Set Port Speed

You can manually set the speed of a single port to help determine symbol error generation. The ibportstate command can set the speed to 2.5, 5.0, or 10.0 Gbyte/sec.

• On the management controller, type:

  # ibportstate lid port speed speed

  where:

  • lid is the LID of the node.

  • port is the port of the node.

  • speed is the speed of the port: 1 for 2.5 Gbyte/sec, 2 for 5.0 Gbyte/sec, and 4 for 10.0 Gbyte/sec.

    ---

    Note - Adding speed values enables either speed. For example, speed 7 is 2.5, 5.0, and 10.0 Gbyte/sec.

    ---

  For example:

  # ibportstate 24 8 speed 1
  Initial PortInfo:
  # Port info: Lid 24 port 8
  LinkSpeedEnabled:................2.5 Gbps or 5.0 Gbps or 10.0 Gbps
   
  After PortInfo set:
  # Port info: Lid 24 port 8
  LinkSpeedEnabled:................2.5 Gbps
  # ibportstate 24 8 speed 7
  Initial PortInfo:
  # Port info: Lid 24 port 8
  LinkSpeedEnabled:................2.5 Gbps
  After PortInfo set:
  # Port info: Lid 24 port 8
  LinkSpeedEnabled:................2.5 Gbps or 5.0 Gbps or 10.0 Gbps
  #

Related Information

• Switch Reference, ibportstate command

• Set Link Speed

• Display the Link Status of a Node