IP over LAN Service (IPLS)

Document Type Expired Internet-Draft (individual)
Author Himanshu Shah 
Last updated 2003-07-01 (latest revision 2003-03-06)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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 over 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 forwarded 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.


Himanshu Shah (hshah@ciena.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)