Figure 29 Bgp Vpls Solution - Nokia 7302 Manual

FD 100/320Gbps NT and FX NT IHub Services Guide
Both of these changes are service affecting. Other changes will not be service
affecting.
5.11 BGP VPLS
The Nokia BGP VPLS solution, compliant with RFC 4761, is described in this section.
Figure
Figure 29
The major BGP VPLS components and the deltas from LDP VPLS with BGP AD are
explained below:
•
•
•
Issue: 13
29 depicts the service representation for BGP VPLS mesh.
BGP VPLS Solution
A2
VPLS
CE2
VPLS
A3
CE3
CE4
Legend:
BGP VPLS
Data plane is identical with the LDP VPLS solution: for example, VPLS instances
interconnected by pseudowire mesh. Split horizon groups may be used for loop
avoidance between pseudowires.
Addressing is based on two (2) bytes VE ID assigned to the VPLS instance.
•
BGP-AD for LDP VPLS: 4 bytes VSI-ID (system IP) identifies the VPLS instance.
The target VPLS instance is identified by the Route Target (RT) contained in the
MP-BGP advertisement (extended community attribute).
•
BGP-AD: a new MP-BGP extended community is used to identify the VPLS. RT is
used for topology control.
3HH-11985-AAAA-TQZZA
Service
Provider
PE2 PE1
Network
PE3 PE4
Virtual Private LAN Service
A1
VPLS
CE1
VPLS
A5
CE5
Route Distinguisher (8 octets)
VE ID (2) VE BI Off (2)
VE BI Size (2)
Label Base (3)
24383
227