FD 100/320Gbps NT and FX NT IHub Services Guide Virtual Private LAN Service
Issue: 13 3HH-11985-AAAA-TQZZA 225
Figure 28 BGP-AD and T-LDP Interaction
5.10.4 SDP Usage
Service Access Points (SAP) are linked to transport tunnels using Service
Distribution Points (SDP). The service architecture of the ISAM platform allows
services to be abstracted from the transport network.
MPLS transport tunnels are signaled using the Resource Reservation Protocol
(RSVP-TE) or by the Label Distribution Protocol (LDP). The capability to
automatically create an SDP only exists for LDP based transport tunnels. Using a
manually provisioned SDP is available for both RSVP-TE and LDP transport tunnels.
Refer to the appropriate IHub MPLS Guide for more information about MPLS, LDP,
and RSVP.
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