公开(公告)号：US20200099775A1

公开(公告)日：2020-03-26

申请号：US16697134

申请日：2019-11-26

Applicant: Cisco Technology, Inc.

Inventor： Patrice BRISSETTE ,  Clarence FILSFILS ,  Darren DUKES ,  Gaurav DAWRA ,  Francois CLAD ,  Pablo CAMARILLO GARVIA

IPC: H04L29/06 ,  H04L29/08 ,  H04L12/721 ,  H04L12/46 ,  H04L12/741 ,  H04L29/12 ,  H04L12/931 ,  H04L12/749

Abstract: In one embodiment, Ethernet Virtual Private Network (EVPN) is implemented using Internet Protocol Version 6 (IPv6) Segment Routing (SRv6) underlay network and SRv6-enhanced Border Gateway Protocol (BGP) signaling. A particular route associated with a particular Internet Protocol Version 6 (IPv6) Segment Routing (SRv6) Segment Identifier (SID) is advertised in a particular route advertisement message of a routing protocol (e.g., BGP). The SID includes encoding representing a particular Ethernet Virtual Private Network (EVPN) Layer 2 (L2) flooding Segment Routing end function of the particular router and a particular Ethernet Segment Identifier (ESI), with the particular SID including a routable prefix to the particular router. The particular router receives a particular packet including the particular SID; and in response, the particular router performs the particular EVPN end function on the particular packet.

公开(公告)号：US20220014460A1

公开(公告)日：2022-01-13

申请号：US17448695

申请日：2021-09-23

Applicant: Cisco Technology, Inc.

Inventor： Clarence FILSFILS ,  Swadesh AGRAWAL ,  Zafar ALI ,  Pablo CAMARILLO GARVIA ,  Francois CLAD

IPC: H04L12/715 ,  H04L12/749

Abstract: In one embodiment, a network comprises a first forwarding domain using a first data plane forwarding protocol and a second forwarding domain using a second data plane forwarding protocol different than the first data forwarding plane forwarding protocol. The first forwarding domain includes a first path node and a particular border node. The second forwarding domain includes a second path node and the particular border node. The particular border node performs Segment Routing or other protocol interworking between the different data plane forwarding domains, such as for transporting packets through a different forwarding domain or translating a packet to use a different data forwarding protocol. These forwarding domains typically include Segment Routing (SR) and SR-Multiprotocol Label Switching (SR-MPLS). Paths through the network are determined by a Path Computation Engine and/or based on route advertisements such associated with Binding Segment Identifiers (BSIDs) (e.g., labels, Internet Protocol version 6 addresses).

公开(公告)号：US20210092043A1

公开(公告)日：2021-03-25

申请号：US16579578

申请日：2019-09-23

Applicant: Cisco Technology, Inc.

Inventor： Clarence FILSFILS ,  Francois CLAD ,  Muthurajah SIVABALAN ,  Zafar ALI

IPC: H04L12/715 ,  H04L29/12 ,  H04L12/713 ,  H04L12/721 ,  H04L12/707

Abstract: Aspects described herein include a method for use with a software-defined network controller, as well as an associated computer program product and system. The method comprises assigning a segment identifier to an endpoint node within a destination domain of a plurality of domains. Adjacent domains of the plurality of domains are connected via a respective set of two or more domain border routers. The method further comprises assigning a respective segment identifier to each domain. Each domain border router advertises the segment identifiers of the respective two adjacent domains. The method further comprises, responsive to a request from a headend node within a source domain of the plurality of domains, computing a path from the headend node to the endpoint node. The path includes (i) the segment identifiers of any domains between the headend node and the endpoint node, and (ii) the segment identifier of the endpoint node.