US 10,764,173 B2 · Routing control method, device, and system

Abstract

A controller, including a processor and a non-transitory computer-readable storage medium storing a program to be executed by the processor for managing a first autonomous system (AS), the program including instructions to receive a first Border Gateway Protocol (BGP) routing message, determine a destination node, the destination node belonging to the first AS, determine, according to a node that sends the first BGP routing message, whether to perform incoming-traffic adjustment and control, allocate a source node from a second AS directly connected to the first AS, obtain a preferred path between the source and destination nodes according to a network topology, determine a first BR and a second BR on the preferred path, and send a routing control message to a specified BR belonging to the first AS instructing the specified BR to use the first BR as a next hop for packet forwarding of the second BR.

Claims24

Dependent claims

A controller, comprising:

a processor configured to:
determine a first border router (BR) and a second BR, wherein the first BR belongs to a first autonomous system (AS) and belongs to an inter-domain topology between BRs of the first AS and a second AS, and the second BR belongs to the second AS and belongs to the inter-domain topology;
and
a communications interface configured to send a routing control message to the first BR, wherein the routing control message comprises an identifier of the second BR and an AS quantity, wherein the routing control message instructs the first BR to, when advertising a Border Gateway Protocol (BGP) routing message to the second AS, process the BGP routing message according to the identifier of second BR and the AS quantity, wherein the first BR processing the BGP routing message includes increasing the AS quantity in an AS-path attribute value carried in the BGP routing message, and wherein the routing control message is a BGP update message.

1 more element

A routing control method, comprising:

determining a first border router (BR) and a second BR, by a controller, wherein the first BR belongs to a first autonomous system (AS) and belongs to an inter-domain topology between BRs of the first AS and a second AS, and the second BR belongs to the second AS and belongs to the inter-domain topology;
and
sending a routing control message to the first BR, by the controller, wherein the routing control message comprises an identifier of the second BR and an AS quantity, the routing control message instructs the first BR to, when advertising a Border Gateway Protocol (BGP) routing message to the second AS, process the BGP routing message according to the identifier of the second BR and the AS quantity, wherein the processing includes increasing the AS quantity in an AS-path attribute value carried in the BGP routing message, wherein the routing control message is a BGP update message.

Dependencies are inferred from the claim text.

Routing control method, device, and system

Life of this patent

Routing control method, device, and system

Life of this patent

Abstract

Claims24