Local Management Interface

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LMI is a signaling standard used between routers and frame relay switches. Communication takes place between a router and the first frame relay switch it's connected to. Information about keepalives, global addressing, multicasting and the status of virtual circuits is commonly exchanged using LMI.

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LMI is a signaling standard used between routers and frame relay switches. Communication takes place between a router and the first frame relay switch it's connected to. Information about keepalives, global addressing, multicasting 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
   The "Gang of Four", for the four companies that developed it: Cisco, DEC, StrataCom and NorTel (Northern Telecom).

See also