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Catalyst 6000 Family Content Switching Module Installation and Configuration Note
78-11631-02 Rev. A0
Configuration Examples
Note Set the server’s default routes to the CSM’s IP address (192.158.39.10).
Fault-Tolerant Configuration
This section describes a fault-tolerant configuration. In this configuration, two separate Catalyst 6000
family chassis each contain a CSM.
Note You can create a fault-tolerant configuration in either the secure (router) mode or nonsecure (bridge)
mode.
In the secure (router) mode, the client- and server-side VLANs provide the fault-tolerant (redundant)
connection paths between the CSM and the routers on the client side and the servers on the server side.
In a redundant configuration, two CSMs perform primary and secondary roles. Each CSM contains the
same VLAN, IP, virtual server, server pool, and real server information. From the client-side and
server-side networks, each CSM is configured identically. The network sees the fault-tolerant
configuration as a single CSM.
Configuring fault-tolerance requires the following:
•Two CSMs that are installed in the Catalyst 6000 family chassis.
•Identically configured CSMs. One CSM is configured as the primary; the other is configured as the
secondary.
•Each CSM connected to the same client- and server-side VLANs.
•Communication between the CSMs is provided by a shared private VLAN.
•A network that sees the redundant CSMs as a single entity.
•With Cisco IOS Release 12.1(8)E and later, you must configure Quality of Service (QoS) on each
CSM in the fault-tolerant pair.
Figure 11 shows the QoS configuration topology.
Step9 Router(config)# ip slb vlan 3 server Create the server-side VLAN 3 and enter the SLB
VLAN mode.
Step1 0 Router(config-slb-vlan-server)# ip addr
192.158.39.10 255.255.255.0
Assign the CSM IP address on VLAN 3.
Step1 1 Router(config-slb-vlan-server)# exit Exit the submode.
Step1 2 Router(config)# ip slb vserver VIP1 Create a virtual server and enter the SLB vserver
mode.
Step1 3 Router(config-slb-vserver)# virtual
192.158.38.30 tcp www
Create a virtual IP address.
Step1 4 Router(config-slb-vserver)# serverfarm
farm1
Associate the virtual server with the server farm.
Note This step assumes that the server farm has
already been configured. See the “Configuring
Server Farms” section on page 24.
1. Enter the exit co mmand to leave a mode or submode. Enter the end command to return to the menu’s top level.
2. The no form of this command restores the defaults.
Command Purpose