Configuring L2TP Control-Channel Parameters
• Cancel - Remains in the configuration mode, without committing the configuration changes.
Configuring L2TP Control-Channel Parameters
This section describes the tasks you must perform to create a template of L2TP control-channel parameters
that can be inherited by different pseudowire classes. The three main parameters described are:
• Timing parameters
• Authentication parameters
• Maintenance parameters
L2TP control-channel parameters are used in control-channel authentication, keepalive messages, and
control-channel negotiation. In a L2tpv3 session, the same L2tp class must be configured on both PE routers.
The three main groups of L2TP control-channel parameters that you can configure in an L2TP class are
described in the following subsections:
•
•
•
Note
When you enter L2TP class configuration mode, you can configure L2TP control-channel parameters in
any order. If you have multiple authentication requirements you can configure multiple sets of L2TP class
control-channel parameters with different L2TP class names. However, only one set of L2TP class
control-channel parameters can be applied to a connection between any pair of IP addresses.
Configuring L2TP Control-Channel Timing Parameters
The following L2TP control-channel timing parameters can be configured in L2TP class configuration mode:
• Packet size of the receive window used for the control-channel.
• Retransmission parameters used for control messages.
• Timeout parameters used for the control-channel.
This task configures a set of timing control-channel parameters in an L2TP class. All timing control-channel
Note
parameter configurations can be configured in any order. If not configured, the default values are applied.
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
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Configuring L2TP Control-Channel Timing Parameters
Configuring L2TPv3 Control-Channel Authentication Parameters
Configuring L2TP Control-Channel Maintenance Parameters
Implementing Layer 2 Tunnel Protocol Version 3