A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Layer 2 Virtual Private Networks Working Group of the IETF.
Title : IP-Only LAN Service (IPLS)
Author(s) : H. Shah, et al.
Filename : draft-ietf-l2vpn-ipls-01.txt
Pages : 18
Date : 2004-10-4
A Virtual Private LAN Service (VPLS) [VPLS] is used to interconnect
systems across a wide-area or metropolitan-area network, making it
appear to those systems as if they are interconnected on a private
LAN. The systems which are interconnected in this way may
themselves be LAN switches. If, however, the interconnected systems
are NOT LAN switches, but rather are IP hosts or IP routers, certain
simplifications are possible. We call this simplified type of
virtual private LAN service an ?Ip-only LAN Service? (IPLS). In
IPLS, as in VPLS, LAN interfaces are run in promiscuous mode, and
frames are forwarded based on their MAC Destination Addresses.
However, the maintenance of the MAC forwarding tables is done via
signaling, rather than via the ?MAC Address Learning? procedures of
IEEE 802.1D. Further, Address Resolution Protocol (ARP) messages
are proxied, rather than being carried transparently. This draft
specifies the protocols and procedures for support of the IPLS
service.
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