Frame Relay

Legacy Layer 2 Wan Encapsulation

DTE: data terminal equipment

DCE: data circuit terminal equipment

PVC: permanent virtual circuit – logical connection in frame relay network

DLCI: Data-link connection identifier – local identifier for each PVC

LMI – local management interface – signaling standard used to exchange information

DTE

[R1]

L

M

I

DTE[R2]     <–LMI–>               DCE Frame         <–LMI–>               DTE[R3]

Relay Switch

 

Point to Point OSPF 10 sec

Point to Multipoint OSPF 30 sec

 

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