公开(公告)号：US20240214296A1

公开(公告)日：2024-06-27

申请号：US18372591

申请日：2023-09-25

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang

IPC: H04L45/02 ,  H04L45/00 ,  H04L45/748

CPC classification number: H04L45/02 ,  H04L45/32 ,  H04L45/748

Abstract: BIER architecture currently does not support anycast, in that each BIER Forwarding Router (BFR) has its own unique BFR-prefix and BFR-ID. BIER signaling protocols also check if there are duplicate BFR-IDs advertised. Anycast support with BIER is described. The description updates (e.g., relaxes and/or removes some requirements of) RFC 8279, RFC 8401, and RFC 8444.

公开(公告)号：US20240195741A1

公开(公告)日：2024-06-13

申请号：US18534080

申请日：2023-12-08

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang

IPC: H04L45/745 ,  H04L45/484 ,  H04L45/50

CPC classification number: H04L45/745 ,  H04L45/484 ,  H04L45/50

Abstract: A router on a multicast tree, may: (a) receive a control plane message (including a label and a tree identifier identifying the multicast tree) from a downstream router on the multicast tree; (b) construct an SRv6 SID in a LOC:FUNCT:ARG form, wherein the LOC part is a locator of the downstream router and the FUNCT part is the label included in the control plane message received; and (c) create an entry in its forwarding table so that the router replicates received traffic of this multicast tree to the downstream node using the SRv6 SID. A router on a multicast tree may construct an SRv6 SID in a LOC:FUNCT:ARG form for the multicast tree, wherein the LOC is a locator of the router and the FUNCT is to be signaled to an upstream router as a label.

公开(公告)号：US11979349B2

公开(公告)日：2024-05-07

申请号：US17657582

申请日：2022-03-31

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang ,  Constantine Dimitrios-Polychronopoulos ,  Arda Akman

IPC: H04L5/00 ,  H04W8/04 ,  H04W28/02

CPC classification number: H04L5/0048 ,  H04L5/0064 ,  H04W8/04 ,  H04W28/0263

Abstract: In an example, a method comprises executing, by an access network user plane function (ANUP) for a mobile network, an access network protocol to implement a connection with a user equipment (UE); implementing, by the ANUP, based on session data received from a control plane function of a mobile core network for the mobile network, an interface with a data network; and routing or switching, by the ANUP, packets between the connection with the UE and the interface with the data network.

公开(公告)号：US10715428B2

公开(公告)日：2020-07-14

申请号：US16018708

申请日：2018-06-26

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang ,  Abhishek Deshmukh ,  Ravi Singh

IPC: H04L12/723 ,  H04L12/42 ,  H04L12/761

Abstract: Techniques are described for signaling a resource reservation point-to-multipoint (P2MP) label switched path (LSP) in a ring network. For example, the techniques include sending a single resource reservation request message without the ingress needing to send multiple resource reservation request messages, one for each leaf network device of the P2MP ring LSP. The resource reservation request message includes a leaf identification object from which network devices of a P2MP ring LSP may explicitly or implicitly identify themselves as prospective leaf network devices of the P2MP ring LSP. A network device determined to be a leaf network device may send a resource reservation response message back to the ingress network device of the P2MP ring LSP and send a modified resource reservation request message (if explicit) and/or the same resource reservation request message (if implicit) to a next hop network device along the P2MP ring LSP.

公开(公告)号：US20190394122A1

公开(公告)日：2019-12-26

申请号：US16018708

申请日：2018-06-26

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang ,  Abhishek Deshmukh ,  Ravi Singh

IPC: H04L12/723 ,  H04L12/42 ,  H04L12/761

Abstract: Techniques are described for signaling a resource reservation point-to-multipoint (P2MP) label switched path (LSP) in a ring network. For example, the techniques include sending a single resource reservation request message without the ingress needing to send multiple resource reservation request messages, one for each leaf network device of the P2MP ring LSP. The resource reservation request message includes a leaf identification object from which network devices of a P2MP ring LSP may explicitly or implicitly identify themselves as prospective leaf network devices of the P2MP ring LSP. A network device determined to be a leaf network device may send a resource reservation response message back to the ingress network device of the P2MP ring LSP and send a modified resource reservation request message (if explicit) and/or the same resource reservation request message (if implicit) to a next hop network device along the P2MP ring LSP.

公开(公告)号：US10291511B2

公开(公告)日：2019-05-14

申请号：US15641804

申请日：2017-07-05

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang ,  Alex Baban

IPC: H04L12/761 ,  H04L12/935 ,  H04L12/931

Abstract: A network device receives multicast packets that include information identifying destinations in the network, identifies next hops associated with the destinations, and populates a cache with the destinations and addresses of the identified next hops. The network device receives a particular multicast packet that includes information identifying particular destinations included in the cache, identifies one or more next hops for the particular destinations from the cache, and forwards the particular multicast packet to the identified one or more next hops to permit the identified one or more next hops to forward the multicast packet toward the particular destinations.

公开(公告)号：US20180287936A1

公开(公告)日：2018-10-04

申请号：US15473945

申请日：2017-03-30

Applicant: Juniper Networks, Inc.

Inventor： Zhaohui Zhang

IPC: H04L12/723 ,  H04L12/18 ,  H04L12/741 ,  H04L12/66

CPC classification number: H04L45/507 ,  H04L12/18 ,  H04L12/66 ,  H04L45/16 ,  H04L45/42 ,  H04L45/48 ,  H04L45/50 ,  H04L45/745

Abstract: The disclosed computer-implemented method may include (1) receiving, at an upstream router of a multicast distribution tree, a packet that is destined for a receiver within an MPLS network, (2) identifying within the packet (A) a context label that specifies a controller and (B) a tree label that is assigned by the controller, (3) identifying a forwarding table that corresponds to the context label identified within the packet, (4) searching the forwarding table that corresponds to the context label for the tree label that specifies the multicast distribution tree, (5) identifying, based at least in part on the search, a downstream router of the multicast distribution tree that is to receive the packet on the way to the receiver, and then (6) forwarding the packet to the downstream router of the multicast distribution tree on the way to the receiver. Various other methods, systems, and apparatuses are also disclosed.

公开(公告)号：US20180227135A1

公开(公告)日：2018-08-09

申请号：US15945671

申请日：2018-04-04

Applicant: Juniper Networks, Inc.

Inventor： John E. Drake ,  Zhaohui Zhang ,  Wen Lin ,  Tapraj Singh

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/46

CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L12/4641 ,  H04L12/4654 ,  H04L45/16

Abstract: Techniques are described for utilizing Protocol Independent Multicast Sparse Mode (PIM-SM) to transport BUM (broadcast, unknown unicast, and multicast) traffic in a Virtual Extensible LAN (VXLAN) underlay of a data center, where the BUM traffic is received on active-active, multi-homed Ethernet virtual private network (EVPN) interconnects between multiple physical data centers. For example, the techniques may readily be applied to support usage of PIM-SM where provider edge (PE) routers of the EVPN operate as gateways between the EVPN and the VXLAN spanning the data center interconnect.

公开(公告)号：US20160119156A1

公开(公告)日：2016-04-28

申请号：US14580185

申请日：2014-12-22

Applicant: Juniper Networks, Inc .

Inventor： John E. Drake ,  Zhaohui Zhang ,  Wen Lin ,  Tapraj Singh

IPC: H04L12/18 ,  H04L12/761

CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L12/4641 ,  H04L12/4654 ,  H04L45/16

Abstract: Techniques are described for utilizing Protocol Independent Multicast Sparse Mode (PIM-SM) to transport BUM (broadcast, unknown unicast, and multicast) traffic in a Virtual Extensible LAN (VXLAN) underlay of a data center, where the BUM traffic is received on active-active, multi-homed Ethernet virtual private network (EVPN) interconnects between multiple physical data centers. For example, the techniques may readily be applied to support usage of PIM-SM where provider edge (PE) routers of the EVPN operate as gateways between the EVPN and the VXLAN spanning the data center interconnect.

Abstract translation: 描述了利用协议无关组播稀疏模式（PIM-SM）来在数据中心的虚拟可扩展LAN（VXLAN）底层传输BUM（广播，未知单播和多播）业务的技术，其中BUM业务被接收在活动的 多个物理数据中心之间的主动，多归位以太网虚拟专用网（EVPN）互连。 例如，这些技术可以容易地应用于支持EVPN的提供商边缘（PE）路由器作为跨越数据中心互连的EVPN和VXLAN之间的网关的PIM-SM的使用。