Extensions to Support Efficient Carrying of Multicast Traffic in Layer-2 Tunneling Protocol (L2TP)
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: Internet Architecture Board <email@example.com>, RFC Editor <firstname.lastname@example.org>, l2tpext mailing list <email@example.com>, l2tpext chair <firstname.lastname@example.org> Subject: Document Action: 'Extensions to support efficient carrying of multicast traffic in Layer-2 Tunneling Protocol (L2TP)' to Experimental RFC The IESG has approved the following document: - 'Extensions to support efficient carrying of multicast traffic in Layer-2 Tunneling Protocol (L2TP) ' <draft-ietf-l2tpext-mcast-06.txt> as an Experimental RFC This document is the product of the Layer Two Tunneling Protocol Extensions Working Group. The IESG contact persons are Thomas Narten and Mark Townsley. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-l2tpext-mcast-06.txt
Technical Summary The Layer Two Tunneling Protocol (L2TP) provides a standard method for tunneling PPP packets. When IP multicast is used, the forwarding of multicast data within L2TP sessions may impact the throughput of L2TP tunnels because the same traffic may be sent multiple times within the same L2TP tunnel, but in different sessions. This document describes an extension to L2TP, in order to have an efficient use of L2TP tunnels within the context of deploying multicast services whose data will have to be conveyed by such tunnels. Working Group Summary There was support for this in the WG. Protocol Quality This document has been reviewed for the IESG by Thomas Narten.