HSRP in cisco

400 pts.
Tags:
Cisco IOS
HSRP
L3 Switches
VLAN
I have L3 core switches, I want to configure HSRP for vlan 30, Please verify my configuration. My active router should be core 3 switch.

Core swith 1

interface Vlan30  description ***Wireless Network Vlan***  ip address 192.168.21.252 255.255.254.0  no ip redirects  no ip unreachables  no ip proxy-arp  standby 30 ip 192.168.21.253  standby 30 priority 110  standby 30 preempt

_____________ core sWitch 2

interface Vlan30  ip address 192.168.21.251 255.255.254.0  no ip redirects  no ip unreachables  no ip proxy-arp  standby 30 ip 192.168.21.253  standby 30 priority 100  standby 30 preempt

______________________Core Switch 3

interface Vlan30  description ***Wireless Network Vlan***  ip address 192.168.21.254 255.255.254.0  no ip redirects  no ip unreachables  no ip proxy-arp  standby 30 ip 192.168.21.253  standby 30 priority 120  standby 30 preempt

 

Answer Wiki

Thanks. We'll let you know when a new response is added.

Your configuration looks fine.

One thing you should consider, is adding a password key, so that only these three devices participate in the HSRP process. It just saves problems later if someone else configures HSRP on other devices in this VLAN.

Another thing you may want to look at is tracking which will change the priority based on some criteria, and is used to then change which device is the active router for HSRP. You can track interfaces, so if the backhaul interface fails, then it lowers the priority, or track routes in the table, if this is important. It depends on your network, and why you need this level of redundancy.

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