Figure 6-13 Evpl Accessing, Forwarding And Stripping - Huawei OptiX OSN 7500 Technical Manual

OptiX OSN 7500
Technical Manual - System Description
1.
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.
Destination

Figure 6-13 EVPL accessing, forwarding and stripping

EVPL
FE/GE
Node 2
LSP
Action Insertion
Tunnel 100
VC 100
Node 4
Huawei Technologies Proprietary
Node 1
Dual-ring
2.5 Gbit/s RPR
Node 4
Node 3
Action Forwarding
6-15
6 Data Features
FE/GE
Action Stripping
Tunnel 100
VC 100