Output of Debug IP Ospf Events --------OSPF Poll Count 7

[mahesh18]

Hi all,

I have enabled IP  SLA and static route on Layer 3 Switch for redundancy.

When i test the connection it uses the static route.

Then when it comes to Primary connection  i did debug ip ospf events.

Now i see one new line in log that i never saw prior to config of IP SLA  and static route .

OSPF: will poll [count 7] interface status for FastEthernet0/11

this goes till OSPF: will poll [count 0] interface status for FastEthernet0/11.

After this DR and BDR is elected.

Can someone tell me why we have this count 7 now ?whats it purpose

why count 7 start from  number 7?

Thanks

MAhesh

[viswamin]

Hi Mahesh,

CAn you pls share the OSPF and IP SLA configs?

- Vijay

[mahesh18]

Hi all,

Seems i found answer to my question -- Here is info from Cisco website

When OSPF is configured on a router, the router interfaces are polled and interfaces that are up are enabled with OSPF. As interfaces become more complex and the amount of interfaces increase, the time for interfaces to come up also increases, and there is a slight chance that OSPF will poll the interface before its state is fully up. This can result in the interface being up, but OSPF not being enabled on it. The default number of times OSPF polls the interfaces has been increased from 0 to 10 in order to avoid this situation.

From

http://www.cisco.com/en/US/tech/tk365/t ... 3f10.shtml

Thanks

mahesh

[Richard Burts]

Mahesh

I am glad that you found the answer to your own question

Thanks for posting to the thread and sharing this information with us. It is something that I do not believe that I knew before.

HTH

Rick