Name: draft-ouldbrahim-l2vpn-service-mediation-01
Title: Service Mediation between Layer-2 and PWE3/L2VPN Networks
State: Active
Authors: Hamid Ould-Brahim
Group: Individual Submissions (none)
Date: 2004-10-26
segment with an ATM/FR-based pseudowire. The approach requires that an ATM
edge device to encode the remote MPLS provider edge IP address within the
NSAP destination address per call-basis, and covers mostly ATM and FRF.8
specifications. This draft covers other scenarios where a) the native
layer-2 edge doesn’t have a priori knowledge of the remote PE IP addresses,
b) the Layer-2 Provider Edge and the layer-2 network can be native Frame
Relay (FR) using native layer-2 signaling protocols, c) the native layer-2
network can use not only NSAP addressing but as well E.164, X.121, or any
preferred native addressing scheme, and d) the interface between the
MPLS/IP network and native layer-2 network can be FRF.10/X.76 interface. We
refer to the above problem space as "Service Mediation" to indicate that
the native layer-2 signaling is terminated at the MPLS/IP device attached
to the layer-2 network and the "mediated" service is an end-to-end
connection built from two segments: one segment is in its native layer-2
form which we denote as Native Wire (NW) established using native layer-2
signaling protocols and the other segment is a pseudowire (PW) established
using PWE3/L2VPN signaling protocols.
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