HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.2 administrator guide (5697-0 - Page 488

2. Enter 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] [-bstr 0|1 TCP Byte Streaming] where: slot ge0|ge1 tunnel_id modify The number of the slot in an HP StorageWorks 4/256 SAN Director, an HP StorageWorks DC SAN Backbone Director or HP StorageWorks DC04 SAN Director Switch enterprise-class platform that contains an FR4-18i blade. This parameter does not apply to the stand-alone HP StorageWorks 400 Multi-Protocol Router. The Ethernet port used by the tunnel (ge0 or ge1). The tunnel number (0 - 7). The modify option changes the FCIP tunnel configuration options and parameters. -b comm_rate The new committed traffic rate in Kbps on the existing FCIP tunnel. -c 0|1 Disables (0) or enables (1) compression on the existing FCIP tunnel. -s 0|1 Disable (0) or enable (1) selective acknowledgement (SACK) on the existing tunnel. -f 0|1 Disables (0) or enables (1) FCIP Fastwrite. -M 0|1 Disables (0) or enables (1) VC QoS mapping. -t 0|1 Disables (0) or enables (1) Tape Pipelining on the existing tunnel. If Tape Pipelining is enabled, you must also enable Fastwrite. -k timeout The keep-alive timeout on the existing FCIP tunnel. The range of valid values is 8 through 7200 seconds. If Tape Pipelining is enabled, the default and minimum value is 80 seconds. -m time The minimum retransmit time for the existing FCIP tunnel. The range of valid values is 20 through 5000 milliseconds. -r retransmissions The maximum number of retransmissions on the existing FCIP tunnel. The 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 (approximately 80 seconds). 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. -p control_L2Cos The PL2_Class_of_Service/Priority, as defined by IEEE 802.1p, for the FCIP control connection. Range is 0-7. Default is 0. 484 Configuring and monitoring FCIP extension services