WO2013060002A1 - Procédé et appareil de diminution de charge - Google Patents

Procédé et appareil de diminution de charge Download PDF

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Publication number
WO2013060002A1
WO2013060002A1 PCT/CN2011/081347 CN2011081347W WO2013060002A1 WO 2013060002 A1 WO2013060002 A1 WO 2013060002A1 CN 2011081347 W CN2011081347 W CN 2011081347W WO 2013060002 A1 WO2013060002 A1 WO 2013060002A1
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WO
WIPO (PCT)
Prior art keywords
multicast
preset
registration
router
packet
Prior art date
Application number
PCT/CN2011/081347
Other languages
English (en)
Chinese (zh)
Inventor
郭涛
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/081347 priority Critical patent/WO2013060002A1/fr
Priority to CN201180002160.4A priority patent/CN103503370A/zh
Publication of WO2013060002A1 publication Critical patent/WO2013060002A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/16—Multipoint routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for reducing load. Background technique
  • the multicast source and the designated DR router When connected, the DR router periodically sends an empty registration Nun-Register to the RP (Rendezvous Point) router, and then the RP router sends back a Register Stop message to the DR router.
  • the DR router needs to periodically send a large number of Nun-Register packets to the RP router. Then the RP router needs to send a large number of Register Sto packets to the DR router.
  • the embodiment of the invention provides a method and a device for reducing the load.
  • the load pressure of the multicast packets on the router can be effectively reduced, and the multicast group that can be carried in the network is improved. Quantity.
  • a method of load reduction including:
  • the DR router receives the multicast data sent by the multicast source, and generates a multicast route according to the multicast data.
  • the DR router generates an empty registration message according to the multicast route;
  • the DR router packs the multicast source address and the multicast group address of the at least two empty registration messages in the same first preset message;
  • a device for reducing load comprising:
  • a receiving generating unit configured to receive multicast data sent by the multicast source, and generate a multicast route according to the multicast data
  • a generating unit configured to generate an empty registration message according to the multicast route
  • a processing unit configured to package the received multicast source address and the multicast group address of the at least two the null registration messages in the same first preset message
  • a sending unit configured to send the first preset message to the RP router.
  • the method and device for reducing load first receive multicast data sent by a multicast source, and generate a multicast route according to the multicast data; and then generate an empty registration message according to the multicast route,
  • the multicast source address and the multicast group address of the generated at least two of the vacant registration packets are encapsulated in the same first preset packet, and the first preset packet is sent to the RP router.
  • a large number of Null-Registers and Regis ter S-ports transmitted between the DR router and the RP router increase the load pressure of the DR router and the RP router, thereby severely limiting the network.
  • the DR router is configured to package the generated at least two empty registration packets, and when the number of the accessed multicast groups increases, the multicast packet is effectively reduced.
  • the resulting load pressure increases the number of multicast groups that can be carried in the network.
  • Embodiment 1 is a flowchart of a method for reducing load according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a device for reducing load according to Embodiment 1 of the present invention.
  • FIG. 3 is a flowchart of a method for reducing load according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a device for reducing load according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of a first preset packet type being an empty registration packet type according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic diagram of a format of a first preset packet when the type of the first preset packet is Batch-Register according to the second embodiment of the present invention
  • FIG. 7 is a schematic diagram of a format of a second preset packet when the second preset packet type is a registration stop packet type according to the second embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a second preset packet format when the second preset packet type is Batch-Register Stop according to the second embodiment of the present invention. detailed description
  • Embodiment 1 The method and apparatus for load balancing according to the embodiment of the present invention are described in detail below with reference to the accompanying drawings.
  • This embodiment provides a method for reducing a load. As shown in FIG. 1, the method includes:
  • the DR router receives the multicast data sent by the multicast source, and generates a multicast route according to the multicast data.
  • the DR router determines whether the multicast data is correctly configured on the DR router.
  • a multicast route is generated when the multicast data is correctly configured on the DR router.
  • the DR router generates an empty registration message according to the multicast route.
  • the DR router packages the multicast source address and the multicast group address of the at least two of the null registration messages in the same first preset message.
  • the number of the null registration packets is determined by the MTU (Maximum Transmission Unit) of the sender interface of the DR router that sends the first preset message, and the MTU of the sender interface is larger.
  • the upper limit of the number of empty registration messages that can be packaged will also increase accordingly.
  • the MTU of the sender interface is small, the upper limit of the number of empty registration packets that can be packed is also reduced accordingly.
  • the RP router After receiving the first preset packet, the RP router maintains the state of multiple multicast sources in the first preset packet. At the same time, the RP routers package the multicast source address and the multicast group address of the at least two registration stop messages in the same second preset packet, and send the second preset packet to the DR router. .
  • the present embodiment provides a device for reducing load.
  • the device for reducing load includes: a receiving generating unit 21, a generating unit 22, a processing unit 23, and a transmitting unit 24.
  • the receiving generating unit 21 is configured to receive multicast data sent by the multicast source, and generate a multicast route according to the multicast data.
  • the DR router determines whether the multicast data is correctly configured on the DR router.
  • a multicast route is generated when the multicast data is correctly configured on the DR router.
  • the generating unit 22 is configured to generate an empty registration message according to the multicast route.
  • the processing unit 2 3 is configured to package the multicast source address and the multicast group address of the received at least two of the empty registration messages in the same first preset message.
  • the number of the null registration packets is determined by the MTU (Maximum Transm issi on Un it) of the sender interface of the DR router that sends the first preset message, when the sender interface is When the MTU is large, the upper limit of the number of empty registration packets that can be packaged is also increased accordingly. When the MTU of the sender interface is small, the upper limit of the number of empty registration packets that can be packed is also reduced accordingly.
  • MTU Maximum Transm issi on Un it
  • the sending unit 24 sends the first preset message to the RP router.
  • the RP After receiving the first preset packet, the RP maintains the state of multiple multicast sources in the first preset packet.
  • the RP routers package the multicast source address and the multicast group address of the at least two registration stop messages in the same second preset packet, and send the second preset packet to the DR router. .
  • the method and device for reducing load according to the embodiment of the present invention first receive multicast data sent by a multicast source, and generate a multicast route according to the multicast data; and then generate an empty registration message according to the multicast route, Multicast source address and group of each of the generated at least two empty registration messages
  • the broadcast group address is packaged in the same first preset message, and finally the first preset message is sent to
  • the DR router is configured to package the generated at least two empty registration packets, and when the number of the accessed multicast groups increases, the multicast packet is effectively reduced. The resulting load pressure increases the number of multicast groups that can be carried in the network.
  • This embodiment provides a method for reducing load. As shown in FIG. 3, the method includes: 301: A DR router receives multicast data sent by a multicast source, and generates a multicast route according to the multicast data.
  • the DR router detects a maximum transmission unit MTU of the sender interface corresponding to the first preset packet.
  • the DR router determines, according to the detected MTU of the sending end interface corresponding to the first preset packet, the number of empty registration packets to be packaged.
  • the number of the null registration packets is determined by the MTU (Maximum Transm ssi on Un it) of the sender interface of the DR router that sends the first preset message, when the sender interface is When the MTU is large, the upper limit of the number of empty registration packets that can be packaged is also increased accordingly. When the MTU of the sender interface is small, the upper limit of the number of empty registration packets that can be packed is also reduced accordingly.
  • MTU Maximum Transm ssi on Un it
  • the DR router generates an empty registration message according to the multicast route.
  • the DR router encapsulates the generated multicast source address and the multicast group address of the at least two the null registration messages in the same first preset message.
  • the type of the first preset packet is an empty registration packet type, including: a number of packets, a statistical field, and a multicast source address and a multicast group address of at least two empty registrations.
  • the format of the first preset message is to change the Re served field in the existing empty registration message format to Ent ry count, and add at least two empty registrations in the existing empty registration format. Their respective multicast source addresses and multicast group addresses.
  • the Entry count indicates how many empty registrations are included in the first preset text, and Reserved indicates reservation.
  • the first preset message format is as shown in FIG. 5.
  • the type of the first preset message is Batch-Register, and includes: a multicast source address and a multicast group address of at least two empty registrations.
  • the first preset message is to set the type of the existing registration stop message format to a new batch registration Batch-Register type, and add at least two empty registrations in the existing registration stop format.
  • the respective multicast source address and multicast group address of the text are to set the type of the existing registration stop message format to a new batch registration Batch-Register type, and add at least two empty registrations in the existing registration stop format.
  • the first preset message format is as shown in FIG. 6.
  • the DR router sends the first preset packet to the RP router.
  • the DR router receives the second preset packet sent by the RP router.
  • the DR After receiving the second preset packet, the DR refreshes the registration of the at least two registration source stops and the multicast group address corresponding to the at least two registration stops in the second preset message. Timer.
  • the second preset packet type is a registration stop packet type, and includes: a packet number statistics field, a multicast source address and a multicast group address of at least two registration stops.
  • the second preset message is changed from the Reserved in the existing registration stop message format to the Entry count, and the second preset text includes the multicast source address of each of the at least two registration stop messages. Multicast group address.
  • the Entry count indicates how many registration stop messages are included in the second preset, and Reserved indicates reservation.
  • the second preset message format is as shown in FIG. 7.
  • the type of the second preset message is a batch registration stop Batch-Register Stop, including: at least two registration stop 4 respective multicast source addresses and multicast group addresses.
  • the second preset message format is that the type of the existing registration stop message format is set to a new type Batch-Register Stop, and the second preset message includes at least two registration stops. Multicast source address and multicast group address.
  • the second preset message format is as shown in FIG. 8 . 308.
  • the RP router forwards the first preset packet to the designated RP according to the preset forwarding configuration information.
  • the embodiment further provides a device for reducing load.
  • the device includes: a receiving generating unit 41, a generating unit 42, a processing unit 43, a sending unit 44, a detecting unit 45, a determining unit 46, and a receiving unit 47.
  • the receiving generating unit 41 is configured to receive multicast data sent by the multicast source, and generate a multicast route according to the multicast data.
  • the generating unit 42 is configured to generate an empty registration message according to the multicast route.
  • the processing unit 43 is configured to package the multicast source address and the multicast group address of the generated at least two of the empty registration messages in the same first preset message.
  • the type of the first preset packet is an empty registration packet type, including: a number of packets, a statistical field, and a multicast source address and a multicast group address of at least two empty registrations.
  • the format of the first preset message is to change the Reserved field in the existing empty registration message format to Entry Count, and add at least two empty registrations in the existing empty registration format. Multicast source address and multicast group address.
  • the Entry count indicates how many empty registrations are included in the first preset message, and Reserved indicates reservation.
  • the first preset message format is as shown in FIG. 5.
  • the type of the first preset message is Batch-Register, and includes: a multicast source address and a multicast group address of at least two empty registrations.
  • the first preset message is a new batch registration Batch-Register type in the type of the existing registration stop message format, and at least two empty registrations are added in the existing registration stop format.
  • the respective multicast source address and multicast group address of the text are included in the existing registration stop format.
  • the first preset message format is as shown in FIG. 6.
  • the processing unit 43 While the processing unit 43 is being used, the detecting unit 45 and the determining unit 46 are called.
  • the detecting unit 45 is configured to detect a maximum transmission unit MTU of the sender interface corresponding to the first preset message.
  • the determining unit 46 is configured to determine, according to the detected MTU of the sender interface corresponding to the first preset message, the number of null registration packets to be packaged.
  • the sending unit 44 is configured to send the first preset message to the RP router.
  • the receiving unit 47 is configured to receive a second preset message sent by the RP router, where the second preset message carries at least two existing multicast source addresses and multicast group addresses of the existing registration stop message .
  • the DR stops the registration stop timer of the plurality of registration stop messages included in the second preset message after receiving the second preset message.
  • the second preset packet type is a registration stop packet type, and includes: a packet number statistics field, a multicast source address and a multicast group address of at least two registration stops.
  • the DR After receiving the second preset packet, the DR refreshes the registration of the at least two registration source stops and the multicast group address corresponding to the at least two registration stops in the second preset message. Timer.
  • the second preset packet type is a registration stop packet type, and includes: a packet number statistics field, a multicast source address and a multicast group address of at least two registration stops.
  • the second preset message is changed from the Reserved in the existing registration stop message format to the Entry count, and the second preset text includes the multicast source address of each of the at least two registration stop messages. Multicast group address.
  • the Entry count indicates how many registration stop messages are included in the second preset, and Reserved indicates reservation.
  • the second preset message format is as shown in FIG. 7.
  • the type of the second preset message is a batch registration stop Batch-Register Stop, including: at least two registration stops, the respective multicast source address and the multicast group address.
  • the second preset message format is that the type of the existing registration stop message format is set to a new type Batch-Register Stop, and the second preset message includes at least two registration stops. Multicast source address and multicast group address.
  • the second preset message format is as shown in FIG. 8 .
  • the method and device for reducing load provided by the embodiment of the present invention first receive multicast data sent by a multicast source, and according to the multicast data Generating a multicast route, and then generating an empty registration message according to the multicast route, and packaging the generated multicast source address and the multicast group address of the at least two of the empty registration packets in the same first preset.
  • the first preset message is finally sent to the RP router.
  • a large number of Nun-Regist messages and Registration messages transmitted between the DR router and the RP router in the prior art increase the load pressure of the DR router and the RP router, thereby severely limiting the groups that can be carried in the network. The number of broadcast groups.
  • the DR router is configured to package the generated at least two empty registration packets, and when the number of the accessed multicast groups increases, the multicast packet is effectively reduced.
  • the resulting load pressure increases the number of multicast groups that can be carried in the network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un procédé et un appareil de diminution de charge, concernant le domaine technique des communications, et améliorant le nombre de groupes de diffusions groupées qui peuvent être pris en charge dans un réseau tout en diminuant efficacement la pression de charge générée sur un routeur par un message de diffusions groupées quand le nombre de groupes de diffusions groupées qui y accèdent augmente. Le procédé consiste à : recevoir d'abord des données de diffusions groupées envoyées par une source de diffusions groupées et générer une route de diffusions groupées conformément aux données de diffusions groupées ; puis générer un message d'enregistrement nul conformément à la route de diffusions groupées et empaqueter l'adresse de source de diffusions groupées et l'adresse de groupe de diffusions groupées de chaque message parmi au moins deux messages d'enregistrement nuls générés en un premier message préétabli identique et envoyer finalement le premier message préétabli à un routeur RP. La présente invention s'applique au domaine technique des communications.
PCT/CN2011/081347 2011-10-26 2011-10-26 Procédé et appareil de diminution de charge WO2013060002A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2011/081347 WO2013060002A1 (fr) 2011-10-26 2011-10-26 Procédé et appareil de diminution de charge
CN201180002160.4A CN103503370A (zh) 2011-10-26 2011-10-26 负载降低的方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/081347 WO2013060002A1 (fr) 2011-10-26 2011-10-26 Procédé et appareil de diminution de charge

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WO2013060002A1 true WO2013060002A1 (fr) 2013-05-02

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1503507A (zh) * 2002-11-26 2004-06-09 ��Ϊ�������޹�˾ 实现组播源到汇聚点注册的方法
CN101547110A (zh) * 2009-05-14 2009-09-30 杭州华三通信技术有限公司 一种组播源的注册方法、系统和设备
CN101808004A (zh) * 2010-03-23 2010-08-18 中兴通讯股份有限公司 一种实现任意播汇聚点机制的方法和系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100550757C (zh) * 2006-12-26 2009-10-14 上海贝尔阿尔卡特股份有限公司 组播通信网络中联合注册的方法及装置
CN101242342B (zh) * 2007-02-05 2012-09-19 华为技术有限公司 组播方法及组播路由方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1503507A (zh) * 2002-11-26 2004-06-09 ��Ϊ�������޹�˾ 实现组播源到汇聚点注册的方法
CN101547110A (zh) * 2009-05-14 2009-09-30 杭州华三通信技术有限公司 一种组播源的注册方法、系统和设备
CN101808004A (zh) * 2010-03-23 2010-08-18 中兴通讯股份有限公司 一种实现任意播汇聚点机制的方法和系统

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