Huawei AR530 series Configuration Manual page 345

Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
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After receiving a message indicating the topology change in a lower-layer network, a device on
an upper-layer network sends TC packets to instruct other devices to delete original MAC
addresses and learn new MAC addresses after the topology of the lower-layer network changes.
This ensures uninterrupted traffic forwarding.
Figure 8-17 Networking diagram of a hybrid-ring SEP network
Configuration Roadmap
The configuration roadmap is as follows:
1.
Issue 01 (2014-11-30)
When there is no faulty link on the ring network, SEP can eliminate loops.
When a link fails on the ring network, SEP can rapidly restore communication between
nodes.
The topology change notification function must be configured on an edge device in a SEP
segment. This enables an upper-layer network to detect topology changes in a lower-layer
network in time.
GE7/0/3
PE3
GE7/0/1
PE1
GE7/0/2
Do not Support SEP
GE7/0/1
GE7/0/1
Router1
GE7/0/2
GE7/0/2
GE7/0/1
CE
No-neighbor Primary Edge Port
No-neighbor Secondary Edge Port
VLAN100
Block Port(SEP)
Block Port(MSTP)
Configure basic SEP functions.
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GE7/0/2
GE7/0/3
GE7/0/2
MSTP
PE2
GE7/0/3
GE7/0/1
SEP
Segment1
GE7/0/2
GE7/0/1
Router3
GE7/0/3
8 SEP Configuration
PE4
GE7/0/1
GE7/0/2
GE7/0/1
Router2
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