公开(公告)号：US10218611B2

公开(公告)日：2019-02-26

申请号：US15381796

申请日：2016-12-16

Applicant: Juniper Networks, Inc.

Inventor： Santosh S. Easale ,  Kireeti Kompella ,  Raveendra Torvi

IPC: H04L12/723 ,  H04L12/751 ,  H04L12/42 ,  H04L12/911 ,  H04L12/801 ,  H04L12/917 ,  H04L12/813 ,  H04L12/913

Abstract: Techniques are described for specifying and constructing multi-protocol label switching (MPLS) rings. Routers may signal membership within MPLS rings and automatically establish ring-based label switch paths (LSPs) as components of the MPLS rings for packet transport within ring networks. In one example, a router includes a processor configured to output Label Distribution Protocol (LDP) messages, as described herein, to establish an MPLS ring having a plurality of ring LSPs. Each of the ring LSPs is configured to transport MPLS packets around the ring network to a different one of the routers operating as an egress router for the respective ring LSP. Moreover, each of the ring LSPs comprises two counter-rotating multipoint-to-point (MP2P) LSPs for which any of the routers can operate as an ingress to source packet traffic into the ring LSP for transport to the respective egress router for the ring LSP.

公开(公告)号：US20170134268A1

公开(公告)日：2017-05-11

申请号：US15381796

申请日：2016-12-16

Applicant: Juniper Networks, Inc.

Inventor： Santosh S. Easale ,  Kireeti Kompella ,  Raveendra Torvi

IPC: H04L12/723 ,  H04L12/42 ,  H04L12/911 ,  H04L12/751

CPC classification number: H04L45/507 ,  H04L12/42 ,  H04L45/02 ,  H04L45/50 ,  H04L47/18 ,  H04L47/20 ,  H04L47/724 ,  H04L47/76 ,  H04L47/783 ,  H04L47/825

Abstract: Techniques are described for specifying and constructing multi-protocol label switching (MPLS) rings. Routers may signal membership within MPLS rings and automatically establish ring-based label switch paths (LSPs) as components of the MPLS rings for packet transport within ring networks. In one example, a router includes a processor configured to output Label Distribution Protocol (LDP) messages, as described herein, to establish an MPLS ring having a plurality of ring LSPs. Each of the ring LSPs is configured to transport MPLS packets around the ring network to a different one of the routers operating as an egress router for the respective ring LSP. Moreover, each of the ring LSPs comprises two counter-rotating multipoint-to-point (MP2P) LSPs for which any of the routers can operate as an ingress to source packet traffic into the ring LSP for transport to the respective egress router for the ring LSP.