Cisco Catalyst 6500 Series Configuration Note

6-5
Catalyst 6500 Series Content Switching Module Configuration Note
OL-4612-01
Chapter 6 Configuring Virtual Servers, Maps, and Policies
Configuring Virtual Servers
To configure TCP splicing, perform this task:
Configuring Redirect Virtual Servers
The redirect-vserver command is a server farm submode command that allows you to configure virtual
servers dedicated to real servers. This mapping provides connection persistence, which maintains
connections from clients to real servers across TCP sessions.
Redirection configuration with the CSM this can be done by creating the initial virtual server which
loadbalances to the redirect serverfarm as either a L4 or L7 (policy based) virtual server, depending on
your preference.
The redirect server farm must have a redirect virtual server configured along with a redirirection string,
as follows:
serverfarm REDIR-FARM
nat server
nat client CLIENTNAT
redirect-vserver REDVS1
webhost relocation 10.86.213.216
inservice
The name given to the redirect virtual server only identifies it and plays no role unless you want the
virtual server to stop issuing redirects if the real server is down. You will need to configure a virtual
address under the redirect virtual server, add a real server, and configure the real server to the redirect
virtual server. When this real server goes down the redirect virtual server goes down and it will stop
sending redirects. For example:
!
serverfarm REDIR-FARM
nat server
nat client CLIENTNAT
redirect-vserver REDVS1
webhost relocation 10.86.213.216
virtual 10.86.213.216 tcp www
inservice
real 10.86.213.193
redirect-vserver REDVS1
inservice
probe TEST-TCP
!
vserver REDVS
virtual 10.86.213.212 tcp www
serverfarm REDIR-FARM
persistent rebalance
Command Purpose
Step 1
Router(config-module-csm)# vserver
virtserver-name
Identifies the virtual server and enters the virtual
server configuration mode
1,2
.
1. Enter the exit command to leave a mode or submode. To return to the Router (config)> top level of the menu, enter the end
command.
2. The no form of this command restores the defaults.
Step 2
Router(config-slb-vserver)# vserver
tcp-protect
Designates the virtual server for TCP splicing
2
.
Step 3
Router(config-slb-vserver)# virtual
100.100.100.100 tcp any service
tcp-termination
Enables TCP splicing.

Cisco Catalyst 6500 Series Specifications

General

Brand	Cisco
Model	Catalyst 6500 Series
Category	Switch
Language	English