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portchannel between F3 and M3

Hello,

 

Is it Posible to create a port channel between and F3 and M3 Card?

 

I have a 2 Nexus 7702 with a M3 card and the other with and F3 card, so can i bring a portchannel between this 2?

 

Thanks for the help.

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Hi @vivarock12 

Do you refer to have a vPC where one peer is using M3 and the second peer F3?

Or just a port-channel between two Nexus switches one using F3 and the second Nexus (the other side of the Po) using M3?

 

If we are talking about vPC, then the answer is still not. Module type is verified as a consistency check.

If the question is about the second scenario, a port-channel like this:    [M3] =====0====== [F3] , then there is no problem here. You can create port-channels like this. However, you need to be aware of each linecards specific limitations. For example:

With M Series modules and LACP, a vPC peer link supports 16 LACP interfaces: 8 active links and 8 hot standby links. You can configure 16 LACP links on the downstream vPC channel: 8 active links and 8 hot standby links. If you configure the port channels without using LACP, you can have only 8 links in each channel. With F-Series line cards, a vPC peer link and downstream vPC channels support up to 16 active LACP links. You can have 16 links in each channel even if the port channels are not configured using LACP.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/interfaces/config/cisco_nexus7000_interfaces_config_guide_8x/config-vpcs.html#concept_930E50A492784DC3983324FE0737E934

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Collaborator

Hi @vivarock12 

Here is the list of incompatible modules for mixing interfaces in a port-channel:

 

  • You cannot configure the ports from an F1- and an M1-series module in the same port channel because the ports will fail to meet the compatibility requirements.

  • You cannot configure the ports from an M1- and an M2-series module in the same port channel.

  • You cannot configure the ports from an F2e- and an F3-series module in the same port channel because the ports will fail to meet the compatibility requirements.

  • You cannot configure the ports from an F3- and M3-series module in the same port channel because the ports will fail to meet the compatibility requirements.

  • You cannot configure the ports from an F4- and M3-series module in the same port channel because the ports will fail to meet the compatibility requirements.

  • You cannot configure the ports from an F3- and F4-series module in the same port channel because the ports will fail to meet the compatibility requirements.

  • You cannot configure the ports from an M2- and F3/M3/F4-Series Module in the same port channel because the ports will fail to meet the compatibility requirements.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/interfaces/config/cisco_nexus7000_interfaces_config_guide_8x/config-port-channels.html 

 

Stay safe,

Sergiu

 

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Thanks for the reaply @msdaniluk,

 

but the thing is this means that a portchannel cant have menber from this 2 types of cards. for example:

In a 7010 if i try to do a portchannel and m3 and f3 card, i know that i cant do a port channel with port from both card.

 

But those this apply in a port channel 2 nexus 1 with a F3 card and another nexus with a M3 card?

 

Highlighted

Hi @vivarock12 

Do you refer to have a vPC where one peer is using M3 and the second peer F3?

Or just a port-channel between two Nexus switches one using F3 and the second Nexus (the other side of the Po) using M3?

 

If we are talking about vPC, then the answer is still not. Module type is verified as a consistency check.

If the question is about the second scenario, a port-channel like this:    [M3] =====0====== [F3] , then there is no problem here. You can create port-channels like this. However, you need to be aware of each linecards specific limitations. For example:

With M Series modules and LACP, a vPC peer link supports 16 LACP interfaces: 8 active links and 8 hot standby links. You can configure 16 LACP links on the downstream vPC channel: 8 active links and 8 hot standby links. If you configure the port channels without using LACP, you can have only 8 links in each channel. With F-Series line cards, a vPC peer link and downstream vPC channels support up to 16 active LACP links. You can have 16 links in each channel even if the port channels are not configured using LACP.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/interfaces/config/cisco_nexus7000_interfaces_config_guide_8x/config-vpcs.html#concept_930E50A492784DC3983324FE0737E934

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