HP AJ732A Cisco MDS 9000 Family Command Reference - Cisco MDS SAN-OS Release 3 - Page 1472
tcp sack-enable
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tcp sack-enable Chapter 23 T Commands Send documentation comments to [email protected] 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 Release 1.1(1) Modification This command was introduced. 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 Description Configures FCIP profile parameters. Displays FCIP profile information. 23-40 Cisco MDS 9000 Family Command Reference OL-16217-01, Cisco MDS SAN-OS Release 3.x
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