Orphan device in vPC domain

[anderson327]

Hi community,

I have a doubt with the next:

I have a topology with a vPC domain, two switches Nexus in core layer and 4 nexus in access layer. Additionally, I have a switch catalyst that I need to keep in the topology connected to a trunk to one of the access layer nexus. Does this switch catalyst under its condition as an orphan device require any specific configuration in yours ports to establish the trunk with the nexus?

Regards

[Julio E. Moisa · Accepted solution]

Hi Anderson

Yes you have to configure LAG on the Nexus, between the Nexus you need VCP and LAG on the catalyst switch to make it works. 

For example:

Nexus

interface e100/1/10

channel-group 2 mode on

no shutdown

int po 2

switchport mode trunk

vpc 2   <--------- used between the Nexus only.

speed 1000

no shutdown

**Similar on Nexus 2. 

CATALYST SWITCH

interface g1/1/1

channel-group 2 mode on

switchport mode trunk

no shut

int po2

switchport mode trunk

no shut

**The same for the interface connected to Nexus 2.

Hope it answered the question.

Regards.