公开(公告)号：US11706121B2

公开(公告)日：2023-07-18

申请号：US17448117

申请日：2021-09-20

Applicant: Juniper Networks, Inc.

Inventor： Kiran Kushalad ,  Rajendra Prasad Bollam ,  Rajesh Shetty Manur ,  Salih K A ,  Shraddha Hegde ,  Sri Karthik Goud Gadela ,  Swamy Sadashivaiah Kananda

IPC: H04L45/02 ,  H04L45/12 ,  H04L45/42 ,  H04L45/00 ,  H04L45/74

CPC classification number: H04L45/02 ,  H04L45/20 ,  H04L45/74 ,  H04L2212/00

Abstract: A first network device may receive an advertisement that includes a prefix for a second network device, wherein the advertisement is destined for a third network device. The first network device may determine, based on a network topology, whether a next hop is one hop away or multiple hops away. The first network device may selectively modify the advertisement to include a first segment identifier, based on the next hop being one hop away and to generate a first modified advertisement, or may modify the advertisement to include a second segment identifier, based on the next hop being multiple hops away and to generate a second modified advertisement. The first network device may forward the first modified advertisement or the second modified advertisement toward the third network device.

公开(公告)号：US11671322B2

公开(公告)日：2023-06-06

申请号：US17211239

申请日：2021-03-24

Applicant: Juniper Networks, Inc.

Inventor： William Britto Arimboor Joseph ,  Ronald Bonica ,  Shraddha Hegde ,  Parag Kaneriya ,  Rajesh Shetty Manur

IPC: H04L41/0826 ,  H04L45/12 ,  H04L45/02

CPC classification number: H04L41/0826 ,  H04L45/02 ,  H04L45/124

Abstract: In some implementations, a first network device may receive an advertisement from a second network device. The advertisement may be associated with indicating that the second network device is configured to support a particular flex-algorithm. The first network device may identify, in the advertisement, an address of the second network device. The first network device may configure a routing table of the first network device to indicate that the second network device is capable of receiving traffic associated with the particular flex-algorithm based on the address. The first network device may perform, using the routing table, an action associated with routing the traffic associated with the particular flex-algorithm.

公开(公告)号：US10958564B1

公开(公告)日：2021-03-23

申请号：US16216974

申请日：2018-12-11

Applicant: Juniper Networks, Inc.

Inventor： Abhishek Asthana ,  Abhishek Chakraborty ,  Rajesh Shetty Manur ,  Joya Neema

IPC: H04L12/761 ,  H04L12/753 ,  H04L12/715 ,  H04L12/707 ,  H04L12/733 ,  H04L12/703 ,  H04L12/18

Abstract: Multiple Register State Machines on a rendezvous point router (“RP”) in a Protocol Independent Multicast-Sparse Mode (“PIM-SM”) domain per (S,G) is supported, thereby increasing the Register state consistency and faster convergence in case of a first hop router (“FHR”) failure. Such example embodiments may advantageously eliminate the limitation of a single Register State Machine on RP for a given (S,G), in the presence of multiple FHRs connected to the same source. At least some such example embodiments provide the capability of maintaining multiple Register State Machines on RP for a given (S,G), in a way, that maps one Register State Machine to each FHR. In this way, the RP can avoid the inconsistent FHR states and traffic losses caused due to FHR failures.

公开(公告)号：US10728137B1

公开(公告)日：2020-07-28

申请号：US16147008

申请日：2018-09-28

Applicant: Juniper Networks, Inc.

Inventor： Abhishek Chakraborty ,  Abhishek Asthana ,  Jagathpathi Dasararaju ,  Joya Neema ,  Rajesh Shetty Manur

IPC: H04L12/751 ,  H04L12/761

Abstract: The potential problem of traffic loss during a period when a second PIM router is elected DR after a first PIM router (on the same PIM interface) was previously elected DR and is transiting multicast traffic, is solved by (1) configuring a first interval on a PIM interface for at least the first PIM router; (2) responsive to the PIM interface of the first PIM router booting up, (i) starting, by the first PIM router, a timer corresponding to the configured first interval, (ii) determining, by the first PIM router, whether or not it is the DR on the PIM interface, (iii) upon determining that the timer has expired, redetermining, by the first PIM router, whether or not it is the DR on the PIM interface, and (iv) responsive to a redetermination that the first PIM router is the DR on the PIM interface, (A) increasing, by the first PIM router, a DR priority value of the first PIM router to reduce a likelihood that another of the at least two PIM routers will replace the first PIM router as DR, and (B) sending on the PIM interface, by the first PIM router, a PIM HELLO message including the increased DR priority value.

公开(公告)号：US09832290B2

公开(公告)日：2017-11-28

申请号：US14883292

申请日：2015-10-14

Applicant: Juniper Networks, Inc.

Inventor： Rajesh Shetty Manur ,  Navaneeth Y V ,  Abhishek Asthana

IPC: H04L29/06 ,  H04L12/18

CPC classification number: H04L69/28 ,  H04L12/18 ,  H04L65/4076

Abstract: An example method includes receiving, by a first hop router (FHR) and from a source device, multicast stream data associated with a multicast stream, sending, from the FHR and to a rendezvous point (RP) using a Protocol Independent Multicast (PIM) protocol, one or more null register messages that are each associated with the multicast stream. Each of the one or more null register messages includes a source address and a group address that are collectively associated with the multicast stream, and each of the one or more null register messages further includes an indication to request that the RP refrain from sending any register-stop messages associated with the multicast stream to the FHR. The example method further includes, after sending the one or more null register messages that are each associated with the multicast stream, sending, to the RP, the multicast stream data in a non-encapsulated format.