公开(公告)号：US10382592B2

公开(公告)日：2019-08-13

申请号：US15647828

申请日：2017-07-12

Applicant: Juniper Networks, Inc.

Inventor： Arijit Paul ,  Amit J. Upadhyay ,  JenChieh Tsai ,  Naga Hari Prasad V. V. Chintakunta

IPC: H04L29/06 ,  H04L12/775 ,  H04L12/721 ,  H04L12/911 ,  H04L12/24 ,  H04L12/723 ,  H04L12/717

Abstract: Techniques are described for establishing a segment routed label switched path (LSP) regardless of whether a router along the shortest path is not enabled for segment routing. For example, a resource reservation LSP (e.g., a resource reservation protocol (RSVP) LSP) is established across the router that is not enabled for segment routing, such that the segment routed LSP may be established to tunnel through the resource reservation LSP. For example, when a centralized controller receives a request to establish a path using segment routing, one or more routers along the shortest path may not be enabled for segment routing. Instead of rejecting the request to establish the segment routed LSP in response to determining that one or more routers in a selected path are not enabled for segment routing, the controller may establish a resource reservation LSP to tunnel around the router that is not enabled for segment routing.

公开(公告)号：US20190020738A1

公开(公告)日：2019-01-17

申请号：US15647828

申请日：2017-07-12

Applicant: Juniper Networks, Inc.

Inventor： Arijit Paul ,  Amit J. Upadhyay ,  JenChieh Tsai ,  Naga Hari Prasad V.V. Chintakunta

IPC: H04L29/06 ,  H04L12/775 ,  H04L12/721 ,  H04L12/911

CPC classification number: H04L69/166 ,  H04L41/0813 ,  H04L45/34 ,  H04L45/38 ,  H04L45/42 ,  H04L45/50 ,  H04L45/58 ,  H04L45/66 ,  H04L47/825

Abstract: Techniques are described for establishing a segment routed label switched path (LSP) regardless of whether a router along the shortest path is not enabled for segment routing. For example, a resource reservation LSP (e.g., a resource reservation protocol (RSVP) LSP) is established across the router that is not enabled for segment routing, such that the segment routed LSP may be established to tunnel through the resource reservation LSP. For example, when a centralized controller receives a request to establish a path using segment routing, one or more routers along the shortest path may not be enabled for segment routing. Instead of rejecting the request to establish the segment routed LSP in response to determining that one or more routers in a selected path are not enabled for segment routing, the controller may establish a resource reservation LSP to tunnel around the router that is not enabled for segment routing.