Invention Grant
- Patent Title: Path information transmission device, path information transmission method and path information transmission program
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Application No.: US16969735Application Date: 2019-02-14
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Publication No.: US11296973B2Publication Date: 2022-04-05
- Inventor: Kazuto Toyozumi , Ken Takahashi , Shigemasa Kumagawa
- Applicant: Nippon Telegraph and Telephone Corporation
- Applicant Address: JP Tokyo
- Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee: Nippon Telegraph and Telephone Corporation
- Current Assignee Address: JP Tokyo
- Agency: Fish & Richardson P.C.
- Priority: JPJP2018-025410 20180215
- International Application: PCT/JP2019/005239 WO 20190214
- International Announcement: WO2019/160005 WO 20190822
- Main IPC: H04L45/02
- IPC: H04L45/02 ; H04L12/46

Abstract:
[Problem] A route information transfer device that transfers packets advertising route information between routers of different service types is provided.
[Solution] The route reflector (route information transfer device) 1 includes: a packet reception unit 11 that receives packets from a PE (router) 2; an information update unit 120 that updates a parameter related to the service type included in the received packet according to the PE 2 and the virtual private network, and stores the updated parameter in the service-type information storage unit 13; an information conversion unit 14 that refers to the service-type information storage unit 13 and converts the parameter related to the service type of the source PE2 of the packet into a parameter related to a service-type of the destination PE 2 in an identical virtual private network; and a packet transmission unit 16 that transmits a packet including the converted parameter to the destination PE 2.
[Solution] The route reflector (route information transfer device) 1 includes: a packet reception unit 11 that receives packets from a PE (router) 2; an information update unit 120 that updates a parameter related to the service type included in the received packet according to the PE 2 and the virtual private network, and stores the updated parameter in the service-type information storage unit 13; an information conversion unit 14 that refers to the service-type information storage unit 13 and converts the parameter related to the service type of the source PE2 of the packet into a parameter related to a service-type of the destination PE 2 in an identical virtual private network; and a packet transmission unit 16 that transmits a packet including the converted parameter to the destination PE 2.
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