Brocade Fabric OS FCIP Administrator's Guide v7.1.0 (53-1002748-01, March 2013)

44 Fabric OS FCIP Administrator’s Guide
53-1002748-01
Configuration steps
2
.
TABLE 7 Tunnel options
Option Arguments Disruptive Description
Compression Short option: -c
Long option: --compression
Operands: 0|1|2|3|4|
Yes Enables compression on an FCIP tunnel.
Compression is set by the portCfg
fciptunnel create or modify command, and
applies to traffic over all circuits in the
tunnel. Compression cannot be set or
modified by the portCfg fcipcircuit create
or modify command.
The argument values have the following
meanings.
0 - Disables compression
1 - Enables Standard compression mode
2 - Enables Moderate compression mode
3 - Enables Aggressive compression mode
4 - Enables Auto compression mode
For a description of the compression
modes, refer to “Compression options” on
page 29.
FCIP Fastwrite Short option: -f
Long option: --fast-write
Operands (modify only): 0|1
• Create behavior: No
operands required. FCIP
Fastwrite enabled If
specified on create.
• Modify behavior:
Requires operands.
Yes Disables or enables FCIP Fastwrite. A value
of 1 enables FCIP Fastwrite. A value of 0
disables FCIP Fastwrite. FCIP Fastwrite is
initially disabled, and must be enabled to
take effect.
OSTP Short option: -t
Long option: --tape-pipelining
Operands (modify only):
0|1|2
• Create behavior:
Operands not required.
OSIP enabled when
specified on create.
• Modify behavior:
Requires operands.
Yes Disables or enables tape OSTP. A value of
1 enables OSTP. A value of 0 disables
OSTP. OSTP is initially disabled. Both FCIP
Fastwrite and OSTP must be enabled if you
want to implement OSTP, as described in
“Open Systems Tape Pipelining” on
page 32.
The argument values have the following
meanings.
0 - OSTP Disabled
1 - OSTP Read/Write Enabled
2 - OSTP Write Enabled
QoS Priority Percentages Short option: -q high, med,
low
Long option: -qos high, med,
low or - -qos- high, - -qos-med,
- -qos--low
Operands: Percentage. Whole
values from 10-80 (total 100).
Yes Sets Quality of Service (QoS) priority
percentages to different values from
default values of 50% for QoS high, 30%
for QoS medium, and 20% for QoS low.
Priorities are enforced only when there is
congestion on the network. If there is no
congestion, all traffic is handled at the
same priority. For more information on QoS
and setting values, refer to “PP-TCP-QoS
priorities over an FCIP trunk” on page 23.