CDRouter Support

mssClampingValue

testvar version 10.7

Value Type

decimal

Also-Accepted Values

default

Minimum Value

64

Maximum Value

1500

Default Value

default

Description

This parameter specifies the expected TCP MSS clamping value, if supported by the DUT. If this parameter is set to the keyword default, CDRouter will automatically compute the expected MSS based on the LAN MTU setting.

Note that in some cases it may be necessary to adjust the expected MSS clamping value. Some DUTs use MSS clamping to modify the TCP MSS option when traffic is routed over WAN interfaces with MTUs smaller than the LAN MTU (such as when PPPoE is used as the WAN connection mode). DUTs may also modify the MSS value when TCP sessions are routed over VPN tunnels.

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