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Configuration Guide - Ethernet Switching

S1720, S2700, S5700, and S6720 V200R012(C00 and C20)

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Multi-Ring Networking

Multi-Ring Networking

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.

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

Figure 16-12 shows a networking diagram of multiple rings running SEP.

Figure 16-12  Multiple rings running SEP

In Figure 16-12, LSW1 to LSW5 are at the aggregation layer, and LSW6 to LSW14 are at the access layer. Layer 2 services are transparently transmitted at the access layer and the aggregation layer.

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 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.

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Updated: 2018-12-24

Document ID: EDOC1100038339

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