Tcp Sack-Enable - Cisco MDS 9000 series Command Reference Manual

tcp sack-enable

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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.
Syntax Description This command has no arguments or keywords.
Defaults Enabled
Command Modes FCIP profile configuration submode.
Command History Release
1.1(1)
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 Command
fcip profile
show fcip profile
Cisco MDS 9000 Family Command Reference
23-36
tcp sack-enable
no tcp sack-enable
Modification
This command was introduced.
Description
Configures FCIP profile parameters.
Displays FCIP profile information.
Chapter 23 T Commands
OL-8413-07, Cisco MDS SAN-OS Release 3.x