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3Com 3250 manual

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Table of contents for the manual

  • Page 1

    Par t No. DNA1750-0A AA02 Publ ishe d Apr il 2004 S UPER S TA CK ® 3 S WI TCH 32 26 AND S WITC H 3 250 S OF TW ARE V ERSIO N 1.02 R ELEASE N OT ES Rel ate d Do cu ment a tio n Please use t h ese notes in c onjunction with the foll owing documents: ■ “ SuperStack 3 S witch 32 26 and Sw itch 3250 G e tting St arted Guid e ” Part number: DUA175[...]

  • Page 2

    2 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ERSION 1.0 2 R ELEASE N OTES The softwa re is avai lable in two versions : ■ s3201_0 2.bin — Provides no rmal levels of encryption with keys of up to 56 bi ts in length. ■ s3201_0 2s.bin — Provides higher levels of encryption including 168-bit 3DES and 256-bit AES. The Swit ch[...]

  • Page 3

    Err ors a nd Omissi ons 3 Data is invalid err o r with n o exp lanati on. The new firm ware r eturns an err or desc ribing the field containing the err or and then returns to the page allo wing the err or t o be corr ecte d. Comma nd Li ne I nte rfac e The output of the bridge port summary CLI comma nd has been improved: ■ The stpState f ield has[...]

  • Page 4

    4 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ER SION 1. 02 R ELEASE N OTES RM O N his t o ry st at isti cs an d Web por t his t ory sta tist ics A bug in previous softw ar e versions prevented statisti cs being generated f or the fir st timing i nterval . This has now been fixed. In pr evious software versions the 1 hour statist[...]

  • Page 5

    Updati ng the Sw itch Softwa re 5 See “Access Con trol Lists” in the “Points to Note when using the Switch 3226 an d Switch 3250” section of thi s document for further det ails. 3Co m Net work Su pervis or Dis cover y When using 3Com Netwo rk Supervisor with previ ous versions o f the software, 3C om N etwork Supe rvisor was unable to displ[...]

  • Page 6

    6 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ER SION 1. 02 R ELEASE N OTES 11 Sele ct SoftwareUp grade . 12 Enter the IP address of t h e TF TP server connected to the Switch . 13 Enter the upgrade fil e name. a The messag e will appear , ' Software Upgrade in progress.....' . b The enti re time the upgrade is in pr oc[...]

  • Page 7

    Poi nts t o Note w hen u si ng the Swi tch 3226 and S wit ch 3250 7 3Com recommends that y ou set in dividual ports that ar e to be members o f an a ggregat ed l ink t o the same VLAN me mbershi p. This ensu res co mmunication between al l VLANs a t all time s. T eln et and H yperT ermi n al Acce ssing the Command Lin e Interf ace via T elnet or W [...]

  • Page 8

    8 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ER SION 1. 02 R ELEASE N OTES No more ports may be added to aggregated link. Y ou should ch eck the configuration of the following items on the physical port ■ port security is di sabled on the port. ■ The VLAN membership of the port mat ches that of the aggr egated link ■ LACP [...]

  • Page 9

    Poi nts t o Note w hen u si ng the Swi tch 3226 and S wit ch 3250 9 This message can be caused by one of the follow ing situ at io ns: ■ if there a re more than14 routes whose next hop is not t he default gateway . 3Com re comm ends rec on figuring the netw ork so that the uplink from the Switch goes directly to another layer 3 router which is c [...]

  • Page 10

    10 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ER SION 1. 02 R ELEASE N OTES ■ The ACL which is being bound h as more rules than can be accomm odated by th e hardware. The number rules avail able depend s o n the port ty pe: ■ 10/100 Ports - At least 1 5 rules pe r port ■ 10/100/1000 Ports - Maximum of 2 rules per port. ■[...]

  • Page 11

    Poi nts t o Note w hen u si ng the Swi tch 3226 and S wit ch 3250 11 minimum sam pling p eriod o f 10 seco nds and a minimum hysteresis of 20%. SS H Manage ment ■ The SSH serv er in the unit w ill rejec t all connec tion requests unless the unit has a S SH host key . This host key may be generated using the Securi ty > De vice > SSH > Se[...]

  • Page 12

    12 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ER SION 1. 02 R ELEASE N OTES default gateway setting to be l ost. Y ou s hould always chec k the IP add r ess an d r oute configuration when restoring the configuration on another uni t. IGM P Disabling IGM P when there ar e hosts subscrib ing to mu ltica st IP streams m ay prevent [...]

  • Page 13

    Poi nts t o Note w hen u si ng the Swi tch 3226 and S wit ch 3250 13 Comb inatio n Po rts ■ The two 10/100/ 1000 ports a re combination ports. When an SFP module is inserted it has priority o ver the 10/100/100 0 port of t he same numbe r . The corr esp onding 10/100 /1000 port is di sab led. The combination p orts a re numbe red 25-26 o n the Sw[...]

  • Page 14

    14 S UPER S TACK ® 3 S WITCH 3226 AND S W ITCH 3 250 S OFTWARE V ER SION 1. 02 R ELEASE N OTES Known Inter opera bility Issu es ■ An in com pa tibil it y e xists wh en ch an g ing link spe ed from 10 M bps ha lf dupl ex to 100 Mbps half duplex. If a u to-negotiation on the Switch is disabled a nd the l ink speed on the Sw itch is changed from 10[...]