Nortel Networks 212777 Network Router User Manual


 
Web OS 10.0 Application Guide
Chapter 17: Bandwidth Management
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:
NOTE 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 <URL path ID> <BW Contract number>