switch 3560 uplink to 5548 in vpc

[FedeSaraullo]

Hello everyone! I have a doubt about if it is possible to connect a 3560 switch to two 5548 nexus in vpc mode. I suppose that i have to configure a portchannel on the catalyst, i haven´t found this topology with this switch, only with the 3850 or 3650.

Thanks in advance!

[Mark Malone · Accepted solution]

yes its the same , the 3560 just needs to be standard po and the po on the nexus switches needs to be in vpc mode ,example below , same for all catalyst access switches once they support etherchannel

On both nexus switches

interface port-channel15
description VPC 15 xxxxx
switchport mode trunk
no lacp suspend-individual
switchport trunk allowed vlan 2,10-11,17-18,20,28,31,33-34,36-39,48,50,64-65,72,74,76,78,80,105
logging event port link-status
logging event port trunk-status
vpc 15

interface Ethernet1/22
description xxxxxx
switchport trunk allowed vlan 2,10-11,17-18,20,28,31,33-34,36-39,48,50,64-65,72,74,76,78,80,105
channel-group 15 mode active

Then on 3560 just normal PO

interface port-channel15
description xxxxx
switchport mode trunk
switchport trunk allowed vlan 2,10-11,17-18,20,28,31,33-34,36-39,48,50,64-65,72,74,76,78,80,105
logging event port link-status
logging event port trunk-status

[FedeSaraullo]

Thanks Mark! You have been very kind.
Bye!