappin g For exam ple, in t he defau lt conf iguration, t he foll owing code point set tings are true: If you chan ge all three sett ings to a prio rity of 3, and th en execute write memory , the switch will reflect these changes in th[...]

5-36 Quality of Service (QoS): Man aging Bandw idth More Effectively Differen tiated Servic es Codepoi nt (DSCP) Ma pping Notes on Changi ng a Priority Setting If a QoS classi fier is using a pol icy (codep oint and assoc iated prior ity) in the DSCP P olicy table, yo u must d elete or ch ange thi s usage before you can chang e the prior ity settin[...]

5-37 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Differe ntiated Se rvices Cod epoint (DSC P) Mappin g T able 5-10. Error Messages Gen erated by DSCP Policy Chan ges Example of Chan ging the Priority Setting on a Pol icy When One or More Classifiers Are Currently Using the Po licy Suppo se that code point 000 001 is in us e by [...]

5-38 Quality of Service (QoS): Man aging Bandw idth More Effectively Differen tiated Servic es Codepoi nt (DSCP) Ma pping Figure 5-18. Example of a Search to Identify Classifie rs Using a Codep oint Y ou W ant T o Change ProCurve (config)# show qos dscp-map DSCP -> 802.p priority mappings NOTE: 'qos type-of- service diff-services' must[...]

5-39 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively Differe ntiated Se rvices Cod epoint (DSC P) Mappin g 2. Ch ange the c lassi fi er con figur atio ns by ass ignin g the m to a di ffer ent DS CP policy , or to an 8 02.1p prio rity , or to No-override . Fo r example: a. D elete the po licy a ssig nment f or the dscp-map classi fi[...]

5-40 Quality of Service (QoS): Man aging Bandw idth More Effectively QoS Queu e Configuratio n QoS Queue Configuration By defa ult, there ar e four prior ity queues or traffic classe s. These are shar ed across all ports. This nu mber cannot be reconf igured.[...]

5-41 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively QoS O perat ing Notes an d Restr icti ons QoS Operating Notes and Restrictions QoS supp ort bas ed on packe t type is s hown below . T able 5-11. Details of Packet C riteria a nd Rest rictions f or QoS Support ■ All Swit ches: For expli cit QoS support of IP subnets, ProCur ve [...]

5-42 Quality of Service (QoS): Man aging Bandw idth More Effectively QoS Opera ting Notes and Restric tions T able 5-12. Maximum Q oS Entri es. Attempti ng to exceed the ab ove limi ts genera tes the fol lowing me ssage in the CLI: Unable to add this QoS rule. Maximum number ( entry -# ) already reached. ■ Not Sup ported: Use of an i nbound 802.1[...]

5-43 Quality of Serv ice (QoS): M anaging Bandwidth More Effe ctively QoS O perat ing Notes an d Restr icti ons IP Multicast (IGMP) Interaction with QoS IGMP hi gh-priority -forward ca uses the swit ch to servic e the subscr ibed IP multic ast group traf fic at high prio rity , even if QoS on the switch has relegat ed the traffi c to a lower p rior[...]

Index – 1 Inde x Numerics 802.1p priority (QoS) defi niti on … 5-6 802.1Q VLAN tagging …3 - 3 802.1w as a region …4 - 1 6 A adve rtise ment , GVR P defi niti on … 3-3 B bandwid th effect of QoS … 5-1 bandwidth loss, sp anning tree …4 - 1 2 bloc ked link from STP op eration …4 - 1 2 bloc ked port from S TP operat ion … 4- 10 Bootp [...]

2 – In dex G GARP See GVRP. gateway manual con fig pr iori ty … 2- 46 GVRP …4 - 8 advert isemen t … 3-1 9 advert isemen t, def ined … 3-3 adverti sement , resp onses to … 3-6 advert isemen ts, g ener ating … 3-11 auto op tion … 3-10 bene fit … 3-3 block … 3- 8 CLI, co nfiguri ng … 3-14 confi gur able port opti ons … 3-6 conf[...]

Inde x – 3 message VLAN alre ady exi sts … 2-38 MSTI, config uration …4 - 3 5 MSTP instan ce mappi ng … 4-43 preconfig ure benefits … 4-4 2 preconfig ure topology … 4-42 preconfig ure vlans in instan ce … 4 -43 savi ng cur rent config ura tion … 4-47 See spanni ng-tre e, 802. 1s. vlan ran ge opt ion … 4 -44 multiple forwar ding da[...]

4 – In dex blocke d link … 4- 12 blocke d port … 4-1 0 broa dcast stor m … 4-3 enablin g MSTP … 4-40 MSTP See spanni ng-tre e, 802 .1s VLAN effect o n … 2-55 spanning-tre e conf ig-name … 4-43 conf ig-revision … 4-43 inst ance vlan … 4 -42, 4-43 root-history … 4-58 spanning-tre e, 802.1s …4 - 4 , 4 - 6 802.1D a nd 802. 1w conn[...]

Inde x – 5 MIB … 4- 49 MST re gion See region. MSTI … 4- 8, 4- 15 MSTI root … 4-10 MSTI roo t, di splay ch ange histor y … 4-5 8 MSTI, vi ew stat us … 4- 53 MSTP … 4-9 MSTP ope ratio n … 4-9 MSTP, v iew glo bal config uration … 4 -54 multiple spanning tree instance See MSTI overri de hello-time … 4-15 path c ost, ef fect on 802.[...]

6 – In dex defi niti on … 5-7 V VID See VL AN . VLAN alread y exists, messa ge … 2-38 broa dcast dom ain … 2- 4 CLI, co mman ds … 2-2 8 CLI, conf iguring param eters … 2-27 conver t dynam ic to st atic … 2-37, 3-3 dedic ate d mana geme nt … 2-4 5 default VLAN VID … 2-45 default VLAN, name change … 2-45 DEFAULT_ VLAN … 2-45 del[...]

Inde x – 7 VID, defa ult VLAN … 2-45 voice … 2- 5, 2 -29, 2- 30, 2- 32, 2-5 5 voice , conf igurat ion … 2- 36 voice, configuring … 2-28 voice, VLAN type … 2 -13 web bro wser config uration … 2 -39 See al so GVRP. VLANs static , 802. 1s spa nnin g tree … 4-8 voice VLAN See VLAN. VoIP oper ating rul es … 2 -13 See al so V LAN, vo ic[...]

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