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S12700 V200R010C00 Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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Open Ring Networking

Open Ring Networking

Open ring networking occurs at the access layer and is used to transparently transmit Layer 2 unicast and multicast services. When SEP runs at the access layer, redundancy protection switching can be implemented at the access layer and topology of the SEP segment can be displayed. On an open ring network, edge interfaces are located on two edge devices in the SEP segment.

Figure 17-10 shows a networking diagram of an open ring running SEP.

Figure 17-10  Open ring running SEP

In Figure 17-10, LSW1 to LSW5 are not directly connected and form an open ring to connect to a Layer 2 network.

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Updated: 2019-08-21

Document ID: EDOC1000142081

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