HSRP issue

[bjornarsb]

Hi,

We have problems with our hsrp failover. We are running HSRP v2 between a nx7k and a 3560.
The configuration is (BGP configuration omitted) :

NX7k:

interface Ethernetx/x
 
  ip address x.x.x.2/x
  no ip arp gratuitous hsrp duplicate
  hsrp version 2
  hsrp 1
    preempt
    priority 110
    timers  5  15
    ip x.x.x.1
  no shutdown

ip route 0.0.0.0/0 Ethernetx/x x.x.x.3 222

3560:

!
interface Vlanx
 ip address x.x.x.3
 standby version 2
 standby 1 ip x.x.x.1
 standby 1 timers 5 15
 standby 1 priority 90
 standby 1 preempt
!

We have to shut down the nx7k interface to make it work, otherwise we get packet drops.

Any idea what could be the issue here?

rgds

bjornarsb

[Reza Sharifi]

Hi,

You have configured preemtion on both devices.  You usually need it on the side with higher priority (7k in this case) can you remove it form the 3560 and test again?  Also can you post the output of "sh hsrp 1 detail" from the 7k?

HTH

[bjornarsb]

Hi,

I will try this next week in a service window.

I forgot to say that its when we shutdown the wan onn the nx7k and the floating static route is active we get this problems.......so it might not be a pure hsrp problem?

# sh hsrp detail
Ethernetx/x - Group 1 (HSRP-V2) (IPv4)
  Local state is Active, priority 110 (Cfged 110), may preempt
    Forwarding threshold(for vPC), lower: 1 upper: 110
  Hellotime 5 sec, holdtime 15 sec
  Next hello sent in 3.132000 sec(s)
  Virtual IP address is x.x.x.1x (Cfged)
  Active router is local
  Standby router is x.x.x.x , priority 90 expires in 12.379000 sec(s)
  Authentication text "x"
  Virtual mac address is x (Default MAC)
  5 state changes, last state change 1d15h
  IP redundancy name is hsrp-Ethx/x-1 (default)