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Nortel Networks WEB OS 212777 User Manual

Page 467

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Web OS 10.0 Application Guide

Chapter 17: Bandwidth Management

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467

212777-A, February 2002

Scenario 2: In this scenario, the Web site has multiple virtual server IP addresses, and the
same user classification or multiple sites use the same string name. In this scenario, there are
two Virtual IP (VIP) addresses: 172.17.1.1 and 172.17.1.2. Both the virtual servers and sites
have first class and business class customers, with different bandwidth allocations, as shown in

Figure 17-7 on page 467

.

Figure 17-7 Cookie-Based Preferential Services

The configuration to support this scenario is similar to Scenario 1. Note the following:

1.

Configure the string and assign contracts for the strings and services.

2.

If the same string is used by more than one service, and you want to allocate a certain
percentage of bandwidth to a user class for this service on the virtual server, then define a
rule using the

urlcont

command:

N

OTE

When assigning

/cfg/slb/virt 1/service 80/urlcont

(contract 1) and

/cfg/slb/layer7/lb/cont

(contract 2) to the same URL,

urlcont

will override

contract 2, even if contract 2 has higher precedence.

>> # /cfg/slb/virt 1/service 80/urlcont