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EVPN MULTIHOMING OPTIMIZATIONS FOR ETHERNET SEGMENT CONNECTION INTERRUPTIONS
EVPN MULTIHOMING OPTIMIZATIONS FOR ETHERNET SEGMENT CONNECTION INTERRUPTIONS
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机译:EVPN多余优化以太网段连接中断
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摘要
Techniques described herein provide for expediting routing convergence in EVPN with multihomed ethernet segment when one of the redundant devices loses connection to the ethernet segment. When a first redundant device receives EVPN auto discovery (AD) route advertising an ethernet segment from a second redundant device, it creates an entry for a forwarding table. The entry has, for an advertised MAC address, a local identifier of the ethernet segment (marked as active next hop) and the identifier of the second network device (marked as backup next hop). When a packet for that MAC address is received, the first redundant device routes the data using data from the entry. In particular, the first redundant device uses the local identifier of the ethernet segment as next hop when the ethernet segment link is active; and uses the identifier of the second network device as next hop when the ethernet segment is down.
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