Multiple Subnets and HSRP Standby Groups, Issue, Stuck in INIT

ritsonr · ‎11-25-2010

Hi Guys,

Strange one, i have configured a secondary subnet on a dot1q subinterface to allow for expansion. I created a secondary ip address on both interfaces, then configured another standby group for this subnet, something like this:

R1:

interface GigabitEthernet0/0.1
ip address 10.10.10.2 255.255.254.0
ip address 192.168.1.2 255.255.255.0 secondary
standby 1 ip 10.10.10.1
standby 1 priority 130
standby 1 preempt
standby 2 ip 192.168.1.1
standby 2 priority 130
standby 2 preempt

R:

interface GigabitEthernet0/0.1
ip address 10.10.10.3 255.255.254.0
ip address 192.168.1.3 255.255.255.0 secondary
standby 1 ip 10.10.10.1
standby 1 preempt
standby 2 ip 192.168.1.1
standby 2 preempt

When i configured this the second subnet appeared in a show stand and was active/standby as expected, then about 2 minutes later both sides went to "init" and stayed there. I could still ping between the two secondary interface addresses.

Has anyone seen this before? I cant find any bugs to speak of.

R1&R2: 2851 12.4(6)T5

Thanks,

Rich

lgijssel · ‎11-25-2010

Please check the document below:

http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094afd.shtml#top6

According to this, it could be a bug (CSCdp24680) but I am unsure.

I noticed that you are using a secondary interface on a subinterface and this might be a situation for which hsrp is not supported.

For a test, you could configure a third group on the subinterface (10.10.10.0 /23) and see if that runs into identical problems.

regards,

Leo