公开(公告)号：US11991076B1

公开(公告)日：2024-05-21

申请号：US17377607

申请日：2021-07-16

Applicant: Cisco Technology, Inc.

Inventor： Vengada Prasad Govindan ,  Manikandan Panchanathan ,  Ravi Kiran Chintallapudi ,  Alfred C. Lindem

IPC: H04L45/02 ,  H04L12/18 ,  H04L45/58

CPC classification number: H04L45/58 ,  H04L12/18

Abstract: According to certain embodiments, a router comprises one or more processors and one or more computer-readable non-transitory storage media. The one or more computer-readable non-transitory storage media comprise instructions that, when executed by the one or more processors, cause one or more components of the router to perform operations comprising determining an occurrence of one or more network events associated with a multicast service, generating route exchange information associated with the multicast service locally by the router based on the one or more network events, and using the route exchange information locally to configure the router.

公开(公告)号：US20160261485A1

公开(公告)日：2016-09-08

申请号：US15156215

申请日：2016-05-16

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Alvaro E. Retana ,  James L. Ng ,  Abhay Roy ,  Alfred C. Lindem ,  Sina Mirtorabi ,  Timothy M. Gage ,  Syed Khalid Raza

IPC: H04L12/755 ,  H04L12/801 ,  H04L12/751 ,  H04L12/773

CPC classification number: H04L45/021 ,  H04L45/02 ,  H04L45/025 ,  H04L45/54 ,  H04L45/60 ,  H04L47/10 ,  H04L63/0407

Abstract: In one embodiment, a first router determines whether an interface coupling the first router to one or more second routers is transit-only. When the interface is transit-only, the first router generates an Open Shortest Path First (OSPF) Link State Advertisement (LSA) that includes an address for the interface and a designated network mask. The designated network mask operates as a transit-only identification that indicates the address should not be installed in a Routing Information Base (RIB) upon receipt of the OSPF LSA at the one or more second routers. When the network is not transit-only, the first router generates an OSPF LSA that includes the address for the interface but does not include the designated network mask, to permit installation of the address in a RIB upon receipt of the OSPF LSA at the one or more second routers.

Abstract translation: 在一个实施例中，第一路由器确定将第一路由器耦合到一个或多个第二路由器的接口是否只是转接。 当接口只有传输时，第一个路由器生成包含接口地址和指定网络掩码的开放最短路径优先（OSPF）链路状态通告（LSA）。 指定的网络掩码作为仅传输标识操作，其指示在一个或多个第二路由器上接收到OSPF LSA时，该地址不应安装在路由信息库（RIB）中。 当网络不传输时，第一个路由器生成包含接口地址但不包括指定网络掩码的OSPF LSA，以便在接收到OSPF LSA时在一个RIB中安装该地址 或更多的第二路由器。

公开(公告)号：US10225174B2

公开(公告)日：2019-03-05

申请号：US15156215

申请日：2016-05-16

Applicant: Cisco Technology, Inc.

Inventor： Yi Yang ,  Alvaro E. Retana ,  James L. Ng ,  Abhay Roy ,  Alfred C. Lindem ,  Sina Mirtorabi ,  Timothy M. Gage ,  Syed Khalid Raza

IPC: H04L12/751 ,  H04L12/755 ,  H04L12/741 ,  H04L12/773 ,  H04L12/801 ,  H04L29/06

Abstract: In one embodiment, a first router determines whether an interface coupling the first router to one or more second routers is transit-only. When the interface is transit-only, the first router generates an Open Shortest Path First (OSPF) Link State Advertisement (LSA) that includes an address for the interface and a designated network mask. The designated network mask operates as a transit-only identification that indicates the address should not be installed in a Routing Information Base (RIB) upon receipt of the OSPF LSA at the one or more second routers. When the network is not transit-only, the first router generates an OSPF LSA that includes the address for the interface but does not include the designated network mask, to permit installation of the address in a RIB upon receipt of the OSPF LSA at the one or more second routers.