PBB Features
Page 582 7210 SAS-X, R6 OS Services
PBB ELINE Service
ELINE service is defined in PBB (IEEE 802.1ah) as a point-to-point service over the B-
component infrastructure. Alcatel-Lucent’s implementation offers support for PBB ELINE
through the mapping of multiple Epipe services to a Backbone VPLS infrastructure.
The use of Epipe scales the ELINE services as no MAC switching, learning or replication is
required in order to deliver the point-to-point service.
All packets ingressing the customer SAP are PBB encapsulated and unicasted through the B-
VPLS “tunnel” using the backbone destination MAC of the remote PBB PE.
All the packets ingressing the B-VPLS destined for the Epipe are PBB de-encapsulated and
forwarded to the customer SAP.
PBB Resiliency for B-VPLS
The following VPLS resiliency mechanisms are also supported in PBB VPLS:
• Native Ethernet resiliency supported in both I-VPLS and B-VPLS contexts
• Distributed LAG, MC-LAG, RSTP
• MSTP in a management VPLS monitoring (B- or I-) SAPs.
• The G.8032 is supported for B-VPLS service. The G.8032 support is used only with PBB
Epipe service from the current releases and cannot be used with PBB I-VPLS service.
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