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

Fabric OS FCIP Administrator’s Guide 47
53-1002748-01
Configuration steps
2
Selective
acknowledgement
Short option: -s
Long option: --sack
Operands (modify only): 0|1
• Create behavior:
Operands are not
required. Selective
Acknowledgement will
be disabled when
specified on create.
• Modify behavior:
Requires operands.
Yes Disables or enables selective
acknowledgement. Selective
acknowledgement allows a receiver to
acknowledge multiple lost packets with a
single ACK response. This results in better
performance and faster recovery time.
Selective acknowledgement is initially
turned on. For some applications and in
some situations, you may need to turn
selective acknowledgement off. This
option is used to toggle the option off and
on.
Keep-alive timeout Short option: -k
Long option:
--keepalive-timeout
Operands: ms
Yes The keep-alive timeout in seconds. The
range of valid values is 0.5 through 7,200
seconds, and the default is 10.
Refer to “Keep-alive timeout option” on
page 48 for more information.
Minimum retransmit
time
Short option: -m
Long option:
--min-retrans-time
Operands: ms
No The minimum retransmit time, in
milliseconds. The range of valid values is
20 through 5,000 ms and the default is
100 ms. As a best practice, do not alter
this value unless instructed by technical
support.
Failover/standby metric Short option: -x
Long option: --metric
Operands: 0|1
Yes You can configure standby circuits by
assigning a metric. Refer to “FCIP circuit
failover capabilities” on page 19 for a
description of circuit failover and the use of
standby circuits.
VLAN Tagging Short option: -v
Long option: --vlan-tagging
Operands: vlan-id
Yes Applies VLAN tagging to a circuit and sets a
specific Layer 2 Class of Service (CoS).
Specify a vlan_id. Valid values are from 1
through 4095 and the default is 1. Refer to
“QoS, DSCP, and VLANs” on page 25 for
information about VLAN tagging.
Class of Service (CoS) Class of Service options (use
with VLAN tagging options
and operand):
--l2cos-f-class n
--l2cos-high n
--l2cos-medium n
--l2cos-low n
No Sets the Layer 2 Class Of Service (L2CoS)
options for VLAN tagging. Options are for
F-Class traffic, and high, medium, and low
priority traffic. Specify a value for <n> from
0 through 7 (default is 0).
DSCP Tagging DSCP tag options (use with
VLAN tagging options and
operand):
- -dscp-f-class n
- -dscp-high n
- -dscp-medium n
- -dscp-low
n
No
Applies a DSCP tag to a circuit. Specify a
value for <n> from 0 through 63 (default is
0).
Refer to “QoS, DSCP, and VLANs” on
page 25 for information about DSCP
tagging.
TABLE 8 Circuit options (Continued)
Option Argument Disruptive Description