Cisco ASR 9000 Series Configuration Manual page 243

Configuring Subscriber Features
Command or Action
Step 5
configure
Example:
RP/0/RSP0/CPU0:router# configure
Step 6 vpdn
Example:
RP/0/RSP0/CPU0:router(config)# vpdn
Step 7 l2tp tcp-mss-adjust max-segment-size
Example:
RP/0/RSP0/CPU0:router(config-vpdn)# l2tp
tcp-mss-adjust 1300
Step 8 Use the commit or end command.
Configuring the TCP MSS Value of TCP Packets: Examples
//Example for configuring the TCP MSS value of TCP packets for a PPPoE PTA subscriber
session:
configure
subscriber
pta tcp mss-adjust 1280
!!
// Example for configuring the TCP MSS value of TCP packets for a PPPoE LAC subscriber
session:
configure
vpdn
l2tp tcp-mss-adjust 1460
!!
OL-28375-03
Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Configuration Guide, Release
Configuring the TCP MSS Value of TCP Packets
Purpose
Enters global configuration mode.
Enables the vpdn configuration mode.
Sets the MSS value of TCP packets going through a Cisco ASR
9000 Series Router for a LAC subscriber. The TCP MSS Adjust
maximum segment size ranges from 1280 to 1460 (in bytes).
commit—Saves the configuration changes and remains within
the configuration session.
end—Prompts user to take one of these actions:
• Yes— Saves configuration changes and exits the
configuration session.
• No—Exits the configuration session without committing
the configuration changes.
• Cancel—Remains in the configuration mode, without
committing the configuration changes.
4.3.x
231