Virtual Leased Line Services
7750 SR OS Services Guide Page 197
Epipe with PBB
A pbb-tunnel may be linked to an Epipe to a B-VPLS. MAC switching and learning is not required
for the point-to-point service (all packets ingressing the SAP are PBB encapsulated and forwarded
to the PBB tunnel to the backbone destination MAC address and all the packets ingressing the B-
VPLS destined for the ISID are PBB de-encapsulated and forwarded to the Epipe SAP. A fully
specified backbone destination address must be provisioned for each PBB Epipe instance to be
used for each incoming frame on the related I-SAP. If the backbone destination address is not
found in the B-VPLS FDB then packets may be flooded through the B-VPLSs
All B-VPLS constructs may be used including B-VPLS resiliency and OAM. Not all generic
Epipe commands are applicable when using a PBB tunnel.
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