Configure Minimum Link Count on Port Channel

You can configure minimum number of link on a port channel. You can provide an optional "min-link-count" for each XCO port channel when you create or update a port channel.

About this task

Follow this procedure to configure minimum link count on a port channel.

Default value of minimum link count (min-link-count) for a port-channel is 1, which is equal to the SLX default value. When you update the min-link-count attribute, XCO validates the port count on port channel member and minimum link count on each device.

Note

Note

During upgrade from EFA 2.5.5 to the above versions of EFA, the min-link-count for the port-channels is set to the default value 1.

  • Empty port channel: EFA 2.5.5 and above does not support empty port channel. Therefore, during upgrade from EFA 2.5.5 to the above versions of EFA, all the empty port channels are marked with “delete-pending” state.
  • Non-empty port channel: During upgrade from EFA 2.5.5 to the above versions of EFA, all the non-empty port channels get configured with the default value (1) of min-link-count, and displayed in the efa tenant po show command output.
  • Single Homed to Dual Homed port channel conversion is not allowed in EFA 2.5.5 and above.

Procedure

  1. To configure minimum link count when you create a port channel, run the following command:
    efa tenant po create --name <po-name> --tenant <tenant-name> --description <po-description> 
       --speed <100Mbps|1Gbps|10Gbps|25Gbps|40Gbps|100Gbps> --negotiation <active|passive|static> 
       --port <list-of-po-members> --min-link-count <min-link-count> 
       --number <po-number> --lacp-timeout <short|long>
    
  2. To configure minimum link count when you update a port channel, run the following command:
    efa tenant po update --name <po-name> --tenant <tenant-name> 
        --operation <port-add|port-delete|lacp-timeout|description|min-link-count>
        --port <list-of-po-members> --lacp-timeout string <short|long> --min-link-count <min-link-count> 
        --description <po-description>
    

    The following example configures minimum link count during port channel create and update operations:

    efa tenant po create --name ten1po1 --tenant ten1 --port 10.20.246.15[0/1-2],10.20.246.16[0/1-2] 
    --speed 10Gbps --negotiation active --description tenant1po1 --min-link-count 2
    
    efa tenant po create --name ten1po2 --tenant ten1 --port 10.20.246.15[0/3],10.20.246.16[0/3] 
    --speed 10Gbps --negotiation active 
    
    efa tenant po update --name ten1po1 --tenant ten1 --operation port-delete --port 
    10.20.246.15[0/1],10.20.246.16[0/1] --min-link-count 1
    
    efa tenant po update --name ten1po1 --tenant ten1 --operation port-add --port 
    10.20.246.15[0/1],10.20.246.16[0/1] --min-link-count 2
    
    efa tenant po update --name ten1po1 --tenant ten1 --operation min-link-count --min-link-count 1
    
    efa tenant po update --name ten1po1 --tenant ten1 --operation min-link-count --min-link-count 2
    
    efa tenant po show
    +-------+------+---+------+-----------+--------+-------+--------------------+-----------+-----------+-----------+
    | Name  |Tenant|ID |Speed |Negotiation|Min Link| Lacp  |       Ports        |  State    | Dev State | App State |
    |       |      |   |      |           | Count  |Timeout|                    |           |           |           |
    +-------+------+---+------+-----------+--------+-------+--------------------+-----------+-----------+-----------+
    |ten1po1| ten1 | 1 |10Gbps|  active   |   2    | long  |10.20.246.15[0/1-2] |po-created |provisioned|cfg-in-sync|
    |       |      |   |      |           |        |       |10.20.246.16[0/1-2] |           |           |           |
    +-------+------+---+------+-----------+--------+-------+--------------------+-----------+-----------+-----------+
    |ten1po2| ten1 | 2 |10Gbps|  active   |   1    | long  | 10.20.246.15[0/3]  |po-created |provisioned|cfg-in-sync|
    |       |      |   |      |           |        |       | 10.20.246.16[0/3]  |           |           |           |
    +-------+------+---+------+-----------+--------+-------+--------------------+-----------+-----------+-----------+