Patent ID: 9369549
Filing Date: 2016-06-14
CPC Classification: H04L

Claim Text:
1. A method implemented in a provider edge switch (PE) for interworking an 802.1aq control plane with an Ethernet Virtual Private Network (EVPN) Border Gateway Protocol (BGP) control plane, the method comprising the steps of: receiving an Intermediate System-Intermediate System (IS-IS) protocol data unit (PDU) including by the PE that changes configuration of the designated forwarder (DF); determining whether the PE is still a designated forwarder (DF) for one or more Backbone-Virtual Local Area Network Identifiers (B-VIDs); and removing local DF associated network layer reachability information (NLRI) from a BGP database and remote NLRI from an IS-IS database, in response to the PE no longer being the DF.