Dynamic Routing over Nexus 7K VPC

[haitham.jneid]

Hi Experts,

I have the attached topology, the 2 distribution switches are configured for VSS, and I need to configure VPC between N7Ks and distribution switches so all four links are bundled together. is it possible to do this?

is it possible to run OSFP over VPC in my case because I have some routes on the distribution switch and I need to advertise them.

please advise.

thanks,

Haitham Jneid

[Jigar Dave]

Hi Haitham

Actually, you can install one transit switch and connect all 4 switches to that transit switch instead of connecting all 4 switches together.

then, create one transit vlan 192.168.10.0 and configure each switch into that ip.

like, nexus 1 - 192.168.10.10,

nexus 2 - 192.168.10.11,

6800-1 192.168.10.20

6800-2  192.168.10.21

transit-switch - 192.168.10.25

now run ospf across 4 switches and one transit switch.

For distribution switches, add a command into ospf config, redistribute connected subnets so all your connected routes/interfaces will be advertised from dist. switches.

hope this helps.

Thanks

[Vasilii Mikhailovskii]

Hello.

With VPC and VSS you may configure the bundle.

Routng over VPC on Nx 7K is available with a feature called " Layer 3 over vPC for F2E and F3 Modules", that is available for the specific hardware starting from 7.2(0)D1(1) release.

[Richard Burts]

It is good to know that routing over VPC is now available on N7K in some limited fashion. So + 5 for you. It used to be that it was not possible at all. Now for certain hardware and software versions there is some functionality. It is a bit surprising that routing over VPC has not been supported on N7K but was supported on N5K.

HTH

Rick