Huawei AR530 series Configuration Manual page 328

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
In the closed ring networking, CE1 is dual-homed to a Layer 2 network through multiple Layer
2 switching devices. The two edge devices connected to the upper-layer Layer 2 network are
directly connected to each other. The closed ring network is deployed at the aggregation layer
to transparently transmit Layer 2 unicast and multicast packets. SEP runs at the aggregation layer
to implement link redundancy.
As shown in
SEP runs at the aggregation layer.
l
l
Figure 8-15 Networking diagram of a closed ring SEP network
Configuration Roadmap
The configuration roadmap is as follows:
1.
Issue 01 (2014-11-30)
Figure 8-15, Layer 2 switching devices Router1 to Router5 form a ring network.
When there is no faulty link on a ring network, SEP can eliminate loops on the network.
When a link fails on the ring network, SEP can rapidly restore communication between
nodes on the network.
GE7/0/2
Router1
GE7/0/3
GE7/0/1
GE7/0/1
Router2
GE7/0/2
GE7/0/1
GE7/0/1
CE1
VLAN
100
Configure basic SEP functions.
a. Configure SEP segment 1 on Router1 to Router5 and configure VLAN 10 as the
control VLAN of SEP segment 1.
b. Add all devices on the ring to SEP segment 1, and configure the roles of GE7/0/1 and
GE7/0/3 of Router1 in SEP segment 1.
c. On the device where the primary edge interface is located, specify the interface with
the highest priority to block.
d. Set priorities of the interfaces in the SEP segment.
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GE7/0/3
GE7/0/2
Router5
SEP
Segment1
Router3
GE7/0/2
GE7/0/2
GE7/0/3
Primary Edge Port
Secondary Edge Port
Block Port
8 SEP Configuration
GE7/0/1
GE7/0/1
Router4
314