Cisco MDS 9000 Series Command Reference

Send documentation comments to mdsfeedback-doc@cisco.com
23-36
Cisco MDS 9000 Family Command Reference
OL-8413-07, Cisco MDS SAN-OS Release 3.x
Chapter 23 T Commands
tcp sack-enable
tcp sack-enable
To enable selective acknowledgment (SACK) to overcome the limitations of multiple lost packets during
a TCP transmission, use the tcp sack-enable command. Use the no form of this command to disable this
feature or revert to its factory defaults.
tcp sack-enable
no tcp sack-enable
Syntax Description This command has no arguments or keywords.
Defaults Enabled
Command Modes FCIP profile configuration submode.
Command History
Usage Guidelines The receiving TCP sends back SACK advertisements to the sender. The sender can then retransmit only
the missing data segments.
Examples The following example configures a FCIP profile:
switch# config terminal
switch(config)# fcip profile 5
switch(config-profile)#
The following example enables the SACK mechanism on the switch:
switch(config-profile)# tcp sack-enable
Related Commands
Release Modification
1.1(1) This command was introduced.
Command Description
fcip profile Configures FCIP profile parameters.
show fcip profile Displays FCIP profile information.

Cisco MDS 9000 Series Specifications

General

Brand	Cisco
Model	MDS 9000 Series
Category	Switch
Language	English