Nexus 1000v Port-Channel Best Practices

[CSCO10235163]

Hi all,

does anyone know if it's possible creating a port channel mixing fiber port with copper one?

With Catalyst series I know it is, but with Nexus I'm trying to create a channel group aggregating port Eth1/48 (10Gb copper) with Eth1/52 (fiber with CVR for 10G), but this is what it returns:

NX_BF1_Pri(config-if)# channel-group 105 mode active
command failed: port not compatible:[Port Type]
** You can use force option to override the port's parameters
** (e.g. "channel-group X force")
** Use "show port-channel compatibility-parameters" to get more information on failure

NX_BF1_Pri# sh port-channel compatibility-parameters | b "Port Type"
* Port Type

Members must be all server or all fabric facing ports.

Thanks a lot

Chiara

[Wes Austin]

Can you provide a 'show run' and 'show interface ethx/y' from each of those interfaces?

Anything in the 'show logging log' when you attempt to create this?

[Wes Austin · Accepted solution]

It looks like this is a hardware limitation. Can you confirm the switch model you are using....it does not appear to be a 1000v?

You cannot create a port-channel using ports from different ASIC.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/ale_ports/b_Limitations_for_ALE_Uplink_Ports_on_Cisco_Nexus_9000_Series_Switches.html

Port channels cannot contain both ALE and Network Forwarding Engine (NFE) members.

[CSCO10235163]

Sorry to be late in giving feedback.
I confirm that on Nexus 9300-TX channeling between ports of different media is not possible and this is what the system returns:

NX_BF1_Pri(config-if)# channel-group 105 force mode active
command failed: port not compatible:[Port Type]
** You can use force option to override the port's parameters
** (e.g. "channel-group X force")
** Use "show port-channel compatibility-parameters" to get more information on failure

NX_BF1_Pri# sh port-channel compatibility-parameters | b "Port Type"
* Port Type

Members must be all server or all fabric facing ports.