Fabric OS Administrator's Guide v7.0.0 (53-1002148-02, June 2011)

Fabric OS Administrator’s Guide 43

53-1002148-02

Ports

Enabling a port

1. Connect to the switch and log in using an account with admin permissions.

2. Enter the appropriate command based on the current state of the port and on whether it is

necessary to specify a slot number:

• To enable a port that is disabled, enter the command portEnable portnumber or

portEnable slotnumber/portnumber.

• To enable a port that is persistently disabled, enter the command portCfgPersistentEnable

portnumber or portCfgPersistentEnable slotnumber/portnumber.

If you change port configurations during a switch failover, the ports may become disabled. To

bring the ports online, re-issue the portEnable command after the failover is complete.

Disabling a port

1. Connect to the switch and log in using an account with admin permissions.

2. Enter the appropriate command based on the current state of the port and on whether it is

necessary to specify a slot number:

• To disable a port that is enabled, enter the command portDisable portnumber or

portDisable slotnumber/portnumber.

• To disable a port that is persistently enabled, enter the command

portCfgPersistentDisable portnumber or portCfgPersistentDisable

slotnumber/portnumber.

Port decommissioning

Fabric OS 7.0.0 provides an automated mechanism to remove an E_Port or E_Port trunk port from

use. This feature identifies the target port and communicates the intention to decommission the

port to those systems within the fabric affected by the action. Each affected system can agree or

disagree with the action, and these responses are automatically collected before a port is

decommissioned.

Note that all members of a trunk group must have an equal link cost value in order for any of the

members to be decommissioned. If any member of a trunk group does not have an equal cost,

requests to decommission a trunk member will fail and an error reminding the caller of this

requirement is produced.

Note the following restrictions of port decommissioning:

• The local switch and the remote switch on the other end of the E_Port must both be running

Fabric OS 7.0.0 or later.

• Port decommissioning is not supported on links configured for encryption or compression.

• Port decommissioning is not supported on ports with DWDM, CWDM, or TDM.

• Port decommissioning requires that the lossless feature is enabled on both the local switch

and the remote switch.

Use the portDecom [slot/]port command to begin the decommission process.