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AR500, AR510, and AR530 V200R007 CLI-based Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring transparent bridge, MAC table, link aggregation, VLANs, STP/RSTP/MSTP, and so on.The document provides the configuration procedures and configuration examples to illustrate the service configuration methods and application scenario.
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Multi-Ring Networking

Multi-Ring Networking

As shown in Figure 13-11, the networking composed of Router1 to Router14 is called multi-ring networking. Router1 to Router5 are at the aggregation layer, and Router6 to Router14 are at the access layer. Layer 2 services are transparently transmitted at the access layer and the aggregation layer. When SEP runs at the access layer and the aggregation layer, redundancy protection switching can be implemented at the access layer and the aggregation layer and the topology of the SEP segment can be displayed.

If the topology of the access layer changes, a node in the SEP segment sends a Flush-FDB packet to instruct other nodes in the SEP segment to update their MAC address forwarding tables and ARP tables. Edge devices in the SEP segment send TC packets to notify the upper-layer network that the topology of the SEP segment changes.

In multi-ring networking, the topology change notification function needs to be configured among ring networks.

Figure 13-11  Networking diagram of multiple rings running SEP

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Updated: 2019-05-25

Document ID: EDOC1000097279

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