Cisco Systems IC-23 manuale d’uso

IC-23 Cisco IOS Interface Configuration Guide Configuring LAN Interfaces Use the info rmation in this chapter to configure LAN interfaces supported on Cisco routers and access servers. This chapter describes the pro cesses for confi guring LAN interf aces in the follo wing sections: • Config uring an Ethernet or F ast Ethernet Interface • Confi[...]

Configuring LAN Interfaces Configuring an Ethern et or Fast Ethernet Interface IC-24 Cisco IOS Interface Configuration Guide W ith the Catalyst 3000 or Catalyst 5000 system, the F ast Ethernet processor can be used to aggregate up to twelve 10-Mbps LANs and gi ve them high-speed access to such Layer 3 ro uting services as providing f irewa lls and [...]

Configuring LAN Interfaces Configuring an Ethernet or Fast Etherne t Interface IC-25 Cisco IOS Interface Configuration Guid e Specifying an Ethernet or Fast Ethernet Interface T o specify an Ethernet interface and enter interf ace configuration mode , use one of the fo llowing commands in global conf iguration mode: Use the show interfaces fastethe[...]

Configuring LAN Interfaces Configuring an Ethern et or Fast Ethernet Interface IC-26 Cisco IOS Interface Configuration Guide Specifying Full-Duplex Operation The default is half-dup lex mode on the FEIP2-DSW -2FX . T o enable ful l-duplex mode on the FEIP2-DSW -2FX (for a maximum aggreg ate bandwidth of 200 Mbps), use either of the fo llo wing comm[...]

Configuring LAN Interfaces Configuring an Ethernet or Fast Etherne t Interface IC-27 Cisco IOS Interface Configuration Guid e Extending the 10BASE-T Capability On a Cisco 4000 series or Cisco 4500 series routers , you can extend the twisted-p air 10B ASE-T capability beyond t he standard 100 meters b y reducing the squelch (sign al cutof f time). T[...]

Configuring LAN Interfaces Configuring an Ethern et or Fast Ethernet Interface IC-28 Cisco IOS Interface Configuration Guide Configuring PA-12E/2FE Port Adapter The P A-12E/2FE Ethernet switch port adapter provides Cisco 7200 series routers with up to twelve 10-Mbps and two 10/ 100-Mbps switched Ethernet (10B ASE-T) and Fast Ethernet ( 100B ASE-TX)[...]

Configuring LAN Interfaces Configuring an Ethernet or Fast Etherne t Interface IC-29 Cisco IOS Interface Configuration Guid e Note If you use the full-duplex and the half-duplex commands to change the transmission mo de of the first tw o P A-12E/2FE interfaces (port 0 and port 1), the transmi ssion speed of the two P A-12E/2FE interf aces automatic[...]

Configuring LAN Interfaces Configuring an Ethern et or Fast Ethernet Interface IC-30 Cisco IOS Interface Configuration Guide T o conf igure the interf aces on the P A-12E/2FE port adapter , use the following command s in global confi guration mode: T o enable integrated routing and bridg ing on the bridge g roups, use the follo wing commands begi n[...]

Configuring LAN Interfaces Configuring an Ethernet or Fast Etherne t Interface IC-31 Cisco IOS Interface Configuration Guid e Monitoring and Maintaining the PA-12E /2FE Port Adapter After configuring the ne w interface, you can display its status and veri fy other information. T o display information abou t the P A-12E/2FE port adapt er , use the f[...]

Configuring LAN Interfaces Configuring an Ethern et or Fast Ethernet Interface IC-32 Cisco IOS Interface Configuration Guide Y ou can access the 12E/2FE VLAN Conf iguration W ebT oo l from your router’ s home page. For compl ete procedures on ho w to use the VLAN Configuration W ebT ool, refer to the P A-12E/2FE Ethernet Switch P ort Adapter book[...]

Configuring LAN Interfaces Configuring Fast EtherChannel IC-33 Cisco IOS Interface Configuration Guid e Configuring the 100VG- AnyLAN Port Adapter The 100VG-An yLAN port adapter (P A-100VG) is av ailable on Cisco 7200 series routers and on Cisco 7500 serie s routers. The P A-100VG pro vides a single in terface compatible with and speci fied b y IEE[...]

Configuring LAN Interfaces Configuring Fast EtherC hannel IC-34 Cisco IOS Interface Configuration Guide links. Unicast, broadcast, and multicast traf fic is d istributed across th e links pro viding higher performance and redundant paral lel path s. In the e vent o f a link failure, tr af fic is redirected to remaining links within the F ast EtherC[...]

Configuring LAN Interfaces Configuring Fast EtherChannel IC-35 Cisco IOS Interface Configuration Guid e Configuring the Port-Channel Interface T o conf igure the port-channel in terface, use the foll ow ing commands be ginning in gl obal confi guration mode: Note If you want to use the Cisco D iscov ery Protocol (CDP), you mu st conf igure it on th[...]

Configuring LAN Interfaces Configuring Fast EtherC hannel IC-36 Cisco IOS Interface Configuration Guide Configuring the Fast Ethernet Interfaces T o assign the F ast Ethernet interf aces to the F ast EtherChannel, use the follo wing commands beginning in global conf iguration mode : Caution The port-channel interface is th e routed interface. Do no[...]

Configuring LAN Interfaces Configuring a Fiber Dist ribute d Data Interface IC-37 Cisco IOS Interface Configuration Guid e EtherChannel e ven if the line protocol goes do wn. This can result in unpredictable beha vior . The implementation of the Port A ggreg ation Protocol in a subsequent release of this feature wi ll remov e the dependency on keep[...]

Configuring LAN Interfaces Configuring a Fib er Distributed Data In terface IC-38 Cisco IOS Interface Configuration Guide The scatter-gather architecture us ed b y particle-based swit ching pro vides the follo wing advant ages: • Allo ws dri vers to use memory more ef ficiently (especially when using media that has a large maximum transmission un[...]

Configuring LAN Interfaces Configuring a Fiber Dist ribute d Data Interface IC-39 Cisco IOS Interface Configuration Guid e The CFM state is throu gh A in the sample out put, which means this interf ace’ s Phy-A has successfully completed CMT with the Phy-B of th e neighbor and Phy-B of this in terface has successfully completed CMT with the Phy-A[...]

Configuring LAN Interfaces Configuring a Fib er Distributed Data In terface IC-40 Cisco IOS Interface Configuration Guide Enabling FDDI Bridgi ng Encapsulation Cisco FDDI by default uses the SN AP encapsula tion fo rmat def ined in RFC 1042. It is not necessary to defin e an encapsulation method for this in terface when using t he FIP . FIP fully s[...]

Configuring LAN Interfaces Configuring a Fiber Dist ribute d Data Interface IC-41 Cisco IOS Interface Configuration Guid e Setting the Token Rotation Time Y ou can set the FDDI token rotatio n time to control ring schedu ling during normal operati on and to detect and reco ver from serious ring erro r situations. T o do so, use the f ollo wing comm[...]

Configuring LAN Interfaces Configuring a Fib er Distributed Data In terface IC-42 Cisco IOS Interface Configuration Guide Modifying the TB-Min Timer Y ou can change the TB-Min timer in the PCM from its def ault v alue of 100 ms. T o do so, use the follo wing comman d in interface conf iguration mode: Modifying the FDDI Timeout Timer Y ou can change[...]

Configuring LAN Interfaces Configuring a Fiber Dist ribute d Data Interface IC-43 Cisco IOS Interface Configuration Guid e Controlling the CMT Microcode Y ou can control whether the CMT o nboard functions ar e on or off. The FIP provides CMT functions in microcode. These functions ar e separate from those pro vided on the proce ssor card and are ac[...]

Configuring LAN Interfaces Configuring a Hub Interface IC-44 Cisco IOS Interface Configuration Guide Controlling the FDDI SMT Message Queue Size Y ou can set the maximum number of unprocessed FDDI Station Management (SMT) frames that wil l be held for processing. Setting thi s number is useful if the router you are conf iguring gets bu rsts of mess[...]

Configuring LAN Interfaces Configuring a Hub Interface IC-45 Cisco IOS Interface Configuration Guid e Enabling a Hub Port T o enable a hub port, use the fol lo wing commands in global conf iguration mode: Disabling or Enabling Automatic Receiver Polarity Reversal On Ethernet hub ports only , the hub ports can in vert, or co rrect, the polarity of t[...]

Configuring LAN Interfaces Configuring a Hub Interface IC-46 Cisco IOS Interface Configuration Guide T o enable the link test functi on on a hub port conn ected to an Ethernet inte rface, use the follo wing command in hub conf iguration mode: Enabling Source Address Control On an Ethernet hub port onl y , you can configure a se curity measure such [...]

Configuring LAN Interfaces Configuring a LAN Ex tender Interface IC-47 Cisco IOS Interface Configuration Guid e Configuring a LAN Extender Interface The Cisco 1001 and Cisco 1002 LAN Ext enders are two-port chassis th at connect a remote Ethernet LAN to a core router at a central site (see Figure 3). The LAN Extender is intended for small networks [...]

Configuring LAN Interfaces Configuring a LA N Extender In terface IC-48 Cisco IOS Interface Configuration Guide Figure 4 Expanded View of Cisco 1 0 0 0 Ser ies LAN Extender Connection Management of the LAN Extender Interface Although there is a physi cal connection between th e core router an d the LAN Extender , what you actually manage is a remot[...]

Configuring LAN Interfaces Configuring a LAN Ex tender Interface IC-49 Cisco IOS Interface Configuration Guid e Configuring the LAN Extender Y ou c onfigure the LAN Extender from the c ore rout er—either a Cisco 4000 series or Cisco 7000 series router—as if it were simply a netw ork interf ace board. The LAN Extender cannot be managed or config[...]

Configuring LAN Interfaces Configuring a LA N Extender In terface IC-50 Cisco IOS Interface Configuration Guide LAN Extender Interface Configuration Task List T o conf igure a LAN Extender interf ace, perform the tasks describ ed in the follo wing sections: • Config uring and Creati ng a LAN Extender Interf ace (Required) • Defining P acket Fil[...]

Configuring LAN Interfaces Configuring a LAN Ex tender Interface IC-51 Cisco IOS Interface Configuration Guid e Note Do not configure the MTU to a value other than the default v alue when you are configuring a LAN Extender interface. Defining Packet Filters Y ou can conf igure spec if ic administ rati ve f ilters th at f ilter frames based on their[...]

Configuring LAN Interfaces Configuring a LA N Extender In terface IC-52 Cisco IOS Interface Configuration Guide The major reason to create acces s lists on a LAN Extender interface is to pre vent traf fic that is local to the remote Ethernet LAN from traversing the W AN and reaching th e core router . Y ou can filter packets by MA C address, includ[...]

Configuring LAN Interfaces Configuring a LAN Ex tender Interface IC-53 Cisco IOS Interface Configuration Guid e Once you ha ve def ined an access list to filter b y a pa rticular v endor code, you can assign this li st to a particular LAN Extender in terface so that the i n terface will then f ilter based on the MA C source addresses of packets rec[...]

Configuring LAN Interfaces Configuring a LA N Extender In terface IC-54 Cisco IOS Interface Configuration Guide T o control priority q ueueing on a LAN Extender interf ace, perform the follo wing tasks: • Set the priority b y protocol type. • Assign a priority group to an interface. T o establish queueing prior ities based on th e protoc ol typ[...]

Configuring LAN Interfaces Configuring a LAN Ex tender Interface IC-55 Cisco IOS Interface Configuration Guid e Shutting Down and Restarting the LAN Extender’s Ethernet Interface From the core rout er , you can shut down the LAN Exte nder’ s Ethernet interface. This s tops traff ic on the remote Ethernet LAN from reaching the core router , b ut[...]

Configuring LAN Interfaces Configuring a LA N Extender In terface IC-56 Cisco IOS Interface Configuration Guide Troubleshooting the LAN Extender The primary means of troublesh ooting the LAN Exte nder is by usin g the light emitting dio des (LEDs) that are present on the chassis. This section will help you assist the remote user at the LAN Extender[...]

Configuring LAN Interfaces Configuring a LAN Ex tender Interface IC-57 Cisco IOS Interface Configuration Guid e For more co mplete network troubleshooting in formation, refer to the T r oubleshooting Internetworking Systems publication. SYSTEM OK On Steady Lights w hen the unit passes t he po wer on diagnostics. This indicates proper operation. Bli[...]

Configuring LAN Interfaces Configuring a Token Ring Interf ace IC-58 Cisco IOS Interface Configuration Guide Configuring a Token Ring Interface Cisco supports v arious T oken Ring interfaces. Refer to the Cisco Pr oduct Catalog f or information about platform and hardwa re compatibility . The T oken Ring interf ace supports both r outing (Layer 3 s[...]

Configuring LAN Interfaces Configuring a Tok en Ring Interface IC-59 Cisco IOS Interface Configuration Guid e Dedicated Token Ring Port Adapter The Dedicate d T oken Ring port a dapter (P A-4R-DTR ) is available on Cisco 7500 series routers, Cisco 7200 series router s, and Cisco 7000 series routers with the 7000 Series Route Swi tch Processor (RSP7[...]

Configuring LAN Interfaces LAN Interface Configura tion Examples IC-60 Cisco IOS Interface Configuration Guide Configuring PCbus Token Ring Interface Management The T oken Ring interface on the AccessPro PC card can be managed by a remo te LAN manager ov er the PCbus int erface. Currently , the LanOptics Hub Netwo rking Management software ru nning[...]

Configuring LAN Interfaces LAN Interface Co nfiguration Examples IC-61 Cisco IOS Interface Configuration Guid e Ethernet Encapsulation Enablement Example These commands enable standard Ether net V ersion 2. 0 encapsulation on the Ethe rnet interface processor in slot 4 on port 2 of a Cisco 7500 s eries routers: interface ethernet 4/2 encapsulation [...]

Configuring LAN Interfaces LAN Interface Configura tion Examples IC-62 Cisco IOS Interface Configuration Guide Router(config)# interface ethernet 3/2 Router(config-if)# bridge-group 20 Router(config-if)# cut-through Router(config-if)# no shutdown Router(config-if)# exit Router(config)# %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet3/2, ch[...]

Configuring LAN Interfaces LAN Interface Co nfiguration Examples IC-63 Cisco IOS Interface Configuration Guid e Fast EtherChannel Configuration Examples Figure 10 sho ws four point-to-point Fast Ethernet interfaces that ar e aggregated into a single Fast EtherChann el interface. Figur e 1 0 Fast Ether net Interf aces Aggr egated int o a F ast Ether[...]

Configuring LAN Interfaces LAN Interface Configura tion Examples IC-64 Cisco IOS Interface Configuration Guide The follo wing is a pa rtial exampl e of a conf iguratio n file. The MA C address is automatically added to the Fast Ethernet interface when the interfaces are added to the Fast EtherCha nnel. Note If you do not assign a static MA C addres[...]

Configuring LAN Interfaces LAN Interface Co nfiguration Examples IC-65 Cisco IOS Interface Configuration Guid e Hub Configuration Examples The follo wing sections p rovide e xamples of hub conf iguration: • Hub Port Startup Examples • Source Address for an Ethernet Hub Po rt Confi guration Examples • Hub Port Shutdo wn Examples • SNMP Illeg[...]

Configuring LAN Interfaces LAN Interface Configura tion Examples IC-66 Cisco IOS Interface Configuration Guide SNMP Illegal Address Trap Enablem ent for Hub Port Example The follo wing e xample specif ies the gatew ay IP address and enables an SNMP trap to be issued to the host 172.69.40.51 when a MA C address violation is detected on hub ports 2, [...]

Configuring LAN Interfaces LAN Interface Co nfiguration Examples IC-67 Cisco IOS Interface Configuration Guid e Ethernet Type Code Filtering Example Using the same conf iguration as in the pre vious section, you could allow only the Macintosh traf f ic by Ethernet type code with the follo wing access list: access-list 220 permit 0x809B 0x0000 inter[...]

Configuring LAN Interfaces LAN Interface Configura tion Examples IC-68 Cisco IOS Interface Configuration Guide[...]