Configuration Examples
Configuring HSRP
This section provides an overview of a Hot Standby Router Protocol (HSRP) configuration (see Figure 13) and describes how to configure the CSMs with HSRP and CSM failover on the Catalyst 6000 family switches.
HSRP Configuration Overview
The figure shows two Catalyst 6000 switches, Switch 1 and Switch 2, are configured to route from a client-side network (10.100/16) to an internal CSM client network (10.6/16, VLAN 136) through an HSRP gateway (10.100.0.1).
•The client side network is assigned an HSRP Group ID = HSRP ID 2.
•The Internal CSM Client network is assigned an HSRP Group ID = HSRP ID 1.
Note HSRP group 1 must have tracking turned on so that it can track the client network ports on HSRP group 2. When HSRP group 1 detects any changes in the active state of those ports, it mirrors those changes so that both the HSRP primary (Switch 1) and HSRP secondary (Switch 2) share the same knowledge of the network.
In the example configuration, two CSMs (one in Switch 1 and one in Switch 2) are configured to forward traffic between a client -side and a server-side VLAN:
•Client VLAN 136
Note The client VLAN is actually an internal CSM VLAN network; the actual client network is on the other side of the switch.
•Server VLAN 272
The actual servers on the server network (10.5/1) point at the CSM server network through an aliased gateway (10.5.0.1), allowing the servers to run a secure subnet.
In the example configuration, an EtherChannel is set up with trunking enabled, allowing traffic on the internal CSM Client network to travel between the two Catalyst 6000 family switches. The setup is shown in Figure 13.
Note EtherChannel protects against a severed link to the primary switch and a failure in a
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