Instruction/ maintenance manual of the product 3C16120 3Com
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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.
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 .
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 Cha.
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 Retur.
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 .
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.
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 .
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 .
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 an.
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.
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 ve.
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.
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.
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.
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 .
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.
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.
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 fo.
6 T ECHNICAL S UPPORT.
An important point after buying a device 3Com 3C16120 (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 3C16120 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 3C16120 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3Com 3C16120 you will learn all the available features of the product, as well as information on its operation. The information that you get 3Com 3C16120 will certainly help you make a decision on the purchase.
If you already are a holder of 3Com 3C16120, 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 3C16120.
However, one of the most important roles played by the user manual is to help in solving problems with 3Com 3C16120. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3Com 3C16120 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
