Local Management Interface: Difference between revisions

Revision as of 21:14, 1 July 2007

Revision as of 01:15, 6 September 2007

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'''Local Management Interface (LMI)''' is a signaling standard used between [[routersrouter]]s and [[frame relay]] switches. Communication takes place between a router and the first frame relay switch it's connected to. Information about [[keepalive]]s, global addressing, [[IP Multicast]] and the status of [[virtual circuits]] is commonly exchanged using LMI.

There are three standards for LMI: ANSI's Annex D standard, T1.617; ITU-T's Q.933 Annex A standard; and the "Gang of Four" standard, named for the four companies that developed it: Cisco, DEC, StrataCom and NorTel (Northern Telecom).