EGRESS PROTECTION FOR BUM TRAFFIC WITH LINK FAILURES IN EVPN
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United States of America Patent
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app pub date -
Aug 31, 2015
filing date -
Aug 31, 2015
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Abstract
In some examples, a method includes receiving, by a first provider edge (PE) network device, an egress protection label that is advertised by a second PE network device, wherein each of the first and second PE network devices are included in an Ethernet segment, wherein the first PE network device is a designated forwarder for BUM network packets in the Ethernet segment, and wherein a CE network device is multi-homed to the first and second PE network devices; in response to detecting a link failure, configuring forwarding information of the first PE network device to apply the egress protection label to the BUM network packets received by the first PE network device and forward the BUM network packets to the second PE network device; and in response to receiving the BUM network packets, forwarding the BUM network packets with the egress protection label to the second PE network device.
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