D-Link DGS-6600-48TS Configuration Guide - Page 186

Volume 3-Layer 2 Configurations / Chapter 19-Ethernet Ring Protection Switching (ERPS) Configuration Example • Sub-ring detects link failure event and performs flush FDB and issues TC event. • Parent-ring which receives TC event checks if state of TC for sub-ring is enabled? (Default: disabled) • If state is enabled, parent-ring performs flush FDB action and sends R-APS (Event, Flush) messages to inform other ring nodes this TC event. • Ring nodes which receive R-APS (Event, Flush) message perform flush FDB action. The TC event of step1 and "flush FDB" signal of step4 will be disabled after 10ms. This is used to prevent performing multiple times of flush FDB action. Configuration Example ERPS Configuration Example R1, R2 and R3 run ERPS. R1 is the RPL owner. R1 port eth2.5 will be blocked to prevent loop.When any of links (e.g., eth2.6 between R2, R3) in the ring is down, the blocked port will become active within 50ms. Topology Figure 19-3 ERPS Configuration Topology R1 (Router 1) Configuration Steps Step 1: Create VLAN 2, 3 DGS-6600:15(config)#vlan 2 DGS-6600:15(config-vlan)#vlan 3 DGS-6600 Configuration Guide 186