Configuring Virtual Servers - Cisco catalyst 6500 series Configuration Note

Configuring Virtual Servers, Maps, and Policies
This chapter describes how to configure content switching and contains these sections:
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Configuring Virtual Servers

This section describes how to configure virtual servers and contains these sections:
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When a virtual server is configured with an IP address, it will start replying to ARP requests for that
Note
specific IP, even if it is still out of service. This is important especially when migrating operational
virtual servers from existing devices over to the CSM. Make sure that you never have a virtual server on
the CSM configured with the same IP of another device in the same network.
Virtual servers represent groups of real servers and are associated with real server farms through
policies. Configuring virtual servers requires that you set the attributes of the virtual server specifying
the default server farm (default policy) and that you associate other server farms through a list of
policies. The default server farm (default policy) is used if a request does not match any SLB policy or
if there are no policies associated with the virtual server.
Before you can associate a server farm with the virtual server, you must configure the server farm. For
more information, see the
order in which they are entered in the virtual server configuration. For more information, see the
"Configuring Policies" section on page
You can configure each virtual server with a pending connection timeout to terminate connections
quickly if the switch becomes flooded with traffic. This connection applies to a transaction between the
client and server that has not completed the request and reply process.
In a service provider environment in which different customers are assigned different virtual servers, you
may need to balance the connections to prevent an individual server from absorbing most or even all of
the connection resources on the CSM. You can limit the number of connections going through the CSM
OL-4612-01
Configuring Virtual Servers, page 6-1
Configuring Maps, page 6-8
Configuring Policies, page 6-11
Configuring Generic Header Parsing, page 6-12
Configuring TCP Parameters, page 6-4
Configuring Redirect Virtual Servers, page 6-5
"Configuring Server Farms" section on page
C H A P T E R
6-11.
Catalyst 6500 Series Content Switching Module Configuration Note
6
5-1. Policies are processed in the
6-1