WO2014146576A1 - Procédé et dispositif pour détecter la bande passante disponible d'une liaison ptn - Google Patents

Procédé et dispositif pour détecter la bande passante disponible d'une liaison ptn Download PDF

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Publication number
WO2014146576A1
WO2014146576A1 PCT/CN2014/073674 CN2014073674W WO2014146576A1 WO 2014146576 A1 WO2014146576 A1 WO 2014146576A1 CN 2014073674 W CN2014073674 W CN 2014073674W WO 2014146576 A1 WO2014146576 A1 WO 2014146576A1
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WO
WIPO (PCT)
Prior art keywords
bandwidth
link
cir
available bandwidth
port
Prior art date
Application number
PCT/CN2014/073674
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English (en)
Chinese (zh)
Inventor
洪伟栋
张锋
Original Assignee
中兴通讯股份有限公司
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.)
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Publication of WO2014146576A1 publication Critical patent/WO2014146576A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0876—Network utilisation, e.g. volume of load or congestion level
    • H04L43/0882—Utilisation of link capacity

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for detecting an available bandwidth of a Packet Transport Network (PTN) link.
  • PTN Packet Transport Network
  • an EMS network can have more than ten PTN devices per day, which is still in the form of thick line management, and many devices are idling.
  • PTN expansion is stopped. Users cannot understand the available bandwidth on the current network link, and it is not reasonable to save resources on each link. This causes a lot of resources to be wasted, and the creation efficiency of PTN services cannot be obtained. Upgrade.
  • an object of the embodiments of the present invention is to provide a method and apparatus for detecting available bandwidth of a PTN link, and more specifically, when creating a PTN service, according to a user selected A/Z endpoint.
  • the network element detects the available bandwidth resources of all the links. Therefore, you can manually select a link that has a relatively idle bandwidth, or avoid a link with a relatively busy bandwidth. You can use the resources of the link and improve the PTN.
  • the method for detecting the available bandwidth of a PTN link in the embodiment of the present invention includes the following steps:
  • the pseudowire is not configured with CIR, the CIR of the pseudowire takes a value of zero.
  • the tunnel not configured with CIR, all pseudowires carried by the tunnel are not configured with CIR, SUM
  • the method further includes: step 4) searching for all reachable paths by using a known path search algorithm according to the selected endpoint of the user, and then calculating the current available bandwidth of all reachable paths, and according to the current of all reachable paths The result of comparing the available bandwidth results in the currently available bandwidth of the best path and the best path between the selected endpoints.
  • the currently available bandwidth MIN of the reachable path (the current available bandwidth of all links through the path).
  • the current available bandwidth MA of the best path the currently available bandwidth of all reachable paths).
  • step 1) it is further included to determine whether there is a path between the selected endpoints of the user, and if there is no path between the selected endpoints of the user, an abnormality display is performed.
  • an abnormal display is performed.
  • the currently available bandwidth of the link and the currently available bandwidth of the reachable path are all displayed on a user interface of the network management system.
  • the apparatus for detecting the available bandwidth of the PTN link includes a bandwidth resource calculation module, where the bandwidth resource calculation module is configured to calculate a chain according to a user selected endpoint and a predetermined algorithm corresponding to the port condition.
  • the bandwidth of the road reads the CIR values of all tunnels and pseudowires carried on the link, and calculates the current available bandwidth of the link according to a predetermined algorithm.
  • the bandwidth resource calculation module includes a tunnel and a pseudowire submodule for querying a link and a current available bandwidth submodule for calculating a link; the query submodule is configured to read all tunnels and pseudowires carried on the link.
  • the calculation sub-module is configured to calculate a link bandwidth according to a user-selected endpoint and a predetermined algorithm corresponding to the port condition, and calculate a chain according to the link bandwidth, the CIR value of the tunnel and the pseudowire The current available bandwidth of the road.
  • the device further includes a service creation module, where the service creation module is configured to select an endpoint, and search for all reachable paths by using a known path search algorithm according to the selected endpoint, and calculate current available of all reachable paths. Bandwidth, based on the comparison of the currently available bandwidth of all reachable paths, results in the currently available bandwidth of the best path and the best path between the selected endpoints.
  • the service creation module includes a calculation path bandwidth sub-module, a calculation optimal path sub-module, and a data delivery sub-module; the calculation path bandwidth sub-module is configured to search out according to the selected endpoint using a known path search algorithm.
  • FIG. 1 is a schematic diagram of a networking of a network management system
  • FIG. 2 is a flowchart of a method for detecting available bandwidth resources of a link in the first embodiment
  • FIG. 3 is an automatic selection of an optimal bandwidth resource when a PTN service is created in the second embodiment.
  • FIG. 4 is a schematic structural diagram of an available bandwidth resource detecting apparatus of a link in the third embodiment;
  • FIG. 5 is a schematic structural diagram of an apparatus for automatically selecting an optimal bandwidth resource path in the fourth embodiment.
  • a first embodiment of the present invention is a method for detecting the available bandwidth of a PTN link, as shown in step S103, step S104, and step S105 in FIG. 2: Step S103, according to the endpoint selected by the user, and the selection and port.
  • the link bandwidth MIN (A port physical bandwidth, Z port physical bandwidth) means that the link bandwidth is equal to the minimum of the A port physical bandwidth and the Z port physical bandwidth;
  • Link bandwidth MA (C port of the A port, Z The port CIR) means that the link bandwidth is equal to the maximum of the CIR of the A port and the CIR of the Z port.
  • Step S104 The network administrator queries all tunnels and pseudowires carried by all links, and reads CIR values of the tunnel and the pseudowire.
  • a hierarchical list can be generated, and such an example table is shown in this embodiment.
  • Step S105 calculating a current available bandwidth of each link according to a predetermined algorithm.
  • SUM CIR of a pseudowire carried by a tunnel without a CIR
  • the current available bandwidth value of the link is calculated according to the link bandwidth calculated in S103 and the CIR value of the tunnel and the pseudowire read in S104, which can be displayed on the user side interface of the network management, as shown in FIG. .
  • Step S201 On the human-computer interaction interface on the network management side, the user selects A/ Z endpoint network element; Step S201 is the same as step S101 in Embodiment 1.
  • Step S202 The network management first determines whether there is no path between the A/Z network elements selected by the user. If yes, step S211 is performed; otherwise, step S203 is performed.
  • Step S202 is the same as step S102 in the first embodiment.
  • the network management system queries all the tunnels and pseudowires carried by all the links, and reads the CIR values of the tunnels and the pseudowires to generate a hierarchical list. For the style of the hierarchical list, refer to the first embodiment.
  • the current available bandwidth of each link is calculated. For the algorithm, refer to the first embodiment.
  • step S206 if the available bandwidth of all reachable paths between the selected A/Z endpoint network elements is 0, that is, the optimal path bandwidth is 0, then go to step S211, and the user is prompted with an abnormality on the network management side.
  • step S207 if the created service sets the bandwidth requirement, and the service requires 01 > the best available bandwidth of the best path, the user is prompted for the current maximum available bandwidth value and advises the user to reset the bandwidth requirement, and the process returns to step S205.
  • step S208 the network management system sends the configuration data to the device.
  • step S209 it is determined whether the sending device fails, and if yes, step S208 is performed, otherwise the task ends successfully.
  • Embodiment 3 The third embodiment of the present invention corresponds to the method described in Embodiment 1, and a device for detecting available bandwidth of a PTN link, as shown in FIG. 3, includes a bandwidth resource calculation module 30, and the bandwidth resource calculation module 30 is configured to calculate a link bandwidth according to a user selected endpoint and a predetermined algorithm corresponding to the port condition, read CIR values of all tunnels and pseudowires carried on the link, and calculate a current available bandwidth of the link according to a predetermined algorithm.
  • These modules may be modules in a program unit, which may be stored in a memory. The processor can also execute these program units.
  • the bandwidth resource calculation module 30 includes a query sub-module 301 and a calculation sub-module 302.
  • the query sub-module 301 is configured to read CIR values of all tunnels and pseudowires carried on the link;
  • the CIR value of all the tunnels and the pseudowires carried on the network may generate a hierarchical list.
  • the calculation submodule 302 is configured to calculate according to the endpoint selected by the user and the predetermined algorithm corresponding to the port condition.
  • the link bandwidth is calculated, and the current available bandwidth of the link is calculated according to the link bandwidth, the CIR value of the tunnel and the pseudowire, and the algorithm is in accordance with the method described in Embodiment 1.
  • Embodiment 4 The fourth embodiment of the present invention corresponds to the method described in Embodiment 2, and is a device for automatically selecting an optimal bandwidth resource path when creating a PTN service, as shown in FIG. 4, including a bandwidth resource calculation module 30 and an end to The service module 40 is created, and the bandwidth resource calculation module 30 is the same as the bandwidth resource calculation module in the embodiment 3, which has more end-to-end service modules 40 than the device in the embodiment 3, and the end-to-end service is created.
  • the module 40 is configured to perform a path algorithm search according to the selected A/Z endpoint network element (which may also include a necessary link and avoid the link) and the previous available bandwidth, and search for an optimal path (the absolute value of the available bandwidth is the largest). Or the maximum percentage of available bandwidth).
  • the calculation path bandwidth sub-module 401 is configured to search for all reachable paths by using a known path search algorithm according to the selected endpoint, and calculate the currently available bandwidth of all reachable paths; The method in Example 2.
  • the calculation optimal path sub-module 402 is configured to calculate the current available bandwidth of the best path and the best path between the selected endpoints of the user according to the comparison result of the current available bandwidth of all the reachable paths.
  • the above path search supports manually optimizing the idle link, avoiding the busy link, and also automatically searching for the path with the largest absolute value of the available bandwidth or the largest percentage of the available bandwidth.
  • the data sending sub-module 403 interacts with the network element, and sends the data related to the calculated optimal path to the device.
  • the embodiment of the present invention has at least the following advantages: Compared with the existing created service, the embodiment of the present invention provides a method and device for detecting the available bandwidth of the PTN link. On the basis of detecting the available bandwidth of the PTN link, the available bandwidth of the link can be directly displayed on the user interface of the network management system, which fully utilizes the convenience of the network management resource display and the global computing capability, and can even automatically search without user intervention.
  • the path that best meets the requirements is reduced, the network planning investment is reduced, the original resources can be fully and reasonably utilized, the idle links are avoided, the busy links are avoided, and the operation and system processing are simple, which can greatly improve the efficiency of creating the most suitable service.
  • the technical solution provided by the embodiments of the present invention can be applied to the field of communication technologies, and can detect available bandwidth resources of all links according to the A/Z endpoint network element selected by the user, so that the user can select a link with sufficient bandwidth resources. , the most rational use of existing resources.

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

Abstract

La présente invention se rapporte à un procédé et à un dispositif adaptés pour détecter la bande passante disponible d'une liaison PTN. Le procédé selon l'invention consiste : 1) durant la création d'un service PTN, à calculer la bande passante d'une liaison sur la base du point d'extrémité sélectionné par un utilisateur et de la sélection d'un algorithme prédéterminé correspondant à la condition d'un port; 2) à lire les valeurs CIR de tous les tunnels et de toutes les passerelles pseudowire le long de la liaison; 3) enfin, à calculer et à obtenir ainsi la bande passante actuellement disponible de la liaison sur la base de la bande passante de la liaison et des valeurs CIR des tunnels et des passerelles pseudowire. Le dispositif selon l'invention comprend un module de calcul de ressource de bande passante qui est utilisé : pour calculer la bande passante d'une liaison sur la base du point d'extrémité sélectionné par l'utilisateur et de la sélection de l'algorithme prédéterminé correspondant à la condition d'un port; pour lire les valeurs CIR de tous les tunnels et de toutes les passerelles pseudowire qui se trouvent le long de la liaison; et pour calculer et obtenir ainsi la bande passante actuellement disponible de la liaison sur la base de l'algorithme prédéterminé. La présente invention est ainsi apte à détecter les ressources de bande passante disponible de toutes les liaisons, durant la création d'un service PTN, sur la base des éléments d'un réseau d'extrémité à extrémité A à Z sélectionné par un utilisateur. De cette manière, l'utilisateur peut sélectionner une liaison qui dispose de ressources de bande passante suffisantes, et utiliser alors les ressources disponibles de façon adéquate.
PCT/CN2014/073674 2013-03-19 2014-03-19 Procédé et dispositif pour détecter la bande passante disponible d'une liaison ptn WO2014146576A1 (fr)

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CN201310087483.9A CN104065522B (zh) 2013-03-19 2013-03-19 一种侦测ptn链路可用带宽的方法及装置
CN201310087483.9 2013-03-19

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CN105634856B (zh) * 2014-11-21 2020-03-31 中兴通讯股份有限公司 业务性能参数的确定方法及装置
CN106330773A (zh) * 2015-06-17 2017-01-11 中兴通讯股份有限公司 带宽调整方法及装置

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