公开(公告)号：US20210352010A1

公开(公告)日：2021-11-11

申请号：US16905545

申请日：2020-06-18

Applicant: Juniper Networks, Inc.

Inventor： Vinod Kumar N ,  Robert W. Kebler ,  Ashok Patrick Jude Manoharan ,  Hariharan Boopathy

IPC: H04L12/723 ,  H04L12/761 ,  H04L12/715 ,  H04L12/46

Abstract: In some examples, a network device may determine whether a first egress network device is segment routing (SR) aware. Based on the first egress network device being SR aware, the network device may initiate establishment of an SR tunnel toward the first egress network device. The network device may forward multicast traffic on the SR tunnel. The network device may also determine whether a second egress network device is SR aware. Based on the second egress network device not being segment routing aware, the network device may initiate establishment of a non-SR tunnel toward the second egress network device. The network device may forward multicast traffic on the non-SR tunnel.

公开(公告)号：US20210297273A1

公开(公告)日：2021-09-23

申请号：US16825732

申请日：2020-03-20

Applicant: Juniper Networks, Inc.

Inventor： Vikram Nagarajan ,  Robert W. Kebler ,  Dinesh Sivaraj ,  Vinod Kumar N

IPC: H04L12/18 ,  H04L12/46

Abstract: The techniques describe example network systems providing core-facing designated forwarder (DF) election to forward multicast traffic into an EVPN of a core network. For example, a first PE device of a plurality of PE devices participating in an EVPN comprises one or more processors operably coupled to a memory, wherein the one or more processors are configured to: determine that a first multicast traffic flow has started for the first PE device; in response, send a source-active (SA) route to indicate the first multicast traffic flow has started for the first PE device; receive, from a second PE device, a second SA route that indicates that a second multicast traffic flow has started for the second PE device; and perform an election of a core-facing DF from among the first PE device and second PE device, wherein the core-facing DF is configured to forward the multicast traffic into the EVPN.

公开(公告)号：US10051022B2

公开(公告)日：2018-08-14

申请号：US15085843

申请日：2016-03-30

Applicant: Juniper Networks, Inc.

Inventor： Vinod Kumar N ,  Sudarsanan Codandam

IPC: H04L29/06 ,  H04L12/723 ,  H04L12/707 ,  H04L12/703

Abstract: In general, techniques are described for providing Hot-Root Standby in Global Table Multicast (GTM) environments. For example, in such GTM environments, normally a single unicast route to the customer multicast source (“C-Source”) will be available to egress provider edge (PE) routers. As described herein, ingress PE routers may advertise multiple routes to a C-Source, including unicast routes that include Route Import Extended Communities, which are imported by egress PE routers. This enables an egress PE router to have multiple paths to the C-Source, and the egress PE router may generate multiple C-multicast source tree joins for respective ingress PE routers in order to receive respective multicast streams sourced by the C-Source from the ingress PE routers.