Configuring the Content Switching Module

This example shows how to create real servers:

Router(config)# ip slb serverfarm serverfarm

Router(config-slb-sfarm)# real 10.8.0.7

Router(config-slb-real)# inservice

Router(config-slb-sfarm)# real 10.8.0.8

Router(config-slb-real)# inservice

Router(config-slb-sfarm)# real 10.8.0.9

Router(config-slb-real)# inservice

Router(config-slb-sfarm)# real 10.8.0.10

Router(config-slb-real)# inservice

Router(config-slb-real)# end

Router# show ip slb real detail

Router# show ip slb conns detail

Configuring Policies

Policies are access rules that traffic must match when balancing to a server farm. They provide the means for the CSM to balance Layer 7 traffic. Multiple policies can be assigned to one virtual server, creating multiple access rules for that virtual server. When configuring policies, you first specify access rules by URL maps, client-groups, and sticky groups, and then you combine these access rules under a particular policy.

 

 

 

 

Note

 

You must associate policies with one server farm. A policy that does not have an associated server

 

 

 

 

 

 

 

farm cannot forward traffic. The server farm associated with a policy receives all the requests that

 

 

 

 

 

 

 

match that policy.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When the CSM is able to match policies, it selects the policy that appears first in the policy list. Policies

 

 

 

 

 

 

 

are located in the policy list in the sequence in which they were bound to the virtual server. You can

 

 

 

 

 

 

 

reorder the policies in the list by removing policies and reentering them in the correct order. Enter the

 

 

 

 

 

 

 

no slb-policypolicy name and the slb-policypolicy name commands in the ip slb vserver submode to

 

 

 

 

 

 

 

remove and enter policies.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Caution

 

When changing the policies associated with a vserver, you must take out and put back the vserver in

 

 

 

 

 

 

 

service to reflect the changes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To configure load-balancing policies, perform this task:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command

Purpose

 

 

 

 

Step 1

 

 

 

 

 

 

 

Router(config)# ip slb policy policy-name

Create the policy and enter the policy submode

 

 

 

 

 

 

 

 

to configure the policy attributes1.

 

 

 

 

 

Step 2

Router(config-slb-policy)# url-map

Configure a list of URLs with a policy2. You

 

 

 

 

 

 

url-map-name

must have previously created and configured the

 

 

 

 

 

 

 

 

URL maps and cookie maps with the ip slb map

 

 

 

 

 

 

 

 

command. See the “Configuring Maps” section

 

 

 

 

 

 

 

 

on page 27.

 

 

 

 

 

 

 

 

 

 

 

 

Step 3

Router(config-slb-policy)# cookie-map

Configure a list of cookies with a policy2.

 

 

 

 

 

 

cookie-map-name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Step 4

Router(config-slb-policy)# sticky-group

Associate this policy to a specific sticky group2.

 

 

 

 

 

 

group-id

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Catalyst 6000 Family Content Switching Module Installation and Configuration Note

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

78-11631-02 Rev. A0

 

 

 

 

 

 

 

 

 

 

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Cisco Systems 6000 manual Configuring Policies