3Com 3C16120 manuale d’uso

http://www.3com.com/ Publ ished Jun e 2001 Sup erS tack ® 3 Ser v er L oad B ala nc er Ser ver Lo ad B al a ncer P l us Rel eas e N ot e s 3C16120 3C16121 Sof tware Versi on A3.5 Release Date June, 2001[...]

3C om Corporatio n 54 00 Bayfr ont Plaza Sa nta Clara, Cali fo r ni a 95 052-8145 Copy right © 2001, 3Co m T echnolog ies. All right s r eserve d. No part of this docume ntation may be reprodu c e d in any f orm or by a ny mea ns or us ed to make any d erivativ e work (suc h as translation , transf ormation, o r adapta tion) withou t wr itten per [...]

C ONTE NTS R ELEASE NO TE INFORMATIO N Overview 5 Product Prer e quisites 5 W eb Browser Require ments 6 Solari s a nd Linux Operating Systems 6 Reset T o Factory Defaults 6 Configuration Issues 6 Changing Pa ssword 7 Committing C onfigurations 7 Resetting Unit Settings 7 Cloc k Setti n gs 8 Redundant Co nfiguration Issues 8 Virtual Rou t e r Re du[...]

T ECHNICAL S UPPORT On lin e T e ch nical Ser vic es 1 W orld W ide Web Site 1 3Com Kn owledg ebase W e b Services 1 3Com F TP Site 2 Support from Y ou r Network S upplier 2 Support from 3C om 2 Return ing P roducts for R e p air 4[...]

R EL EASE NOTE INFORMATION Ov er view T hese release no tes c over the S erve r Load B alan cer (3C1 6120) a nd the Serve r L oad B a lancer Plu s ( 3C1 6 121). Bef ore using you r Serve r Loa d Ba lance r a nd Ser ver Load Bala ncer Plus, please r ead this d oc ument in its en tir ety . It cont ains import ant info rmation about the produc t and t[...]

6 R ELEASE NO TE I NFORM ATION Bala ncer Plus. I f the J RE p rogram i s m issing, yo u wi ll be prompt ed t o i n stall it . See the Server L oad Balan cer and Server Load B al ancer Plus User G uid e f or i nformati on. Fo r an up t o da te list o f suppo rted o peratin g system s and b rowser re lea ses, refer to t he 3Co m W eb site at ht tp://[...]

Config uration Is sues 7 C hangi ng Pass word The Server L oad B ala ncer and Serv er Load Bala n cer Pl u s p ro v i d e t wo leve l s of access, admi n a nd moni tor . The password field cont ains blan k default l ogin passw ords. Th e t wo l evels of access are: ■ admin — t he u ser c an ac c ess an d change al l m anageab le para meters ■[...]

8 R ELEASE NO TE I NFORM ATION Redu ndant Co nfi gura tion When resetting Devi ce A, the prima ry IP addresse s (for bot h Device A & Devic e B ), the subnet mask an d t he defaul t rou t er setti ngs are p reser v ed. The de vic e redund ancy setting i s set to no ne a nd De vice B sync hronize s to t hi s c onf ig ur ati on set ti ng . Wh en [...]

Re dundan t Conf igura tion Issu es 9 T ab le 1 de pi cts t he co nt ri buti ng val ue s us ed for t he v ari ou s n etwo rk co nnecti vity co mp onent s m onitored by th e Serve r Lo ad Ba lanc er and Serve r Load Balancer Plus: In the exam ple me ssage log li ne sho wn u nder Virtual Rou ter Red und ancy Pro toc ol Pri o ri ty G en era t io n on [...]

10 R ELEASE NO TE I NFORM ATION I n some cas es, th ese identif iers coul d col lide with ei ther anoth er Ser ver Lo ad Bal ancer and Serve r Lo ad Ba lanc er Pl us or wi th ot her netw ork devic es that are tak ing part in t he V RR P protoco l. As a r esult, i t m ay b e necessar y to overri de the VRIDs used by th e Server Loa d Balanc er and S[...]

Sy s tem C l oc k 11 Sy stem C lock The ti m e set tings may ge t lost when po wer is re moved fr om the devi c e for durati ons greater than 30 days. Follow ing an initial in stallation or wh e ne ver p o we r i s re mo v ed fro m th e de vi c e fo r a n ex te n de d p er i od o f tim e, it i s re co m me nd e d t ha t th e tim e s e tti ng b e v [...]

12 R ELEASE NO TE I NFORM ATION See th e Ser ver Load Bala ncer and Server Load Bala ncer Plus User G u i de fo r in f or ma tio n . S erver Netw ork Ad dress T ran s lat ion The Ser v er L oad Bal an cer and Serv er Load Bala n cer Pl u s al low s f o r a netwo rk addr ess t o be spe c if ied for tran slatio n when a serv er initiate s a conn ecti[...]

So ftware Upgrad es 13 T a ble 2 d escribes t he b ack off dela y time s for ea ch retry: Once th e Server Load B al ancer a n d Serv er Load Bala n cer Pl us have backe d off the timeo ut , i t will nev er go bac k down a gain. For examp le, if a pack et is droppe d it ma y go from a time o ut of 8 to 1 6 seco nds and re m ains at a 16 se cond tim[...]

14 R ELEASE NO TE I NFORM ATION[...]

T ECHN ICAL S UPP ORT 3Co m p r o vides easy a cce ss to t echn ical suppor t infor mat ion t hrough a vari ety of s ervices. This sec tion des c r ibes these s ervices. Info rmation c ont aine d i n this sect i o n is correct at t ime of publi catio n. For the most recent infor mat ion, 3 Com r ec omm ends that y ou ac cess the 3Co m Co rporat ion[...]

2 T ECHNICAL S UPPORT 3Co m F TP S it e D own l o ad drivers, pat ches, softw are, and MIBs across the Int erne t from the 3Co m pub lic F TP site. This service is avai lable 24 hours a day , 7 days a week . T o con n ect t o the 3Co m F TP site, en te r the foll owing in formati o n in to yo ur F T P client: ■ Hostname: ftp .3com.co m ■ Usern [...]

Supp ort f rom 3Com 3 ■ A l is t o f sy s te m ha rdw are an d so ftw a re, in clu d in g re vis io n l ev el s ■ Diagnost ic erro r mess ages ■ Detai ls abou t rec ent conf igura tion cha nges, if appli cable Here is a list of world wide technica l te lephon e supp ort nu mb ers. Th ese num bers ar e cor re c t at the t ime of pu blica tion.[...]

4 T ECHNICAL S UPPORT Retu rni ng Products fo r Rep ai r Bef ore you se nd a product direct l y to 3Co m for repair , y ou must first obta in an au tho rizati on num ber . Pr o duc ts sen t to 3 Com witho ut aut horization num ber s wi ll be retur ne d to t he send er u nopen ed, a t the sender ’ s expense. T o obtain an auth o riz ation number ,[...]

Returni ng Produc ts for Re pair 5 U.S.A. and Canad a 1 800 NET 3Com (1 800 638 3 266) En te rpr is e C ust om er s: 1 800 876 3266 1 408 326 712 0 (no t to ll -free ) Ta b l e 2 Nu mbe rs to C all for A utho rizatio n Country Tel ephone Number Fax Number[...]

6 T ECHNICAL S UPPORT[...]