802.1aq support over ietf evpn
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorDavid Ian Allan
Life of this patent
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Abstract
A method is 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 includes receiving an Intermediate System-Intermediate System (IS-IS) protocol data unit (PDU) including an IS-IS Type Length Value (TLV) by the PE and determining whether the received IS-IS PDU requires a change in a configuration of designated forwarder (DF). The method further includes determining whether the PE is still the 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.
Claims15
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.
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 PE comprising:
- a processor configured to execute a control plane interworking function, an Intermediate System-Intermediate System (IS-IS) module and a BGP module,
- the control plane interworking function configured to determine whether a received IS-IS protocol data unit (PDU) that requires a change in a configuration of a DF, to determine whether the PE is still the DF for one or more Backbone-Virtual Local Area Network Identifiers (B-VIDs), and to remove 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.
A computing device to execute a process to implement 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 computing device comprising:
- a processor configured to execute the PE, the PE including a control plane interworking function, an Intermediate System-Intermediate System (IS-IS) module and a BGP module,
- the control plane interworking function configured to determine whether a received IS-IS protocol data unit (PDU) requires a change in a configuration of a DF, to determine whether the PE is still the DF for one or more Backbone-Virtual Local Area Network Identifiers (B-VIDs), and to remove 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.
Dependencies are inferred from the claim text.