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公开(公告)号:US20200274798A1
公开(公告)日:2020-08-27
申请号:US15929601
申请日:2020-05-12
Applicant: Cisco Technology, Inc.
Inventor: Clarence FILSFILS , Ahmed Refaat BASHANDY , Syed Kamran RAZA , Darren DUKES , Patrice BRISSETTE , Jisu BHATTACHARYA
IPC: H04L12/721 , H04L12/755 , H04L12/741 , H04L12/749
Abstract: In one embodiment, segment routing (SR) network processing of packets is performed on packets having a segment identifier structure providing processing and/or memory efficiencies. Responsive to an identified particular segment routing policy, the particular router retrieves from memory a dynamic segment routing identifier portion of the particular SR policy that includes a SR node value and a SR function value. The SR function value identifies segment routing processing to be performed by a router in the network identified based on the SR node value. A segment routing discriminator is independently identified, possibly being a fixed value for all segment identifiers in the network. Before sending into the network, a complete segment identifier is added to the particular packet by combining the segment routing discriminator with the dynamic segment routing identifier portion. The particular packet including the complete segment identifier is sent into the network.
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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.
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