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A route matching method, information sending method and device

A matching method and routing technology, applied in the field of communication, can solve the problems of high resource overhead and low efficiency of multicast joining

Active Publication Date: 2022-04-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method will have the problems of low multicast joining efficiency and large resource overhead

Method used

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  • A route matching method, information sending method and device
  • A route matching method, information sending method and device
  • A route matching method, information sending method and device

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Embodiment Construction

[0033] The MVPN is a service that supports multiple point-to-multipoint (point to multipoint, P2MP) multicast services in an operator network. see figure 1 , which is a schematic diagram of the network architecture in the MVPN scenario. exist figure 1 In this example, the network architecture includes a multicast source (source), a customer edge (CE) 1 communicating with the multicast source, PE1, a provider (provider, P) node, PE2, PE3, CE2, CE3, and CE2 One or more multicast receivers for communication, and one or more multicast receivers for communication with CE3. CE1 is connected to PE1, PE1 is connected to P node, P node is connected to PE2 and PE3 respectively, PE2 is connected to CE2, and PE3 is connected to CE3. CE1, CE2, CE3, PE1, P node, PE2 and PE3 may be routers or switches. PE1, P node, PE2, and PE3 form an Internet Protocol (Internet Protocol, IP) backbone network. Because PE1 is connected to CE1 that communicates with the multicast source, PE1 can also be ...

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Abstract

The application discloses a route matching method and device, which improve the efficiency of multicast joining and reduce resource overhead. The method includes: the first operator edge PE node receives indication information from the second PE node, the indication information is used to indicate inclusion matching, and inclusion matching includes combining the acquired multicast source group information with the acquired N1 selective operator groups The multicast service interface S‑PMSI automatically discovers AD routes for matching. The multicast source group information includes multicast source S1 and multicast group G1. N1 is an integer greater than or equal to 2. N1 S‑PMSI AD routes include the first S‑PMSI AD route. PMSI AD route and the second S-PMSI AD route, the first S-PMSI AD route contains at least one wildcard, the second S-PMSI AD route includes S1 and G1; the first PE node matches the multicast source group according to the instruction information The N2 S-PMSI AD routes matching the information are processed to join the N2 tunnels with the second PE node, N2 is greater than or equal to 2 and less than or equal to N1, and one of the N2 tunnels is connected to the N2 S-PMSI AD One S‑PMSI AD route corresponds in the route.

Description

[0001] This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on February 28, 2020, with application number 202010134746.7, and the title of the invention is "A Routing Update Method, Device, and System", the entire contents of which are incorporated herein by reference In this application. technical field [0002] The present application relates to the communication field, in particular to a route matching method, an information sending method and a device. Background technique [0003] Selective provider multicast service interface (selective provider multicast service interface, S-PMSI) automatic discovery (Auto-discovery, AD) routing is an important signaling of multicast virtual private network (Multicast Virtual Private Network, MVPN). "Matching and processing" S-PMSI AD routing on the provider edge (provider edge, PE) node is a key step in MVPN. TE), multicast extension of Label Distribute Protocol (mLDP...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/16H04L45/745H04L45/748H04L12/46H04L45/74
CPCH04L45/16H04L45/745H04L45/748H04L12/4633H04L12/4641H04L45/54H04L12/46
Inventor 谢经荣胡华威
Owner HUAWEI TECH CO LTD