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1.发明授权公开(公告)号：US12177134B1
公开(公告)日：2024-12-24
申请号：US17821219
申请日：2022-08-22
Applicant: Juniper Networks, Inc.
Inventor： Sunil Kumar , Hariharan Boopathy , Vinod Kumar N , Ramakrishnan Shanmuga Sundaram
Abstract: Techniques are described for dynamically computing a segment routing policy for a segment routing for traffic engineering (SR-TE) path. For example, in a discontinuous SR network in which SR islands (e.g., groups of neighboring routers that are enabled for segment routing) are separated by one or more routers not enabled for segment routing, instead of returning a failure because one or more routers along a path are not enabled for SR, an ingress router may generate an SR-TE operations, administrations, and management (OAM) Multi-Protocol Label Switching (MPLS) traceroute packet send the packet to a first border router of the RSVP-enabled devices along a computed path to trigger the creation of a resource reservation Label Switched Path (LSP) through the RSVP-enabled devices. In this way, segment routed LSP may be established to tunnel through the resource reservation LSP for a SR-TE path used in an SR-TE policy.
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公开(公告)号：US10382217B1
公开(公告)日：2019-08-13
申请号：US15085321
申请日：2016-03-30
Applicant: Juniper Networks, Inc.
Inventor： Robert W. Kebler , Vikram Nagarajan , Sunil Kumar , Sanoj Kadavil Vivekanandan
IPC: H04L12/46 , H04L12/751 , H04L12/18
Abstract: In some examples, a method includes receiving, by a first ingress network device of a network, a source tree join route message from an egress network device of the network, the source tree join route message specifying a multicast source and a multicast group, and in response to receiving, by the first ingress network device, a source active auto-discovery route message from a second ingress network device of the network indicating that the second ingress network device has switched from using a shared multicast tree to using a shortest path tree to deliver multicast traffic from the multicast source, electing one of the first ingress network device or the second ingress network device as a single active forwarder for forwarding the multicast traffic received from the multicast source for the multicast group.
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Patent Agency Ranking
3.发明授权公开(公告)号：US11425056B1
公开(公告)日：2022-08-23
申请号：US16795493
申请日：2020-02-19
Applicant: Juniper Networks, Inc.
Inventor： Sunil Kumar , Hariharan Boopathy , Vinod Kumar N , Ramakrishnan Shanmuga Sundaram
Abstract: Techniques are described for dynamically computing a segment routing policy for a segment routing for traffic engineering (SR-TE) path. For example, in a discontinuous SR network in which SR islands (e.g., groups of neighboring routers that are enabled for segment routing) are separated by one or more routers not enabled for segment routing, instead of returning a failure because one or more routers along a path are not enabled for SR, an ingress router may generate an SR-TE operations, administrations, and management (OAM) Multi-Protocol Label Switching (MPLS) traceroute packet send the packet to a first border router of the RSVP-enabled devices along a computed path to trigger the creation of a resource reservation Label Switched Path (LSP) through the RSVP-enabled devices. In this way, segment routed LSP may be established to tunnel through the resource reservation LSP for a SR-TE path used in an SR-TE policy.
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公开(公告)号：US20170289217A1
公开(公告)日：2017-10-05
申请号：US15086897
申请日：2016-03-31
Applicant: Juniper Networks, Inc.
Inventor： Robert W. Kebler , Vikram Nagarajan , Sunil Kumar , Sanoj Kadavil Vivekanandan
IPC: H04L29/06 , H04L12/911 , H04L12/751
CPC classification number: H04L65/4076 , H04L12/1886 , H04L45/02 , H04L45/16 , H04L47/825
Abstract: In some examples, a method includes receiving, by a first ingress network device for a network, a source tree join route message from an egress network device for the network, specifying a multicast source and a multicast group, and in response to receiving the source tree join route message, determining, by the ingress network device, whether the multicast source is multi-homed to the network via the first ingress network device and a second ingress network device for the network. The method includes, in response to determining that the multicast source is not multi-homed, forwarding traffic for the multicast source on an inclusive provider tunnel without initiating setup of a selective provider tunnel to the egress network device, and in response to determining that the multicast source is multi-homed, initiating setup of a selective provider tunnel to the egress network device and terminating forwarding multicast traffic on the inclusive provider tunnel.
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5.发明授权公开(公告)号：US10608931B1
公开(公告)日：2020-03-31
申请号：US15362193
申请日：2016-11-28
Applicant: Juniper Networks, Inc.
Inventor： Vinod N. Kumar , Sunil Kumar
IPC: G06F15/173 , H04L12/723 , H04L12/46 , H04L12/18 , H04L12/761
Abstract: A first device may receive a traffic flow to be multicasted to at least two of a set of second devices. The first device may provide first messages to the set of second devices identifying the traffic flow. The first device may identify a set of interested second devices, of the set of second devices, based on respective second messages that are received from the set of interested second devices based on the first messages. The first device may determine whether a quantity of the set of interested second devices satisfies a threshold. The first device may selectively provide the traffic flow to the set of interested second devices, using a first type of multicast distribution tree or a second type of multicast distribution tree, based on whether the quantity satisfies the threshold.
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公开(公告)号：US10104139B2
公开(公告)日：2018-10-16
申请号：US15086897
申请日：2016-03-31
Applicant: Juniper Networks, Inc.
Inventor： Robert W. Kebler , Vikram Nagarajan , Sunil Kumar , Sanoj Kadavil Vivekanandan
IPC: H04L29/06 , H04L12/751 , H04L12/911 , H04L12/18 , H04L12/761
Abstract: In some examples, a method includes receiving, by a first ingress network device for a network, a source tree join route message from an egress network device for the network, specifying a multicast source and a multicast group, and in response to receiving the source tree join route message, determining, by the ingress network device, whether the multicast source is multi-homed to the network via the first ingress network device and a second ingress network device for the network. The method includes, in response to determining that the multicast source is not multi-homed, forwarding traffic for the multicast source on an inclusive provider tunnel without initiating setup of a selective provider tunnel to the egress network device, and in response to determining that the multicast source is multi-homed, initiating setup of a selective provider tunnel to the egress network device and terminating forwarding multicast traffic on the inclusive provider tunnel.
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公开(公告)号：US20190081996A1
公开(公告)日：2019-03-14
申请号：US16160562
申请日：2018-10-15
Applicant: Juniper Networks, Inc.
Inventor： Robert W. Kebler , Vikram Nagarajan , Sunil Kumar , Sanoj Kadavil Vivekanandan
IPC: H04L29/06 , H04L12/18 , H04L12/761 , H04L12/911 , H04L12/751
Abstract: In some examples, a method includes receiving, by a first ingress network device for a network, a source tree join route message from an egress network device for the network, specifying a multicast source and a multicast group, and in response to receiving the source tree join route message, determining, by the ingress network device, whether the multicast source is multi-homed to the network via the first ingress network device and a second ingress network device for the network. The method includes, in response to determining that the multicast source is not multi-homed, forwarding traffic for the multicast source on an inclusive provider tunnel without initiating setup of a selective provider tunnel to the egress network device, and in response to determining that the multicast source is multi-homed, initiating setup of a selective provider tunnel to the egress network device and terminating forwarding multicast traffic on the inclusive provider tunnel.
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