Virtual Leased Line Services
7750 SR OS Services Guide Page 119
receive a standard Q.922 Core frame on the Frame Relay SAP and encapsulate it into a
pseudowire packet according to the 1-to-1 Frame Relay encapsulation mode in draft-ietf-pwe3-
frame-relay-xx.txt, Encapsulation Methods for Transport of Frame Relay Over MPLS Networks.
The 7750 Frame Relay VLL feature supports local cross-connecting when the users are attached to
the same 7750 PE node.
The FR PW is initiated using Targeted LDP (TLDP) signaling as specified in draft-ietf-pwe3-
control-protocol-xx.txt, Pseudowire Setup and Maintenance using LDP. The SDP can be an MPLS
or a GRE type.
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