Brocade Fabric OS Command Reference Manual v6.2.0 (53-1001186-01, April 2009)

Fabric OS Command Reference 541
53-1001186-01
portCfg
2
-p Control L2 CoS
Specifies the pL2_Class_of_Service/Priority, as defined by IEEE 802.1p,
for the FCIP control connection. Range is 0-7. Default is 0.
-P L2 CoS
Specifies the PL2 Class of Service/Priority, as defined by IEEE 802.1p, for
the FCIP data connection. Range is 0-7. Default is 0.
-bstr Enables Byte Streaming on the specified tunnel. Byte streaming allows
the Brocade switch to communicate with third party WAN optimization
hardware. The WAN optimization hardware connects on the GE ports
configured for FCIP. The TCP Byte Streaming feature is supported only on
the Brocade 7500 or the FR4-18i blade configured for FCIP GE ports.
modify tunnel_id [arguments]
Modifies the properties of the existing FCIP tunnel. This 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 change it, you must delete and
re-create the tunnel.
Optional arguments for fciptunnel modify include:
-b comm_rate Specifies the committed traffic rate on the FCIP tunnel in Kbps. Valid
range is 1,544 to 1,000,000. Specify "0" for an uncommitted tunnel.
Uncommitted tunnels compete for bandwidth. Changing com_rate is
potentially disruptive.
-d description Modifies the tunnel description.
-c 0|1 Disable (0) or enable (1) compression on the existing tunnel.
-f 0|1 Disable (0) or enable (1) Fastwrite on the existing tunnel.
-t 0|1 Disable (0) or enable (1) read/write Tape Pipelining on the existing tunnel
(requires Fastwrite to be enabled).
-k timeout Specifies the keep alive timeout, in seconds, for the existing tunnel. Valid
timeout values are 8 to 7,200; default is 10. If Tape Piplelining is
enabled, minimum value is 80.
-q control_dscp
DSCP (DiffServ Code Point) Marking for a tunnel's TCP control
connection. Valid range is from 0 to 63 (inclusive). Default value is 0.
-Q data_dscp DSCP(DiffServ Code Point) Marking for a tunnel's TCP control connection.
Valid range is from 0 to 63 (inclusive). Default value is 0.
-M Turns on default QoS mapping in the specified tunnel. Default is off.
There are two ways of prioritizing network traffic over FCIP tunnels:
Differentiated Services (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 at anytime. Qosmap settings are unaffected by
the -M option.
-m time Specifies the minimum retransmit time, in milliseconds, for the existing
tunnel. Valid time values are 20 to 5,000; default is 100.