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L2tp v3 configuration – Brocade Mobility Access Point System Reference Guide (Supporting software release 5.5.0.0 and later) User Manual

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Brocade Mobility Access Point System Reference Guide

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13. Set the following General PBR configuration settings:

14. Select OK to save the updates to the route-map general configuration. Select Reset to revert to

the last saved configuration.

L2TP V3 Configuration

Network configuration

L2TP V3 is an IETF standard used for transporting different types of layer 2 frames in an IP
network. L2TP V3 defines control and encapsulation protocols for tunneling layer 2 frames
between two IP nodes.

Use L2TP V3 to create tunnels for transporting layer 2 frames. L2TP V3 enables Mobility supported
controllers and access points to create tunnels for transporting Ethernet frames to and from bridge
VLANs and physical ports. L2TP V3 tunnels can be defined between Mobility devices and other
vendor devices supporting the L2TP V3 protocol.

Multiple pseudowires can be created within an L2TP V3 tunnel. Mobility supported access points
support an Ethernet VLAN pseudowire type exclusively.

NOTE

A pseudowire is an emulation of a layer 2 point-to-point connection over a packet-switching network
(PSN). A pseudowire was developed out of the necessity to encapsulate and tunnel layer 2 protocols
across a layer 3 network.

Ethernet VLAN pseudowires transport Ethernet frames to and from a specified VLAN. One or more
L2TP V3 tunnels can be defined between tunnel end points. Each tunnel can have one or more
L2TP V3 sessions. Each tunnel session corresponds to one pseudowire. An L2TP V3 control
connection (a L2TP V3 tunnel) needs to be established between the tunneling entities before
creating a session.

For optimal pseudowire operation, both the L2TP V3 session originator and responder need to
know the pseudowire type and identifier. These two parameters are communicated during L2TP V3
session establishment. An L2TP V3 session created within an L2TP V3 connection also specifies
multiplexing parameters for identifying a pseudowire type and ID.

The working status of a pseudowire is reflected by the state of the L2TP V3 session. If a L2TP V3
session is down, the pseudowire associated with it must be shut down. The L2TP V3 control
connection keep-alive mechanism can serve as a monitoring mechanism for the pseudowires
associated with a control connection.

Logging

Select this option to log events generated by route-map configuration rule enforcement.
This setting is disabled by default.

Local PBR

Select this option to implement policy based routing for this access point’s packet traffic.
This setting is enabled by default, so the match and action clauses defined within the
Route Maps tab are implemented until disabled using this setting.

Use CRM

Select the Use CRM (Critical Resource Management) option to monitor access point link
status. Selecting this option determines the disposition of the route-map next hop via
monitored critical resources. Link monitoring is used to determine a potential failover to
the secondary next hop. This setting is enabled by default.