Excessive ARP Requests HSRP

Evan Roggenkamp · ‎04-08-2015

I have a wireshark here of an ASR 9010 which is setting off triggers in a monitoring system for sending a bunch of ARP requests that look like gratuitous ARPS for reasons I can't seem to determine. It is going on like this continually. I am looking for a little assistance in determining why.

router hsrp
interface BVI17201
address-family ipv4
   hsrp 1
    preempt
    priority 100
    address 172.16.1.1
   !
!
!
interface BVI17208
address-family ipv4
   hsrp 1
    preempt
    priority 100
    address 172.16.8.1
   !
!
!
!

BVI17201 is up, line protocol is up
Interface state transitions: 1
Hardware is Bridge-Group Virtual Interface, address is a80c.0d30.3eb0

BVI17208 is up, line protocol is up
Interface state transitions: 1
Hardware is Bridge-Group Virtual Interface, address is a80c.0d30.3eb0

router hsrp
interface BVI17201
address-family ipv4
   hsrp 1
    preempt
    priority 90
    address 172.16.1.1
   !
!
!
interface BVI17208
address-family ipv4
   hsrp 1
    preempt
    priority 90
    address 172.16.8.1
   !
!
!
!

BVI17201 is up, line protocol is up
Interface state transitions: 1
Hardware is Bridge-Group Virtual Interface, address is 6c9c.ed10.27b8

Wed Apr 8 19:36:45.708 UTC
BVI17208 is up, line protocol is up
Interface state transitions: 1
Hardware is Bridge-Group Virtual Interface, address is 6c9c.ed10.27b8

xthuijs · ‎04-09-2015

hsrp would send grat arps for its vip, and it should there is a standard timer on that with some jitter to keep informing the switches of where the mac is found.

xander