Huawei Quidway S7700 Configuration Manual - Ethernet page 514

Smart routing switch

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Table of Contents

Quidway S7700 Smart Routing Switch

Configuration Guide - Ethernet

Issue 01 (2011-07-15)

Figure 10-5 Networking diagram for multiple rings running SEP

10-5, LSW1 to LSW14 form multiple rings. 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. SEP runs at the

aggregation layer and access layer to implement link redundancy. If the topology of a SEP

segment at the access layer changes, a node in the SEP segment sends a Flush-FDB packet

to instruct the other nodes in the SEP segment to refresh their MAC address forwarding

tables and ARP tables. The edge devices in the SEP segment send TC packets to notify

devices at the upper layer that the topology of the SEP segment has changed.

In multi-ring networking, topology change notification among ring networks needs to be

Hybrid networking

– Hybrid SEP+MSTP ring networking

Huawei Proprietary and Confidential

IP/MPLS Core

VRRP+peer BFD

10 SEP Configuration

Quidway s9300