Hello Reza & Rajeshkumar,

Juraj Papic · ‎01-08-2016

Hell

I have the following topology.

    9372      9372
     |        |
   NK71=========NK72
     |e1/10       | e1/10
     |                               |
     |                               |
     |e1/10                     | e1/10
    6509       6509

Between the NK7 I have vpc (peer-link / keep-alive), the 2 6509 are stand alone devices no vss, no port-channel.

On both NK7 I have the same vlans configured and Rapid spanning tree and HSRP for the vlans,the same as in the 6509.

The issue is when I force failover for HSRP for vlan 10 in NK71, I check a (show ip arp vlan 10 ) in NK72 and I dont see the Ip address off the group HSRP.

interface Vlan10
no ip redirects
ip address 172.199.66.3/24
no ip arp gratuitous hsrp duplicate
hsrp version 2
hsrp 0
    preempt
    priority 120
    ip 172.99.66.1
   no shutdown
!
!
interface Vlan10
no ip redirects
ip address 172.199.66.2/24
no ip arp gratuitous hsrp duplicate
hsrp version 2
hsrp 0
    preempt
    ip 172.199.66.1
no shutdown

Thanks

Rajeshkumar Gatti · ‎01-08-2016

The expected behavior is that you should be seeing the ARP entry for the group address on N7K2 (active HSRP router). Is this happening for a number of vlans? Do you see any issues when the switch is in this state?

I would recommend opening a TAC case if you want to pursue this. Attach a "show tech arp" in the broken state to the case from both 7Ks.

-Raj

Juraj Papic · ‎01-08-2016

Hello Reza & Rajeshkumar,

The Ip that I dont see when I shutdown the interface vlan is the "172.199.66.1" all of the other IP for this vlan I can see them with the "show ip arp vlan 10".

When I execute this command "show ip arp vlan 10". in the active I can see the "172.199.66.1", after the failover I go to the , Standby that will be the new active, I "show ip arp vlan 10". I dont see the IP "172.199.66.1"

Thanks.

Reza Sharifi · ‎01-08-2016

Hi,

Try "show hsrp group 10" before you do a force fail over and after.

HTH

NK7 / HSRP / Spanning tree