Nexus VPC Trunk Interfaces

[uni1389]

Hello ,  am using nexus 3k with VPC pair. I need your recommendations , if I configure vpc 100 for server with trunk interfaces.

what should be the spanning-tree port type will be used if i have following cases. the sample configuration is mentioned below:-

1. Access Switches(with Trunk interface)

2. Server with single vlan 

3. Servers with mutiple VLANs( 4 ports as trunk port channel)

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show run interface port-channel 50
interface port-channel50
switchport mode trunk
spanning-tree port type edge trunk
vpc 50

show run interface ethernet 1/4-8
interface Ethernet1/4
switchport mode trunk
spanning-tree port type edge trunk
channel-group 50 mode active

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[Kasun Bandara]

@uni1389 hi, as you shared in the config 'spanning-tree port type edge trunk' is suitable where your port is connected to server where port mode also in trunk mode. this is not recommended if the port is connected to another switch.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/6-x/interfaces/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_Interfaces_Configuration_Guide/b_Cisco_Nexus_9000_Series_NX-OS_Interfaces_Configuration_Guide_chapter_0110.html