公开(公告)号：US12184532B1

公开(公告)日：2024-12-31

申请号：US18381607

申请日：2023-10-18

Applicant: Juniper Networks, Inc.

Inventor： Suraj Narayan Sharma ,  Hitesh Mali

IPC: H04L45/02 ,  H04L61/5069

Abstract: An autonomous system border router (ASBR) provided in a domain in which routers share an anycast address, may perform a method comprising: (a) receiving, from an exterior Border Gateway Protocol (eBGP) peer, first reachability information for a first prefix, the first reachability information including a first next hop (NH) address; (b) communicating first link state information about the first prefix to another router in the domain, the first link state information associating the first prefix with the anycast address; (c) receiving, from an eBGP peer, second reachability information for a second prefix, the second reachability information including a second next hop (NH) address; and (d) communicating second link state information about the second prefix to the other router in the domain, the second link state information associating the second prefix with the anycast address. This effectively reduces the number of next hops related to a prefix learned by two or more ASBRs (e.g., one or more spine routers in a Clos of an aggregate spine) via eBGP, stored as forwarding information on a non-ASBR in an IGP domain (e.g., on a leaf node in a Clos of an aggregate spine).

公开(公告)号：US11848852B1

公开(公告)日：2023-12-19

申请号：US17581341

申请日：2022-01-21

Applicant: Juniper Networks, Inc.

Inventor： Suraj Narayan Sharma ,  Hitesh Mali

IPC: H04L45/02 ,  H04L61/5069

CPC classification number: H04L45/02 ,  H04L45/04 ,  H04L61/5069

Abstract: An autonomous system border router (ASBR) provided in a domain in which routers share an anycast address, may perform a method comprising: (a) receiving, from an exterior Border Gateway Protocol (eBGP) peer, first reachability information for a first prefix, the first reachability information including a first next hop (NH) address; (b) communicating first link state information about the first prefix to another router in the domain, the first link state information associating the first prefix with the anycast address; (c) receiving, from an eBGP peer, second reachability information for a second prefix, the second reachability information including a second next hop (NH) address; and (d) communicating second link state information about the second prefix to the other router in the domain, the second link state information associating the second prefix with the anycast address. This effectively reduces the number of next hops related to a prefix learned by two or more ASBRs (e.g., one or more spine routers in a Clos of an aggregate spine) via eBGP, stored as forwarding information on a non-ASBR in an IGP domain (e.g., on a leaf node in a Clos of an aggregate spine).

公开(公告)号：US11277328B1

公开(公告)日：2022-03-15

申请号：US16995714

申请日：2020-08-17

Applicant: Juniper Networks, Inc.

Inventor： Suraj Narayan Sharma ,  Hitesh Mali

IPC: H04L12/751 ,  H04L45/02 ,  H04L61/5069 ,  H04L45/00

Abstract: An autonomous system border router (ASBR) provided in a domain in which routers share an anycast address, may perform a method comprising: (a) receiving, from an exterior Border Gateway Protocol (eBGP) peer, first reachability information for a first prefix, the first reachability information including a first next hop (NH) address; (b) communicating first link state information about the first prefix to another router in the domain, the first link state information associating the first prefix with the anycast address; (c) receiving, from an eBGP peer, second reachability information for a second prefix, the second reachability information including a second next hop (NH) address; and (d) communicating second link state information about the second prefix to the other router in the domain, the second link state information associating the second prefix with the anycast address. This effectively reduces the number of next hops related to a prefix learned by two or more ASBRs (e.g., one or more spine routers in a Clos of an aggregate spine) via eBGP, stored as forwarding information on a non-ASBR in an IGP domain (e.g., on a leaf node in a Clos of an aggregate spine).