01-02-2014 06:50 AM - edited 03-07-2019 05:20 PM
Hi,
I would like to check on the possible design setup for dynamic routing via ospf for the nexus switch. My setup is as below:
N7K -----------vpc --------- N7K
| |
|(L3 ospf) | (L3 ospf)
6500-----------vss---------6500
Besides having dedicated layer 3 interface/link aggregated (parallel routed ports) ospf between each nexus switch and each 6500 switch; I would like to check if it may be possible to create/have ospf between the N7K via the vpc/virtual peer link(without dedicated link between the N7K)? This is for redundancy in case one of the N7K uplink to the 6500 disconnects/removed such that the other nexus switch may route traffic successfully.
Any suggesstion is appreciated.
Solved! Go to Solution.
01-02-2014 07:31 AM
Hi,
A separate link is preffered, but you don't have to have a separate link for the layer-3 connection between the 7ks. You can use an SVI and use the existing peer link to route between them using OSPF.
HTH
01-02-2014 07:31 AM
Hi,
A separate link is preffered, but you don't have to have a separate link for the layer-3 connection between the 7ks. You can use an SVI and use the existing peer link to route between them using OSPF.
HTH
01-05-2014 06:05 PM
Hi Reza,
Thanks.
05-16-2014 12:45 AM
Hi Reza,
1. do you have document mentioned if i add extra link better than using vPC peer-link.
2. i read if enable OSPF over VPC peer-link and configure peer-gateway, the OSPF will fail ? please correct me
Thanks
09-19-2016 11:06 PM
Golden Rule in VPC : any traffic pass via VPC Peer-Link and send it out to VPC port , this traffic will be dropped.
so if you running OSPF between NKs and 6500 , there is possibility for traffic to pass via Peer link and send it out to VPC ports which cause dropping the traffic.
from your diagram: Switch 6500 connect to NKs as normal ports so these ports called Orphan ports and so the traffic coming form Orphan ports can pass the vpc peer link.
09-22-2016 12:24 AM
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