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I-D ACTION:draft-vipin-l2tpext-failover-00.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.


	Title		: Fail over extensions for L2TP
	Author(s)	: V. Jain
	Filename	: draft-vipin-l2tpext-failover-00.txt
	Pages		: 9
	Date		: 04-May-01
	
The Layer Two Tunneling Protocol (L2TP) [1] provides a standard
method for tunneling PPP [2] packets. Because L2TP control, and
optionally data packets uses sequencing, it becomes difficult to 
preserve L2TP tunnels and sessions within, should there be a failure 
in a system. Protocol extensions are required to indicate the peer
about fail over to help failed system recover better and exhibit
more predictable behavior. This would provide resiliency in an L2TP
based network thereby improving end user's PPP connectivity. It can
also be used to provide planned shutdown of L2TP tunnels.

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