Configuring Hsrp - Cisco WS-C3550-12G Software Configuration Manual

Chapter 23

Configuring HSRP

Figure 23-1 Typical HSRP Configuration
Catalyst 3550 switches
with enhanced multilayer
software images
Stacked
Catalyst 3550 or
2900XL/3500XL
switches
Configuring HSRP
These sections include HSRP configuration information:
•
•
•
•
Note If HSRP is enabled, the switch can recognize 16 additional MAC addresses, each associated with a
set of VLANs or routing interfaces.
In the following procedures, the specified interface must be one of these Layer 3 interfaces:
•
•
78-11194-03
Host B
172.20.130.5
Active
router
172.20.128.1
Si
Router A
172.20.128.32
Host C
Default HSRP Configuration, page 23-4
Enabling HSRP, page 23-4
Configuring HSRP Group Attributes, page 23-6
Configuring HSRP Groups and Clustering, page 23-9
Routed port: a physical port configured as a Layer 3 port by entering the no switchport interface
configuration command.
SVI: a VLAN interface created by using the interface vlan vlan_id global configuration command
and by default a Layer 3 interface.
Virtual
router
172.20.128.3
Si Si
Host A
Catalyst 3550 Multilayer Switch Software Configuration Guide
Configuring HSRP
Standby
router
172.20.128.2
Router B
Stacked
Catalyst 3550 or
2900XL/3500XL
switches
172.20.128.55
23-3