Instruction/ maintenance manual of the product SUPERSTACK 3 3226 3Com
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Par t No. DNA1750-0A AA02 Publi shed A pri l 2004 S UPER S TAC K ® 3 S WI TCH 32 26 AND S WITC H 3250 S OF TWARE V ERSIO N 1.02 R ELEASE N OT ES Rel ated Do cu ment atio n Please use t h ese notes i .
2 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES The softwa re is avai lable in two versions : ■ s3201_0 2.bin — Provides no r mal levels of encryption with keys of up to 56 bi ts in length. ■ s3201_0 2s.
Err or s a nd Omis sions 3 Data is invalid err or with n o exp lanati on. The new firm ware r etur ns an err or describing the field containing the error and then returns to the page allowing the error t o be c orr ected.
4 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES RM ON his to ry st atist i cs and W eb por t his tor y sta tistic s A bug in previous software versions prevented statisti c s being generated f o r the fi rst timing interv al.
Updati ng the Swit ch Software 5 See “Access Con trol Lis ts” in the “Points to Note when using the Switch 3226 an d Swit ch 3250” section of thi s document for further det ai ls.
6 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES 11 Sele c t SoftwareUp grade . 12 Enter the IP address of t h e TF TP server connect ed to the Switch . 13 Enter the up grade fi le name. a The messag e will appear , ' Software Upgrade in progress.
Poi nts to Not e whe n usi ng the Swi tch 3226 and S witch 3250 7 3Com recomm ends that you set in dividual ports that ar e to b e members o f an a ggregat ed link t o the same VLAN me m bershi p . Thi s ensur es communicatio n between all VLANs at all time s.
8 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES No more ports may be added to aggregated link. Y o u should check the configuration of the following items on the physical port ■ port security is di sabled on the port.
Poi nts to Not e whe n usi ng the Swi tch 3226 and S witch 3250 9 This message can be caused by one of the follow ing situa tio ns: ■ if there a re more than14 routes whose next hop is not t h e default gateway .
10 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES ■ The ACL whic h is being bound h as mor e rules than can be a ccomm odated by th e hardware. The number rules availa ble depend s on the port type : ■ 10/100 Ports - At least 15 rul es per port ■ 10/100/1000 Ports - Maximum of 2 rules per port.
Poi nts to Not e whe n usi ng the Swi tch 3226 and S witch 3250 11 minimum sampli ng period o f 10 seco nds a nd a minimum hysteresi s of 20%. SS H Manage ment ■ The SSH serv er in the unit will reject all connection requests unless the unit has a SSH host key .
12 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES default gateway setting to be l ost. Y ou s hould always check the IP addr ess an d r oute configuration when restoring the configuration on another unit.
Poi nts to Not e whe n usi ng the Swi tch 3226 and S witch 3250 13 Comb ination Ports ■ The two 10/100/1000 ports are combination ports. When an SFP module is inserted it ha s priority over the 10/100/1000 port of the same number . The corr esponding 10/100/1000 port is disabled.
14 S UPER S TACK ® 3 S WITCH 3226 AND S WITCH 3250 S O FTWAR E V ERSION 1.0 2 R ELEASE N OTES Known Inter o pera b ility Iss ues ■ An in co mpa tibil ity exist s wh en ch ang ing link spe ed from 10 Mbps half duplex to 100 Mbps ha lf duplex.
An important point after buying a device 3Com SUPERSTACK 3 3226 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3Com SUPERSTACK 3 3226 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data 3Com SUPERSTACK 3 3226 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com SUPERSTACK 3 3226 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com SUPERSTACK 3 3226 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com SUPERSTACK 3 3226, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime 3Com SUPERSTACK 3 3226.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com SUPERSTACK 3 3226. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com SUPERSTACK 3 3226 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
