Alcatel-Lucent 7210 SAS-X - Figure 47: Large PBB-VPLS Deployment

PBB Features
Page 574 7210 SAS-X, R6 OS Services
Figure 47: 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.
In Figure 47, 7210 devices can only be used as U-PEs supporting only native Ethernet PBB
services.
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