Tunnel Flow-Control - H3C MSR Series Command Reference Manual

Usage guidelines
L2TP uses Attribute Value Pairs (AVPs) to transmit tunnel negotiation parameters, session negotiation
parameters, and user authentication information. This feature can hide sensitive AVP data, such as user
passwords. With this feature enabled, AVP data is encrypted before transmission with the key configured
by using the tunnel password command.
The tunnel avp-hidden command can be configured for L2TP groups in both LAC and LNS modes, but it
does not take effect on L2TP groups in LNS mode.
For this command to take effect, you must enable tunnel authentication by using the tunnel authentication
command.
Examples
# Enable transferring AVP data in hidden mode.
<Sysname> system-view
[Sysname] l2tp-group 1 mode lac
[Sysname-l2tp1] tunnel avp-hidden
Related commands
tunnel authentication
•
tunnel password
•

tunnel flow-control

Use tunnel flow-control to enable the L2TP session flow control function.
Use undo tunnel flow-control to disable the L2TP session flow control function.
Syntax
tunnel flow-control
undo tunnel flow-control
Default
The L2TP session flow control function is disabled.
Views
L2TP group view
Predefined user roles
network-admin
Usage guidelines
The L2TP session flow control function adds sequence numbers to transmitted packets, and uses them to
reorder packets arriving out of order and to detect lost packets.
This function takes effect on both sent and received L2TP data messages. The L2TP sessions support this
function if either the LAC or LNS is enabled with this function.
When the device acts as an LAC, a change in flow control enable state on the LNS causes the same
change in flow control enable state of L2TP sessions. When the device acts as an LNS, a change in the
flow control enable state on the LAC has no effect on the flow control enable state of L2TP sessions.
Examples
# Enable the L2TP session flow control function.
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