Huawei OptiX OSN 7500 - Figure 6-13 EVPL Accessing, Forwarding and Stripping

OptiX OSN 7500
Technical Manual - System Description 6 Data Features
Huawei Technologies Proprietary
6-15
1. EVPL
The EVPL service supports traffic classification based on port or port + VLAN, and
encapsulates and forwards the traffic in the form of MPLS MartiniOE. Figure 6-13
illustrates the accessing, forwarding and stripping of a unidirectional EVPL service.
Node 2 inserts Tunnel and VC labels to the packet, sends it to the RPR. Node 3
forwards the packet and the destination node 4 strips it. Figure 6-14 illustrates the
EVPL service convergence, implementing traffic classification through port + VLAN,
so that services can be concentrated at the GE port of node 1.
Node 1
Node 3
FE/GE
Dual-ring
2.5 Gbit/s RPR
Action
Tunnel
VC
Destination
Insertion
100
100
Node 4
LSP
Action
Tunnel
VC
Stripping
100
100
Action Forwarding
Node 4Node 2
FE/GE
Figure 6-13 EVPL accessing, forwarding and stripping