Nortel Networks WEB OS 212777 - Manual (Page 460)

Web OS 10.0 Application Guide
460 n Chapter 17: Bandwidth Management
212777-A, February 2002
Preferential Services Examples
BWM can be used to provide preferential treatment to certain traffic, based on source IP
blocks, applications, URL paths, or cookies. You may find it useful to configure higher policy
rate limits for specific sites, for example, those used for e-commerce.
Web Site Preference Example
In the following example, there are two Web sites, “A.com” and “B.com.” BWM is configured
to give preference to traffic sent to Web site “B.com:”
1. Configure the switch as you normally would for SLB. Configuration includes the follow-
ing tasks:
n
Assign an IP address to each of the real servers in the server pool.
n
Define an IP interface on the switch.
n
Define each real server.
n
Define a real server group.
n
Define a virtual server.
n
Define the port configuration.
For more information about SLB configuration, refer to “Server Load Balancing” on page 117 .
N OTE – Ensure BWM is enabled on the switch ( /cfg/bwm/on ).
2. Select the first bandwidth policy.
Each policy must have a number from 1 to 64.
3. Set the hard, soft, and reserved rate limits for the bandwidth policy in Mbps.
4. On the switch, select a BWM contract and name the contract.
Each contract must have a unique number from 1 to 256.
>> # /cfg/bwm/pol 1 (Select BWM policy 1)
>> Policy 1# hard 10 (Set “never exceed” rate)
>> Policy 1# soft 8 (Set desired bandwidth rate)
>> Policy 1# resv 5 (Set committed information rate)
>> Policy 1# /cfg/bwm/cont 1 (Select BWM Contract 1)
>> BWM Contract 1# name a.com (Assign contract name “a.com”)