Alcatel-Lucent 7750 SR - Figure 100: Large PBB-VPLS Deployment

PBB Features
Page 770 7750 SR OS Services Guide
Figure 100: Large PBB-VPLS Deployment
PBB encapsulation is added at the user facing PE (U-PE) to hide the customer MAC addressing
and topology from the N-PE devices. The core N-PEs need to only handle backbone MAC
addressing and do not need to have visibility of each customer VPN. As a result, the integrated
PBB-VPLS solution decreases the load in the N-PEs and improves the overall stability of the
backbone.
Alcatel-Lucent’s PBB-VPLS solution also provides automatic discovery of the customer VPNs
through the implementation of IEEE 802.1ak MMRP minimizing the number of provisioning
touches required at the N-PEs.
OSSG191
# MACs, Service Instances
Provisioning Touches
N-PE
VPLS/MPLS
Core
PBB-VPLS
U-PEs
PBB-VPLS
U-PEs
U-PEN-PE
Payload
Ethertype
Ethertype
Ethertype
C-VID
S-VID
C-SA
C-DA
Payload
Ethertype
Ethertype
Ethertype
C-VID
S-VID
C-SA
C-DA
Payload
Ethertype
Ethertype
Ethertype
Ethertype
C-VID
S-VID
I-TAG
C-SA
C-DA
B-SA
B-DA