WO2007048294A1 - Procede de configuration de sources de reseau ip et reseau ip - Google Patents

Procede de configuration de sources de reseau ip et reseau ip Download PDF

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Publication number
WO2007048294A1
WO2007048294A1 PCT/CN2006/001357 CN2006001357W WO2007048294A1 WO 2007048294 A1 WO2007048294 A1 WO 2007048294A1 CN 2006001357 W CN2006001357 W CN 2006001357W WO 2007048294 A1 WO2007048294 A1 WO 2007048294A1
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WIPO (PCT)
Prior art keywords
plane
address
access device
network
interface
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PCT/CN2006/001357
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English (en)
French (fr)
Inventor
Cheng Chen
Original Assignee
Huawei Technologies Co., Ltd.
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Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CN200680013154.8A priority Critical patent/CN101164299B/zh
Publication of WO2007048294A1 publication Critical patent/WO2007048294A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • H04L12/5602Bandwidth control in ATM Networks, e.g. leaky bucket

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to an IP network resource configuration method and an IP network.
  • an access device such as a PC (Personal Computer)
  • accesses the IP network through Ethernet or other access technologies if If the connection between the access device and the IP network fails, the service is interrupted, and the IP network itself ensures reliability through network redundancy and dynamic routing protocols.
  • the networking mode of the access device and the IP bearer network is as shown in Figure 1.
  • the access device may be a device that relies on an IP network for communication, such as a media gateway in the NGN field or a mobile WCDMA/CDMA field, and a softswitch, to inherit and satisfy the high reliability requirements of the traditional PSTN (traditional telephone network) network.
  • the access device usually has an active/standby interface and is connected to the edge router in the IP network through the active and standby links.
  • the link can be Ethernet or POS (PPP is carried on the packet).
  • the NGN service has high QoS (Quality of Service) requirements for the IP bearer network, such as: packet loss rate of 1%, network jitter of 20ms, delay of 100ms, and high reliability requirements, such as: single point failure 50ms recovery service
  • QoS Quality of Service
  • the traditional IP network can no longer meet the requirements, so a special IP network with QoS guarantee and high reliability should be established to carry the NGN service.
  • the prior art adopts the networking method of the A/B plane.
  • the access device such as the media gateway, exits the primary and secondary interfaces, and is respectively connected to two routers of the IP bearer network or On L3 (Layer 3 Ethernet Switch).
  • On L3 Layer 3 Ethernet Switch
  • the two access routers or L3 belong to different planes.
  • the A and B planes can be two logical paths that are mutually backed up, such as MPLS VPN (Multiprotocol Label Switching Virtual Private Network), or a strictly planned mutual backup.
  • MPLS VPN Multiprotocol Label Switching Virtual Private Network
  • Two physical networks Two physical networks.
  • the access device Normally, the access device only allocates services on the IP address of the primary interface. After the service packet is sent from the access device to the router, the router selects a plane to send the packet to the peer access device.
  • the A/B bearer planes selected by the edge routers should be the same. Otherwise, if the A plane is selected on one end and the B plane is selected on the other end, the A/B planes need to forward packets to each other.
  • the active/standby switchover occurs.
  • the slave interface sends the packet to the router and receives the service packet from the standby interface.
  • the access device allocates services only on the primary interface, and the standby interface does not allocate services. Therefore, devices such as routers corresponding to the backup link and the backup link are idle and resource utilization is insufficient.
  • the A/B plane can only be an active/standby relationship, that is, one plane carries 100% of services, and one plane does not carry services, and resource utilization is insufficient;
  • the present invention aims to provide a simple network resource configuration method and an IP network, and the existing active/standby mode is solved by the dual-plane networking technology of load sharing and mutual backup.
  • the problem of insufficient utilization of network resources caused by dual-plane networking and complicated network planning and configuration improves the QoS of the network.
  • the present invention provides a method for configuring an IP network resource, including a plane configuration step, and configuring an A-plane and a B-plane that are connected to each other as a backup relationship, and independently carrying a service plane;
  • the interfaces of the access device are configured to be in the backup relationship, and the IP addresses of the A and B planes of the network are configured to implement the connection with the A plane and the B plane.
  • the service is scheduled to be allocated on the IP addresses of the two interfaces of the access device.
  • the IP network resource configuration method wherein, in the service allocation step, when the IP address of the peer access device is not known, the allocation service is uniformly selected on the IP addresses of the two interfaces of the access device. Business.
  • the service in the service allocation step, when the IP address of the peer access device is known, the service is preferentially assigned to the IP address that belongs to the same plane as the IP address of the peer access device.
  • the above-mentioned IP network resource configuration method wherein, in the service allocation step, the service allocated on the IP address of the peer access device IP address and the IP address of the peer access device belongs to the same plane exceeds the configured bandwidth.
  • the foregoing method for configuring an IP network resource where the method further includes:
  • the above-mentioned IP network resource configuration method wherein the A plane and the B plane are distinguished by a network segment.
  • IP network resource configuration method in which the interfaces of the access device are configured to be mutually backup relationships by using the route priority.
  • the present invention further provides an IP network, including an access device, and an IP bearer network including an A plane and a B plane, where:
  • the A plane and the B plane are connected to each other, and are planes that can independently carry services, and are mutually backup relationships;
  • the access device includes an interface that is in a backup relationship with each other, and is connected to the A plane and the B plane respectively by an IP address that belongs to the A plane and the B plane of the bearer network;
  • the two IP addresses of the interface of the access device are used for the bearer service.
  • the two IP addresses of the interface of the access device are used for the uniform bearer service.
  • the interface that is in backup relationship with the faulty interface is used to receive/send the service of the faulty interface.
  • the above IP network where the IP address of the peer access device is known, and the peer access An IP address whose device IP address belongs to the same plane has a higher priority of the assigned service than another IP address.
  • the interface load balancing and mutual active backup are implemented, and the two interfaces of the access device are respectively connected to the A/B dual plane of the IP bearer network, without knowing the opposite end.
  • the service is evenly distributed on the interfaces of the two planes.
  • the IP address of the peer access device is known, the IP address of the peer IP address is assigned to the same plane as the IP address of the peer IP address. address.
  • FIG. 1 is a schematic diagram of networking of a prior art NGN network
  • FIG. 2 is a schematic diagram of networking of an AGN network using an A/B plane
  • FIG. 3 is a schematic diagram of a networking of the present invention.
  • Figure 4 is a working state diagram of the method of the present invention.
  • Figure 5 is a working state diagram of the method of the present invention.
  • Figure 6 is a flow chart of the method of the present invention.
  • the core idea of the present invention is to provide a method for configuring a network resource, which solves the problem of insufficient network resource utilization caused by the existing dual-plane networking in the active/standby mode by using the dual-plane networking technology of load sharing and mutual backup. Complex configuration issues, etc., help to improve network QoS.
  • the IP network networking structure of the present invention includes: an access device, a first IP bearer subsystem, and a second IP bearer subsystem, where:
  • the first IP bearer subsystem includes an A plane and a pair of Router/L3 connected through the A plane;
  • the second IP bearer subsystem includes a B plane and a pair of Router/L3 connected through the B plane;
  • the first IP bearer subsystem and the first The two IP bearer subsystems are connected through the A plane and the B plane;
  • the A plane and the B plane are connected to each other and both meet the Qos plan. They can independently carry services and are mutually backup relationships.
  • the access devices are connected to the A and B planes through the interfaces that are backed up by each other (IP1 and IP2, IP5, and IP6).
  • IP1 and IP2 are in backup relationship.
  • IP5 and IP6 are also mutually backup.
  • a network resource configuration method of the present invention is implemented based on the foregoing IP network networking structure, The method is applicable to all IP network networking applications.
  • This embodiment is applied to the NGN network as an example.
  • the method is as follows:
  • the access device is an NGN TG (Trunk Gateway). As shown in FIG. step:
  • Step 10 Configure the attributes of the A/B plane of the bearer network and set the backup relationship to each other.
  • FIG. 3 is a schematic diagram of the networking of the NGN network according to the present invention.
  • Each plane has a strict QoS plan to meet the requirements of the NGN service, and the attributes of the A/B plane are configured, so that each plane independently carries services and is a backup relationship.
  • the IP address is allocated on the local end, the local IP address is selected according to the plane to which the peer IP address belongs, so that the packets of the two parties are forwarded through the same plane.
  • the process of forwarding service packets try to forward the packets in the local plane. , can also be forwarded between two planes;
  • the A/B plane can be distinguished by the network segment.
  • the address of the network segment greater than 10.0.0.0 is the A-plane address
  • the address of the network segment smaller than 10.0.0.0 is the B-plane address. It can also be a complex combination of conditions, such as at 10.0.
  • the range of .0.0 to 11.0.0.0 and the range of less than 2.0.0.0 are defined as the A plane, and the others are the B plane;
  • Step 11 Configure the interface IP address and set the backup relationship.
  • Configure the IP address of the interface to allocate services Configure different IP addresses on the two interfaces to belong to different planes to achieve service load balancing. Specify the bandwidth that can be used to allocate services on each IP address.
  • the allocation can be as follows - configure the address of interface 1 IP1: 10.1.1.1 belongs to the A plane to allocate the service bandwidth 500M; configure the address of interface 2 IP2: 9.1.1.1 belongs to the B plane to allocate the service bandwidth 500M; Of course, in actual cases, also You can assign 400M service bandwidth to interface 1 and 600M service bandwidth to interface 2. In the specific embodiment of the present invention, the detailed description will be given only by the same service bandwidth allocated between the two.
  • IP1 as the backup of IP2: primary interface IP2, backup interface IP1;
  • the access device is connected to the boundary of the A and B planes through the two interfaces that are mutually backup.
  • the A and B planes can receive and send service packets of any interface of the access device.
  • Step 12 The access device receives the call, allocates the IP resource, and forwards the service packet. After the configuration is completed, when the access device receives the call and requests to allocate the IP resource, if the IP address of the peer device is unknown, If the access device acts as the NGN TG (Trunk Gateway) to call the calling party, as shown in Figure 4, it alternates between 10.1.1.1 address and 9.1.1.1 address. Allocate business;
  • the local IP address is assigned according to the attribute of the plane where the IP address of the peer is assigned. If the service allocated on the selected IP address exceeds the configured bandwidth, then the backup relationship is selected. If the access device is the called party of the NGN TG, if the peer end is assigned the IP address of the A-plane 10 ⁇ 1.1, the local end preferentially allocates services on the A-plane IP address 10.1.1.2;
  • the calling TG allocates services on the IP address 10.1 ⁇ 1 according to the principle of round robin, and the called TG selects and allocates services on the IP address 10.1.1.2 in the same plane as the calling TG;
  • the service packet After the local IP address is allocated, the service packet is forwarded, and the packet is sent out from the interface where the assigned IP address is located.
  • the service packets of the primary and the called are forwarded in the same plane.
  • Step 13 When an interface fails, the routing information is changed to continue to forward the service packet.
  • an interface such as IP1 is faulty, the routing information needs to be changed, and the service packet with the source IP address is backed up.
  • the IP2 interface is sent out, and the IP2 interface is also received from the IP2 interface.
  • the above-mentioned process can be resumed by simply modifying the route.
  • the processing is very simple, and the service interruption time caused by the fault does not exceed 50 ms. Similarly, the same processing can be performed on the peer routing device.
  • IP2 interface If the IP2 interface is faulty, the IP1 interface is normal and the same is handled.
  • the 10.1.1.1 interface is faulty, the data is sent from the 9.1.1.1 physical interface.
  • the IP address is 10 ⁇ 1.1, the service is not interrupted, and the 10.1.1.1 interface fault recovery time is less than 50ms.
  • the new service is allocated on the 9.1.1.1 address, so that the service can be maintained after the service on the 10.1.1.1 address is offline. After the interface fault is recovered, the communication mode under normal conditions is automatically restored.
  • the present invention implements interface load sharing and mutual active backup.
  • the two interfaces of the access device are respectively connected to the A/B dual plane of the IP bearer network, and when the IP address of the peer device is unknown, One The service is evenly distributed on the interface of the peer.
  • the IP address of the peer access device is known, the IP address of the same plane as the peer IP address is preferentially assigned according to the plane where the peer IP address resides.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Description

一种 IP网络资源配管方法及 IP网络 技术领域
本发明涉及网络通信技术领域,尤其涉及一种 IP网络资源配置方法和 IP 网络。
背景技术
传统的 IP (因特网协议) 网络中, 接入设备和 IP承载网的组网配合方法 为: 接入设备如 PC (个人电脑)机, 通过以太网或者其它接入技术接入到 IP 网络, 如果接入设备和 IP网的连接故障, 则业务中断, IP网络自身通过网络 冗余和动态路由协议保证可靠性。
在 NGN (下一代网络) 网络或 WCDMA (宽带码分多址) /CDMA (码分 多址接入)等网络中, 一般情况下, 接入设备和 IP承载网的组网方式如图 1所 示, 其中, 接入设备可以是 NGN领域或者移动 WCDMA/CDMA领域的媒体网 关、 软交换等依赖于 IP网络进行通讯的设备, 为继承和满足传统 PSTN (传统 电话网) 网络高可靠性的要求, 接入设备一般出主备接口, 通过主备链路接 入到 IP网络中的边缘路由器上, 链路可以是以太网或者 POS (PPP承载在分组 上)等。
因 NGN业务对 IP承载网有较高的 Qos (服务质量)要求, 如: 丢包率 1%、 网络抖动 20ms、 时延 100ms, 以及较高的可靠性要求, 如: 单点故障 50ms恢 复业务,传统的 IP网络已不能满足要求, 所以应建立专门的有 Qos保障和高可 靠性的 IP网络承载 NGN业务。
为解决 Qos和可靠性问题, 现有技术采用 A/B平面的组网方法, 如图 2所 示, 接入设备如媒体网关, 出主备接口, 分别连接到 IP承载网的两个路由器 或者 L3 (三层以太网交换机) 上。
两个接入路由器或者 L3分别属于不同的平面, A、 B平面可以是两个互为 备份的逻辑通路, 如 MPLS VPN (多协议标签交换虚拟专用网) , 或者是经 过严格规划的互为备份的两个物理网络。
正常情况下, 接入设备只在主接口的 IP地址上分配业务, 业务报文从接 入设备发给路由器后, 路由器选择一个平面把报文发送给对端接入设备, 每 个边缘路由器所选择的 A/B承载平面都应当相同, 否则如一端选择 A平面, 另 一端选择 B平面, 就需要 A/B平面相互转发报文。
当接入设备的主接口故障时, 发生主备倒换, 从备接口把报文发给路由 器, 同时从备接口接收业务报文;
当 A/B平面内的路由器或者链路故障时,通过路由收敛和快速倒换恢复业 务;
然而, 上述的组网方式存在以下问题:
1、接入设备只在主接口分配业务, 备接口不分配业务, 所以备链路和备 链路对应的路由器等设备一直空闲, 资源利用不充分;
2、 因数据通讯设备不支持基于会话的负荷分担, A/B平面也只能是主备 关系, 即一个平面承载 100%业务, 一个平面空闲不承载业务, 资源利用不充 分;
3、 由于资源的浪费直接导致 Qos不能得到有效保证;
4、 为减少 A、 B平面之间的相互报文转发, 需要做大量复杂的配置, 实 现起来困难。
发明内容
鉴于上述现有技术所存在的问题, 本发明的目的在于提供一种实现简单 的网络资源配置方法及 IP网络,通过负荷分担、互为备份的双平面组网技术, 解决现有的主备方式双平面组网造成的网络资源利用不充分, 网络规划配置 复杂等问题, 提升网络 Qos。
为了实现上述目的, 本发明提供了一种 IP网络资源配置方法, 包括- 平面配置步骤,将承载网络相互连接的 A平面和 B平面配置为互为备份关 系, 且可以独立承载业务的平面;
接口配置步骤, 为接入设备的接口配置为互为备份关系, 并配置分属于 承载网络 A平面和 B平面的 IP地址, 实现与所述 A平面和 B平面的连接;
业务分配步骤, 在不能获知对端接入设备 IP地址时, 在接入设备的两个 接口的 IP地址上轮选分配业务。
上述的 IP网络资源配置方法, 其中, 所述业务分配步骤中, 在不能获知 对端接入设备 IP地址时, 在接入设备的两个接口的 IP地址上均匀轮选分配业 务。
上述的 IP网络资源配置方法, 其中, 所述业务分配步骤中, 在获知对端 接入设备 IP地址时,优先分配业务给与对端接入设备 IP地址属于同一平面的 IP 地址。
上述的 IP网络资源配置方法, 其中, 所述业务分配步骤中, 在获知对端 接入设备 IP地址,且与对端接入设备 IP地址属于同一平面的 IP地址上分配的业 务超过配置的带宽时, 选择与所选接口具有备份关系的接口的 IP地址进行分 配。
上述的 IP网络资源配置方法, 其中, 其特征在于, 还包括:
接口故障处理步骤, 接入设备的一个接口发生故障时, 改变路由信息, 将业务倒换到与故障接口互为备份关系的接口上进行发送及接收。
上述的 IP网络资源配置方法, 其中, 所述 A平面和 B平面通过网段区分。 上述的 IP网络资源配置方法, 其中, 通过显式的配置将接入设备的接口 配置为互为备份关系。
上述的 IP网络资源配置方法, 其中, 通过路由优先级将接入设备的接口 配置为互为备份关系。
为了更好的实现上述目的, 本发明还提供了一种 IP网络, 包括接入设备、 包括 A平面和 B平面的 IP承载网络, 其中:
所述 A平面和 B平面相互连接, 为可独立承载业务的平面, 且互为备份关 系;
所述接入设备包括互为备份关系的接口, 且通过分属于承载网络 A平面 和 B平面的 IP地址分别与所述 A平面和 B平面连接;
在不能获知对端接入设备 IP地址时, 所述接入设备的接口的两个 IP地址 用于共同承载业务。
上述的 IP网络, 其中, 在不能获知对端接入设备 IP地址时, 所述接入设 备的接口的两个 IP地址用于均匀承载业务。
上述的 IP网络, 其中, 所述互为备份的接口中一个发生故障时, 与故障 接口互为备份关系的接口用于接收 /发送故障接口的业务。
上述的 IP网络, 其中, 在能获知对端接入设备 IP地址时, 与对端接入 设备 IP地址属于同一平面的 IP地址比另一 IP地址具有高的分配业务的优先 级。
由上述本发明提供的技术方案可以看出, 本发明实现了接口负荷分担、 互为主备,接入设备两个接口同时分别连接到 IP承载网的 A/B双平面,在不 知道对端设备 IP地址时, 在两个平面的接口上均匀分配业务; 在已知对端接 入设备的 IP地址时, 按对端 IP地址所在的平面, 优先分配和对端 IP地址在 同一平面的 IP地址。解决了现有的主备方式双平面组网造成的网络资源利用 不充分, 网络规划配置复杂等问题, 有效地提升了网络 Qos、 实现简单。 附图说明
图 1为现有技术 NGN网络组网示意图;
图 2为现有技术 NGN网络采用 A/B平面的组网示意图;
图 3为本发明组网示意图;
图 4为本发明所述方法工作状态图 1;
图 5为本发明所述方法工作状态图 2;
图 6为本发明所述方法流程图。
具体实施方式
本发明的核心思想是提供一种网络资源配置方法, 通过负荷分担、 互为 备份的双平面组网技术, 解决了现有的主备方式双平面组网造成的网络资源 利用不充分, 网络规划配置复杂等问题, 有利于提升网络 Qos。
本发明的 IP网络组网结构如图 3所示, 包括: 接入设备、 第一 IP承载子系 统和第二 IP承载子系统, 其中:
第一 IP承载子系统包括 A平面以及通过 A平面连接的一对 Router/L3; 第二 IP承载子系统包括 B平面以及通过 B平面连接的一对 Router/L3; 第一 IP承载子系统和第二 IP承载子系统通过 A平面和 B平面实现连接;
A平面和 B平面相互连接, 都满足 Qos规划, 都能独立承载业务, 且互为 备份关系;
接入设备通过互为备份的接口 (IP1和 IP2、 IP5和 IP6)分别连接到 A平面 和 B平面, IP1和 IP2互为备份关系, 当然 IP5和 IP6也是互为备份关系的。
本发明的一种网络资源配置方法基于上述的 IP网络组网结构来实现, 该 方法适用于所有 IP网络组网应用, 本实施例以应用于 NGN网络为例对该方法 进行说明, 设定接入设备为 NGN TG (中继网关) , 如图 6所示该方法具体包 括如下步骤:
步骤 10: 配置承载网络 A/B平面的属性, 设置互为备份关系;
图 3为本发明 NGN网络的组网示意图, 每个平面都具有严格的 Qos规划, 以满足 NGN业务的要求, 配置 A/B平面的属性, 使每个平面独立承载业务, 互为备份关系, 以便在本端分配 IP资源时, 根据对端 IP地址所属的平面选择 本端 IP地址, 使通信双方的报文转发只经过同一个平面; 在业务报文转发过 程中, 尽量在本平面内部转发, 也可以在两个平面间转发;
A/B平面可以通过网段区别, 如设定大于 10.0.0.0网段的地址是 A平面地 址, 小于 10.0.0.0网段的地址是 B平面地址; 也可以是复杂的条件组合, 如在 10.0.0.0到 11.0.0.0范围和小于 2.0.0.0范围规定为 A平面, 其它为 B平面;
步骤 11 : 配置接口 IP地址及设置备份关系;
配置接口的 IP地址用于分配业务, 两个接口上配置不同的 IP地址, 使其 分别属于不同的平面, 以达到业务负荷分担的目的, 并在每个 IP地址上指定 可用于分配业务的带宽, 分配情况可如下- 配置接口 1的地址 IP1 : 10.1.1.1 属于 A平面 分配业务带宽 500M; 配置接口 2的地址 IP2: 9.1.1.1 属于 B平面 分配业务带宽 500M; 当然, 在实际情况下, 也可以为接口 1分配 400M的业务带宽, 为接口 2分 配 600M的业务带宽。在本发明的具体实施例中, 仅以二者之间分配的业务带 宽相同进行详细说明。
可以通过显式的配置指定哪两个接口互为备份, 也可以通过路由的优先 级设置备份关系。 互为备份的两个接口, 任意一个故障, 故障接口的业务都 从其备份接口接收和发送; 两个互为备份的接口所分配业务的带宽不能大于 一个物理接口的带宽, 否则发生故障后, 部分业务将被中断, 举例如下: 配置 IP2作为 IP1的备份: 主接口 IP1 , 备份接口 IP2;
配置 IP1作为 IP2的备份: 主接口 IP2 , 备份接口 IP1 ;
接入设备通过两个互为备份的接口, 分别接入到 A、 B平面的边界点, A、 B两平面都可以接收和发送接入设备的任意接口的业务报文。 步骤 12: 接入设备接收呼叫, 分配 IP资源, 转发业务报文; 上述配置完成后, 当接入设备接收到呼叫, 要求分配 IP资源时, 在不知 道对端设备 IP地址的情况下, 在两个互为备份的接口上均匀轮选分配业务, 若接入设备作为 NGN TG (中继网关)呼叫主叫方时,如图 4所示,在 10.1.1.1 地址和 9.1.1.1地址上轮流分配业务;
在已知对端设备 IP地址时, 按对端已分配 IP地址所在平面的属性分配 本端 IP地址, 若所选择的 IP地址上分配的业务已超过配置的带宽, 则再选 择与其具有备份关系的 IP地址分配业务;如接入设备是 NGN TG的被叫方时, 若对端分配了 A平面的 IP地址 10丄 1.1,本端就优先在 A平面 IP地址 10.1.1.2 上分配业务;
如图 4中主叫 TG根据轮选原则在 IP地址 10.1丄 1上分配业务,被叫 TG 选择和主叫 TG在同一平面内的 IP地址 10.1.1.2上分配业务;
10.1.1.1和 10.L1.2地址之间的通信只经过 A平面;
9.1.1.1和 9丄 1.2地址之间的通信只经过 B平面;
本端 IP地址分配完成后, 转发业务报文, 按路由从分配的 IP地址所在 接口把报文发送出去, 主被叫的业务报文在同一个平面内转发。
步骤 13: 当一个接口出现故障时, 改变路由信息继续转发业务报文; 当一个接口如 IP1所在接口出现故障时, 只需要改变路由信息, 把源地 址为 IP1的业务报文从与其具有备份关系的 IP2所在接口发送出去, 同样也 从 IP2接口接收目的地址是 IP1的报文。
上述因只需修改路由就可恢复业务, 处理十分简单, 故障后造成的业务 中断时间不超过 50ms; 同样, 在对端路由设备上可做相同的处理。
若 IP2接口故障, IP1接口正常, 同样处理。
如图 5,若 10.1.1.1接口故障,贝 [J从 9.1.1.1物理接口收发 IP地址是 10丄 1.1 的报文, 业务不中断, 10.1.1.1接口故障恢复时间小于 50ms;
新业务在 9.1.1.1地址上分配, 以便 10.1.1.1地址上的业务下线后能对该 接口进行维护。 接口故障恢复后, 自动恢复到正常状况下的通讯方式。
综上所述, 本发明实现了接口负荷分担、互为主备, 接入设备两个接口 同时分别连接到 IP承载网的 A/B双平面, 在不知道对端设备 IP地址时, 在两个 平面的接口上均匀分配业务; 在已知对端接入设备的 IP地址时, 按对端 IP地 址所在的平面, 优先分配和对端 IP地址在同一平面的 IP地址。
以上所述, 仅为本发明较佳的具体实施方式, 但本发明的保护范围并不 局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应该以权利要求的保护范围为准。

Claims

权利 要 求 书
1、 一种 IP网络资源配置方法, 其特征在于, 包括:
平面配置步骤,将承载网络相互连接的 A平面和 B平面配置为互为备份关 系且可以独立承载业务的平面;
接口配置步骤, 为接入设备的接口配置为互为备份关系, 并配置分属于 承载网络 A平面和 B平面的 IP地址, 实现与所述 A平面和 B平面的连接;
业务分配步骤, 在不能获知对端接入设备 IP地址时, 在接入设备的两个 接口的 IP地址上轮选分配业务。
2、 根据权利要求 1所述的 IP网络资源配置方法, 其特征在于, 所述业务 分配步骤中, 在不能获知对端接入设备 IP地址时, 在接入设备的两个接口的 IP地址上均匀轮选分配业务。
3、 根据权利要求 2所述的 IP网络资源配置方法, 其特征在于, 所述业务 分配步骤中, 在获知对端接入设备 IP地址时, 优先分配业务给与对端接入设 备 IP地址属于同一平面的 IP地址。
4、 根据权利要求 3所述的 IP网络资源配置方法, 其特征在于, 所述业务 分配步骤中, 在获知对端接入设备 IP地址, 且与对端接入设备 IP地址属于同 一平面的 IP地址上分配的业务超过配置的带宽时, 选择与所选接口具有备份 关系的接口的 IP地址进行分配。
5、 根据权利要求 1、 2、 3或 4所述的 IP网络资源配置方法, 其特征在于, 还包括:
接口故障处理步骤, 接入设备的一个接口发生故障时, 改变路由信息, 将业务倒换到与故障接口互为备份关系的接口上进行发送及接收。
6、 根据权利要求 1、 2、 3或 4所述的 IP网络资源配置方法, 其特征在于, 所述 A平面和 B平面通过网段区分。
7、 根据权利要求 1、 2、 3或 4所述的 IP网络资源配置方法, 其特征在于, 通过显式的配置将接入设备的接口配置为互为备份关系。
8、 根据权利要求 1、 2、 3或 4所述的 IP网络资源配置方法, 其特征在于, 通过路由优先级将接入设备的接口配置为互为备份关系。
9、 一种 IP网络, 包括接入设备、 包括 A平面和 B平面的 IP承载网络, 其 特征在于:
所述 A平面和 B平面相互连接, 为可独立承载业务的平面, 且互为备份关 系;
所述接入设备包括互为备份关系的接口, 且通过分属于承载网络 A平面 和 B平面的 IP地址分别与所述 A平面和 B平面连接;
在不能获知对端接入设备 IP地址时, 所述接入设备的接口的两个 IP地址 用于共同承载业务。
10、根据权利要求 8所述的 IP网络, 其特征在于, 在不能获知对端接入设 备 IP地址时, 所述接入设备的接口的两个 IP地址用于均匀承载业务。
11、根据权利要求 8所述的 IP网络, 其特征在于, 所述互为备份的接口中 一个发生故障时, 与故障接口互为备份关系的接口用于接收 /发送故障接口的 业务。
12、根据权利要求 8所述的 IP网络, 其特征在于, 在能获知对端接入设备 IP地址时,与对端接入设备 IP地址属于同一平面的 IP地址比另一 IP地址具有高 的分配业务的优先级。
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