Juniper JUNOSE 11.1.X - COMMAND REFERENCE N TO Z 4-6-2010 Command Reference Manual page 1318

JUNOSe 11.1.x Command Reference Guide N to Z
tcp mss
[ ip ] tcp mss [ vrf vrfName ] mssValue
Syntax
no [ ip ] tcp mss [ vrf vrfName ]
Command introduced before JUNOSe Release 7.1.0.
Release Information
ip keyword made optional in JUNOSe Release 7.2.0.
Specifies the MSS value for TCP to use. The no version removes the MSS value, and
Description
the router uses the advertised MSS derived from the MTU of the output interface.
NOTE: The MSS value is equal to the MTU value minus the IP or IPv6 and TCP headers.
This means that the MSS value is generally 40 bytes less than the MTU (for IPv4) and
60 bytes less than the MTU (for IPv6.
Options
Interface Configuration
Mode
1276
tcp mss
ip Optional keyword for use with older scripts
vrfName Name of the VRF; string of 1–32 alphanumeric characters
mssValue Value for MSS that you want TCP to use; in the range 536–65495
bytes for IPv4 and 1280–65495 bytes for IPv6