Port channels on Nexus 7k 10G interfaces LACP if possible

[Steve Coady]

Hello

I need to create a port-channel with (2) 10G interfaces on a Nexus 7010. This port channel

will connect to a Data Domain device. The Data Domain device will bundle 2 10G interfaces and give

it an ip address.

I am not too familiar with Nexus.

The vendor stated they would prefer LACP to round robin.

currently I have the interfaces as follows:

interface Ethernet8/45
description DataDomain EMC
switchport
switchport access vlan 804

spanning-tree port type edge
no shutdown

Can I just add channel-group x on each, lacp active and be done?

[Reza Sharifi · Accepted solution]

Hi,

LACP is the only protocol supported on Nexus series devices

Just add "channel-group 10 mode active" to your physical interfaces.

In this case the portchannel id is 10, but you can use any other number you want.

Once this config is done, go under the Portchannel interface and issue "no sh" to bring up the Portcahnnel interface.

interface Ethernet8/45
description DataDomain EMC
switchport
switchport access vlan 804

channel-group 10 mode active

spanning-tree port type edge
no shutdown

HTH

[Steve Coady]

How does vPC play into this port-channel?

Each port-channel will have (2) 10G interfaces from different Nexus 7k switches.

what will that interface config look like?

[Reza Sharifi]

The Portchannel will have one 10Gig interface to each 7k.  

In order for the VPC to work correctly, the 2 7ks need to be VPCed together also.

You can check that by issuing "sh vpc" on both 7ks.

Can you provide the output of "sh vpc" and "sh run vpc" from both 7ks?

HTH

[Steve Coady]

I see it

 here is what config should look like, i think

PRODUCTION DataDomain device

A-Dist (7k) & B-Dist (7k)
interface Ethernet8/45
description DataDomainProd
switchport
switchport access vlan 804
channel-group 13 mode active
vpc 13
spanning-tree port type edge
no shutdown

A-Dist (7k) & B-Dist (7k)
interface Ethernet8/46
description DataDomainProd
switchport
switchport access vlan 804
channel-group 14 mode active
vpc 14
spanning-tree port type edge
no shutdown

Does this look correct?

[Reza Sharifi]

Looks correct, except the VPC number for both 7ks should be the same, if the 7ks are VPCed together.

[Steve Coady]

Reza

I have (2) separate Data Domain devices 1) Prod  2). DR

I will be configuring (4) port-channels. Each pair of interfaces get's it's own vpn/portchannel #, yes?

[Reza Sharifi]

Yes, if 7ks are 2 different devices and not connected together via a VPC. Then each side get their own Portchannel.

[Steve Coady]

7k's are connected via VPC domain 1

I apologize for any confusion. Does the following look correct?

Switch-A
interface Ethernet8/46
description DataDomainProd
switchport
switchport access vlan 804
channel-group 14 mode active
vpc 14
spanning-tree port type edge
no shutdown

Switch-B

interface Ethernet8/46
description DataDomainProd
switchport
switchport access vlan 804
channel-group 14 mode active
vpc 14
spanning-tree port type edge
no shutdown

[Reza Sharifi]

Yes, the config is correct now.

[Steve Coady]

Reza

I assume the port-channel and the Vpc will automatically be created when I implement the physical interface with this command. Is that a true assumption?

[Steve Coady]

Reza

Thank you for the reply.

[Steve Coady]

Hello

Do I need to do anything with vPC?

[Reza Sharifi · Accepted solution]

Hi Steve,

Yes, since you have 2 Nexus devices, I would put both connections in the same VPC. The same config for both switches:

interface Ethernet8/45
description DataDomain EMC
switchport
switchport access vlan 804

channel-group 10 mode active

spanning-tree port type edge

vpc 10
no shutdown

HTH

[Steve Coady]

vpc 10 where (10) is the vpc domain #?