BIT INDEX EXPLICIT REPLICATION FAST REROUTE

BIT INDEX EXPLICIT REPLICATION FAST REROUTE

A method implemented by a network node in a Bit Index Explicit Replication (BIER) domain is used to provide fast reroute protection. The method includes copying a bit index routing table (BIRT) of the network node, changing a neighbor node in the copied BIRT to one of a plurality of backup neighbor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: CHEN, Huaimo
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:A method implemented by a network node in a Bit Index Explicit Replication (BIER) domain is used to provide fast reroute protection. The method includes copying a bit index routing table (BIRT) of the network node, changing a neighbor node in the copied BIRT to one of a plurality of backup neighbor nodes to generate a backup BIRT, deriving a backup bit index forwarding table (BIFT) from the backup BIRT, and forwarding a packet in accordance with the backup BIFT when the neighbor node has failed.