Frame relay lmi-types

mbeavenmbeaven Member Posts: 50 ■■□□□□□□□□
Question, when configuring routers does the lmi-type have to match?


  • WebmasterWebmaster Admin Posts: 10,292 Admin
    The router has to be configured with an LMI type supported by the frame-relay switch it is connected to. When you use only Cisco equipment, you should use the default type: cisco

    Since IOS version 11.2, the LMI type is auto-sensed enabling allowing the interface to determine the LMI type supported by the switch.
  • mbeavenmbeaven Member Posts: 50 ■■□□□□□□□□
    Thanks. The reason I asked is that I ran across a question on a practice exam that had 3 routers around a frame-relay cloud and listed their configurations and asked why they couldn't communicate and the answer was that one router had a different lmi-type. It seemed kind of strange.
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