Huawei AR550 Series - Example for Configuring SEP on a Multi-Ring Network

#
interface GigabitEthernet7/0/2
port hybrid tagged vlan 10 100
stp disable
sep segment 1
#
return
l Configuration file of Router5
#
sysname Router5
#
vlan batch 10 100 200
#
sep segment 1
control-vlan 10
protected-instance 0 to 4094
#
interface GigabitEthernet7/0/1
port hybrid tagged vlan 10 100
stp disable
sep segment 1
#
interface GigabitEthernet7/0/2
port hybrid pvid vlan 200
port hybrid tagged vlan 100
port hybrid untagged vlan 200
#
interface GigabitEthernet7/0/3
port hybrid tagged vlan 10 100 200
stp disable
sep segment 1
#
return
l Configuration file of CE1
#
sysname CE1
#
vlan batch 100
#
interface GigabitEthernet7/0/1
port hybrid tagged vlan 100
#
return
8.7.2 Example for Configuring SEP on a Multi-Ring Network
Networking Requirements
Generally, redundant links are used to connect an Ethernet switching network to an upper-layer
network to provide link backup and enhance network reliability. The use of redundant links,
however, may produce loops, causing broadcast storms and rendering the MAC address table
unstable. As a result, communication quality deteriorates, and services may even be interrupted.
SEP can be deployed on the ring network to eliminate loops and restore communication if a link
fault occurs.
In multi-ring networking, multiple rings consisting of Layer 2 switching devices are deployed
at the access layer and aggregation layer. SEP runs at the access layer and aggregation layer to
implement link redundancy.
As shown in Figure 8-16, multiple Layer 2 switching devices form ring networks at the access
layer and aggregation layer.
Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
8 SEP Configuration
Issue 01 (2014-11-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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