Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Multi-layer vPC

Hi,

you find attached my network architecture with 2 Nexus 7010 on core layer and 2 Nexus 5020 on distribution layer, each one with 1 N2148T fabric extender switch. PC-1 is connected to one N2148T, PC-2 is connected to the other N2148T.

PC-1 and PC-2 are on the same VLAN X.

When every link is up, PC-1 is able to ping PC-2.

If I shutdwon the Port-channel 10 between N5K-1 and N5K-2, PC-1 is no more able to ping PC-2. In the output of 'show spanning-tree vlan X' command issued on both Nexus 7010 I see Port-channel 11 moving from forwarding to blocking states and back to forwarding state every few seconds.

What's wrong on my architecture?

Regards

Stefano

Everyone's tags (1)
1095
Views
0
Helpful
0
Replies
CreatePlease to create content