HP StorageWorks Fabric OS 6.1.x administrator guide (5697-0234, November 2009)

402 Configuring and monitoring FCIP extension services
Modify and delete command options
Command options are available that allow you to modify or delete configured elements.
NOTE: Using the Modify option disrupts traffic on the specified FCIP tunnel for a brief period of time.
Modifying FCIP tunnels
The portCfg fcipTunnel command to modify FCIP tunnels (you must specify at least one characteristic
to modify). The command syntax is as follows:
portcfg fciptunnel [slot/]ge[port] modify tunnel_id [-b comm_rate] [-c 0|1]
[-s 0|1] [-f 0|1]
[-k timeout] [-m time] [-q control_dscp] [-Q data_dscp] [-p control_L2Cos]
[-P data_L2Cos}
[-r retransmissions] [-t 0|1]
Where:
lot The number of a slot in a 4/256 SAN Director or DC Director chassis
that contains an FR4-18i blade. This parameter does not apply to the
stand-alone 400 Multi-protocol Router.
ge0|ge1 The Ethernet port used by the tunnel (ge0 or Ge1).
tunnel_id The tunnel number (0 - 7).
modify The modify option changes the FCIP tunnel configuration options and
parameters.
-b comm_rate New committed traffic rate in Kb/sec on the existing FCIP tunnel.
-c 0|1 Disables (0)/Enables (1) compression on the existing FCIP tunnel.
-s 0|1 SACK ON (1)/SACK OFF (0) on the existing FCIP tunnel.
-f 0|1 Enables (1)/Disables (0) FCIP fastwrite.
-M 0|1 Enables or disables VC QoS mapping.
-t 0|1 Enables (1)/Disables (0) tape pipelining on the existing tunnel. If tape
pipelining is enabled, you must also enable fastwrite.
-k timeout The new keep-alive timeout on the existing FCIP tunnel. A range of valid
values is 8 through 7200 sec. If tape pipelining is enabled, the default
and minimum value is 80 sec.
-m time The new minimum retransmit time for the existing FCIP tunnel. A range
of valid values is 20 through 5000 ms (milliseconds).
-r retransmissions The maximum number of retransmissions on the existing FCIP tunnel. A
range of valid values is 1 through 16. If tape pipelining is enabled, the
number of retransmissions is calculated based on the minimum
retransmit time to ensure that the tunnel does not time out before the
host times out (about 80 sec). If you change this value, the value
specified must be greater than the calculated value.
-q control_dscp The DSCP marking for the FCIP tunnel’s TCP control connection. The
range of valid values is 0 through 63. The default is 0. Before
configuring DSCP settings, determine if the IP network you are using
implements PHB, and consult with the network administrator to
determine the appropriate DSCP values.
-Q data_dscp The DSCP marking for the FCIP tunnel’s TCP data connection. The
range of valid values is 0 through 63. The default is 0. Before
configuring DSCP settings, determine if the IP network you are using
implements PHB, and consult with the network administrator to
determine the appropriate DSCP values.