Using Failover; Understanding Failover - Cisco Catalyst 6500 Series Configuration Manual

Using Failover

This chapter describes the Firewall Services Module (FWSM) failover feature, which allows a secondary
FWSM to take over the functionality of a failed FWSM. This chapter includes the following sections:
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In this chapter, the term "standby" signifies the redundant module in standby mode.
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Understanding Failover

This section describes how failover works and includes the following sections:
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OL-6392-01
Understanding Failover, page 15-1
Configuring Failover, page 15-15
Verifying the Failover Configuration, page 15-19
Forcing Failover, page 15-23
Disabling Failover, page 15-23
Monitoring Failover, page 15-23
Frequently Asked Failover Questions, page 15-24
Failover Configuration Example, page 15-27
"Configuring the Switch for Failover" section on page 2-11
Failover Overview, page 15-2
Regular and Stateful Failover, page 15-2
Failover and State Links, page 15-3
Module Placement, page 15-4
Transparent Firewall Requirements, page 15-9
Primary/Secondary Status and Active/Standby Status, page 15-10
Configuration Replication, page 15-10
Failover Triggers, page 15-12
Failover Actions, page 15-12
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide
C H A P T E R
to configure the switch for failover.
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