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ACI fabric L3OUT interface is pingable but no OSPF hello recieved from it.

atcapaev
Cisco Employee
Cisco Employee

 Hello Experts.

 

I have a pretty obscure issue with ACI L3out configuration.

I have configured an OSPF on a routed interface and attached to the LEAF 101 inteface 1/1.

 

I connected a Nexus switch to the interface 1/1.

 

I can ping the interface IP address from the Nexus switch. However, the OSPF session has never formed.

In the debus I see that Nexus sends OSPF hello packets but does not recieve them from the leaf.

 

I connected to the LEAF and issued show ip ospf interfcae vrf all and see that the interfcae was added to OSPF but stay in the wait state.

 

May I ask you if any of you experienced the same issue? To me it looks like the leaf might be dropping such packets.

But, once again, the ping works to the IP address which I specified in the OPSF L3OUT configuration.

 

Any suggestion on what I am missing or what to check will be highly appriciated.

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