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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Configuring HSRP and VRRP
Configuring HSRP
HSRP and Switch Stacks
HSRP hello messages are generated by the stack master. If an HSRP-active stack master fails, a flap in
the HSRP active state might occur. This is because HSRP hello messages are not generated while a new
stack master is elected and initialized, and the standby router might become active after the stack master
fails.
Configuring HSRP
• Default HSRP Configuration, page 1-5
• HSRP Configuration Guidelines, page 1-6
• Enabling HSRP, page 1-6
• Configuring HSRP Priority, page 1-8
• Configuring MHSRP, page 1-10
• Configuring HSRP Authentication and Timers, page 1-10
• Enabling HSRP Support for ICMP Redirect Messages, page 1-12
• Configuring HSRP Groups and Clustering, page 1-12
• Troubleshooting HSRP for Mixed Stacks of Catalyst 3750-X, 3750-E and 3750 Switches, page 1-12
Default HSRP Configuration
Table 1-1 Default HSRP Configuration
Feature Default Setting
HSRP version Version 1
HSRP groups None configured
Standby group number 0
Standby MAC address System assigned as: 0000.0c07.acXX, where XX is the HSRP
group number
Standby priority 100
Standby delay 0 (no delay)
Standby track interface priority 10
Standby hello time 3 seconds
Standby holdtime 10 seconds
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