Alcatel-Lucent 7750 SR - Pbb Oam; Figure 121: PBB OAM View for MPLS Infrastructure

PBB Features
Page 814 7750 SR OS Services Guide
PBB OAM
Alcatel-Lucent’s PBB implementation support both MPLS and native Ethernet tunneling. In the
case of an MPLS, SDP bindings are used as the B-VPLS infrastructure while T-LDP is used for
signaling. As a result, the existing VPLS, MPLS diagnostic tools are supported in both I-VPLS
and B-VPLS domains as depicted in Figure 121.
Figure 121: PBB OAM View for MPLS Infrastructure
When an Ethernet switching backbone is used for aggregation between PBB PEs, a SAP is used as
the B-VPLS uplink instead of an SDP. No T-LDP signalling is available.
The existing IEEE 802.1ag implemented for regular VPLS SAPs may be used to troubleshoot
connectivity at I-VPLS and B-VPLS layers.
MPLS WAN
I-OAM
Equivalent OAM View - High Level
Service PoP
Tier 2 CO
Tier 3 CO
OSSG200
CE
CE
II
VSI
VSI VSI
VSI
B B PE-rs
PBB PE
PBB MTU
B-OAM
PW-OAM
LSP-OAM
QinQ/
802.1ad
BB
I
B
BBB
I
I
CE
CE CE
PW-OAM
LSP-OAM
PW-OAM
LSP-OAM
PW-OAM
LSP-OAM
PW-OAM
LSP-OAM
B