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US 10,476,786 B2Granted
Method and system using a scalable label scheme for aliasing in a multihomed Ethernet virtual private network (EVPN) network
AssigneeArista Networks, Inc.
InventorRajesh Kumar Semwal
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Abstract
In general, embodiments of the invention relate to a system and method for processing Multiprotocol Label Switching (MPLS) frames. More specifically, embodiments of the invention relate to a method and system for implementing aliasing using Media Access Control (MAC)-Virtual Routing Function (VRF) labels on a per-Ethernet VPN Instance (EVI) basis.
Claims20
A method for processing frames, comprising:
- receiving, by a network element, a frame comprising a Media Access Control-Virtual Routing Function (MAC-VRF) label and a first media access control (MAC) address;
- identifying, using the MAC-VRF label, a virtual local area network (VLAN);
- identifying, using an identifier associated with the VLAN and the first MAC address, an egress port on the network element;
- and
- transmitting, by the network element, a second frame, comprising at least a portion of the frame, from the egress port towards a destination associated with the first MAC address, wherein the first MAC address is learned from an advertisement and not locally-learned by the network element,
- wherein the advertisement is received from a second network element,
- wherein the advertisement comprises the MAC address and an Ethernet Segment Identifier (ESI) for an Ethernet Segment (ES), and
- wherein the network element is associated with the ES.
5 more elements
A non-transitory computer readable medium (CRM) comprising computer readable program code, which when executed by a processor on a network element, enables the network element to:
- receive, by the network element, a frame comprising a Media Access Control-Virtual Routing Function (MAC-VRF) label and a first media access control (MAC) address;
- identify, using the MAC-VRF label, a virtual local area network (VLAN);
- identify, using an identifier associated with the VLAN and the first MAC address, an egress port on the network element;
- and
- transmit a second frame, comprising at least a portion of the frame, from the egress port towards a destination associated with the first MAC address, wherein the first MAC address is learned from an advertisement and not locally-learned by the network element,
- wherein the advertisement is received from a second network element,
- wherein the advertisement comprises the MAC address and an Ethernet Segment Identifier (ESI) for an Ethernet Segment (ES), and
- wherein the network element is associated with the ES.
5 more elements
Dependencies are inferred from the claim text.