191
•
Provider device
—P devices do not directly connect to CEs. They only need to forward user packets
between PEs along the public tunnel.
MPLS L2VPN network models
MPLS L2VPN network models include remote connection model and local connection model.
Remote connection model
As shown in
, this model connects two Layer 2 customer networks over an MPLS or IP backbone.
Figure 46
Remote connection
Local connection model
As shown in
, this model connects two Layer 2 customer networks to the same PE. The customer
networks exchange packets with each other through the PE. The PE functions like a Layer 2 switch.
Figure 47
Local connection
NOTE:
The switch does not support the local connection architecture.
Remote connection operation
Remote connection establishment
To set up a remote MPLS L2VPN connection between two CEs over a backbone network:
1.
Set up a public tunnel to forward user packets from the local PE to the remote PE.
The public tunnel can be an LSP, MPLS TE, or GRE tunnel. For more information about LSP and
MPLS TE tunnels, see "
." For more information
about GRE tunnels, see
Layer 3—IP Services Configuration Guide
.
