Multi-Segment Pw - HP 10500 Series Configuration Manual
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Also See for 10500 Series:
- Security configuration manual (596 pages) ,
- Configuration manual (512 pages) ,
- Specifications (42 pages)
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Figure 61 PW redundancy
The MPLS L2VPN determines whether the primary PW fails according to the LDP session status or the BFD
result. The backup PW is used when one of the following conditions exist:
•
The primary PW goes down because the public tunnel of the primary PW is deleted, or BFD detects
that the public tunnel has failed.
•
The primary PW is deleted because the LDP session between PEs goes down, or BFD detects that the
primary PW has failed.
A manual PW switchover is performed.
•
Multi-segment PW
A multi-segment PW comprises multiple concatenated static or dynamic PWs. Creating two PWs for a
cross-connect on a PE can concatenate the two PWs. Upon receiving a packet from one PW, the PE
removes the tunnel ID and PW label of the packet, adds the PW label of the other PW, and forwards the
packet over the public tunnel.
As shown in
1 and PW 2 on PE 2, and PW 2 and PW 3 on PE 3.
Figure
62, you can create a multi-segment PW between PE 1 and PE 4 by concatenating PW
227
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