Dell PowerEdge M520 Manual - Page 18

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Rev 1.00

3.7

Port Commands

Synopsys:

set port test port_number [prbs31 on|off|start|stop]

Description:

Configure test mode on a port. Test mode is used to measure link quality and calibrate link tuning parame-

ters.

• port_number: downlink port number on which to enable / disable test mode

• prbs31: industry-standard pseudo-random binary sequence for link tuning

- prbs31 on: move the port to test mode

- prbs31 start: initalize prbs31 mechanism and start error counting

- prbs31 stop: terminate prbs31 error counting

- prbs31 off: move the port back to operational mode

After "prbs31 on" and before "prbs31 start", configure prbs31 on the remote peer.

Note:

Example:

& set port test 6 prbs31 on

& # enable prbs31 on remote peer now

& set port test 6 prbs31 start

& show port test 6

port 6 prbs31 on: 0 errors

& set port test 6 prbs31 stop

& set port test 6 prbs31 off

Synopsys:

show port link [port_number]

Description:

This command displays detailed port information. If an uplink port number is specified

([port_number]), then the command displays information only for this port; otherwise, the com-

mand displays information for all the ports.

The command displays the following information per port:

• Port number

• Port group identifier and speed: A, B, followed by the configured speed (10G)

• Pass through connection status, may have one of the following values:

down - either uplink or downlink is not connected

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