HP Brocade 8/12c Brocade Fabric OS Command Reference Manual Supporting Fabric - Page 656

22 portCfg modify tunnel_id [arguments] Modifies the properties of an existing FCIP tunnel. This operation disrupts the traffic on the specified FCIP tunnel for a brief period of time. If IPSec is enabled on the FCIP tunnel, the tunnel cannot be modified. To modify the tunnel attributes, you must delete and re-create the tunnel. delete tunnel_id Deletes the specified FCIP tunnel. Optional arguments for fciptunnel create and modify include the following. Tunnel parameters are by default disabled. To change the default (for example, enabling FastWrite) with fciptunnel create, specify the parameter only. To modify any of these parameters with fciptunnel modify, specify the parameter and one of the values in square brackets. -n remote_wwn Specifies the remote-side FC entity WWN. -d description Specifies a descriptor for the FCIP tunnel, for example, "Tunnel 0 to San Jose Office". -c [0|1] Disables (0) or enables (1) compression on the specified tunnel. By default, compression is disabled. -f [0|1] Disables (0) or enables (1) FCIP FastWrite on the specified tunnel. By default, FCIP FastWrite is disabled. -t [0|1] Disables (0) or enables (1) read/write Tape Pipelining on the existing tunnel (requires FCIP FastWrite to be enabled). -k timeout Specifies the keep alive timeout, in seconds. Timeout values are 8 to 7,200. The default is 10. If Tape Piplelining is enabled, the minimum supported value is 80. -M [0|1] Disables (0) or enables (1) default VC QoS mapping on the specified tunnel. By default VC QoS mapping is disabled. There are two ways of prioritizing network traffic over FCIP tunnels: Differentiated Services Code Point (DSCP) and Layer 2 Class of Service (L2CoS). If the -M option is set, the VC on the FCIP outbound frame is mapped to both a DSCP and L2CoS value. These default values can be modified on a per-FCIP tunnel basis with the fciptunnel qosmap option. The -M option can be turned on or off any time. QoS map settings are unaffected by the -M option. -q control-dscp Specifies the DSCP (DiffServ Code Point) marking used for the TCP connection of the FCIP tunnel. This operand is optional. The range is 0 to 63. The default value is 0. -Q data-dscp Specifies the DSCP (DiffServ Code Point) marking used for the data TCP connection of the FCIP tunnel. This operand is optional. The range is 0 to 63. The default value is 0. -m time Specifies the minimum retransmit time, in milliseconds. The range is 20ms to 5000ms; the default value is 100ms. 622 Fabric OS Command Reference 53-1001764-01