Pseudowires and L2TPv3

5/14/2002


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Table of Contents

Pseudowires and L2TPv3

Goals of This Talk

Pseudowire

Sample L2VPN Using Pseudowires

Network Convergence

Network Convergence

Tunneling

Tunneling Requirements for PWE3 over IP

L2TPv3 Encapsulation

Tunneling Requirements for PWE3 over IP

L2TP Control Plane

L2TP Control Connection

L2TP Control Connection

L2TP Session Establishment

L2TP Maintenance

Example Session Establishment (Frame Relay)

Frame Relay Circuit Status AVP

Frame Relay Circuit Status AVP

Example PVC Status Change

Example PVC Status Change

Example PVC Status Change

Example Session Teardown

Tunneling Requirements for PWE3 over IP

L2TP Security

L2TP Security

Blind Insertion Attack

Brute Force Insertion

Brute Force Insertion

What’s new in L2TPv3?

L2TP Timeline

L2TP Timeline

Summary

References

Author: W. Mark Townsley

Email: webmaster@ripe.net

Home Page: http://www.ripe.net/