Brocade Fabric OS Command Reference (Supporting Fabric OS v7.3.0) - Manual (Page 739)

Fabric OS Command Reference 709
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portCfg
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-l | --legacy [disable | enable]
In Fabric OS v7.0.0, the connection process for FCIP tunnels has changed in
ways that make it incompatible with earlier firmware versions. Specifying the
--legacy allows connection to IPsec-configured tunnels that use pre-Fabric
OS v7.0.0 firmware versions. You enable or disable this option per tunnel.
This option is a disruptive modify request that causes the tunnel to bounce.
The command prompts for confirmation with an appropriate message. This
operand is supported on the Brocade switch 7800 and FX8-24 blade only.
-q | --qos-bw-ratio high,med,low | default
Sets QoS percentages for all QoS priorities. The default values are 50%
(high), 30% (medium), and 20% (low). Each priority can have a minimum of
10%, the high must be greater than or equal to the medium, and the medium
must be greater than or equal to the low. The sum of percentages must equal
100%. Both ends of the tunnel must have the same QoS priority settings and
the switches must run Fabric OS v7.0.0. or later.
-F | --ficon [disable | enable]
Enables or disables FICON emulation on the specified FCIP tunnel. Optional
FICON arguments for fciptunnel create allow you to control specific
features. Use the [0|1] options only with fciptunnel modify.
--ficon-tera-read [disable | enable]
Enables or disables FICON Read Emulation for a Teradata server on the
specified FCIP tunnel.
--ficon-tera-write [disable | enable]
Enables or disables FICON Write Emulation for a Teradata server on the
specified FCIP tunnel.
--ficon-xrc [disable | enable]
Enables or disables FICON XRC emulation. FICON XRC Emulation allows
XRC (IBM eXtendedRemote Copy, also known as IBM z/OS Global Mirroring)
to operate effectively at extended distances.
--ficon-tape-write [disable | enable]
Enables or disables FICON Tape Write Pipelining. This feature improves the
performance of certain applications when writing to tape over extended
distances.
--ficon-tape-read [disable | enable]
Enables or disables FICON Tape Read Pipelining. This feature improves
performance for certain applications when reading from FICON tape over
extended distances.
--ficon-tin-tir [disable | enable]
Enables or disables FICON TIN/TIR emulation. This feature enhances
recovery when a TIN/TIR exchange occurs as part of a channel recovery
operation during tape emulation. This feature is enabled by default
(recommended setting).
--ficon-dvcack [disable | enable]
Enables or disables FICON Device Level Acknowledgement emulation. This
feature is applicable to both FICON Disk and Tape configurations. The
feature removes one network round trip for exchanges that end with a Device
Level Acknowledgement frame from the device. This feature is enabled by
default (recommended setting).