Method and system for non disruptively assigning link bandwidth to a user in a high speed digital network
    2.
    发明授权
    Method and system for non disruptively assigning link bandwidth to a user in a high speed digital network 失效
    用于在高速数字网络中不间断地向用户分配链路带宽的方法和系统

    公开(公告)号:US06262974B1

    公开(公告)日:2001-07-17

    申请号:US09213506

    申请日:1998-12-17

    IPC分类号: H04L1226

    摘要: A method based on predefined connection priorities for assigning link bandwidth to a requesting user in a high speed digital network interconnecting network users through a path including network nodes connected through high speed links. According to this method, a predefined reservable link bandwidth is split into so-called nominal bandwidth portions and common bandwidth portions, both assignable to the same connections on a priority basis. Each of the common bandwidth priorities is individually related to a nominal bandwidth priority through a predefined relationship, making the common bandwidth priorities always lower than any nominal priority. In this way the requested link connection bandwidth, whatever be its nominal priority, is made preemptable primarily on all common bandwidth, thus avoiding the disruption of any network connection which is already established.

    摘要翻译: 一种基于预定义的连接优先级的方法,用于将高速数字网络中的请求用户分配链路带宽,通过包括通过高速链路连接的网络节点的路径互连网络用户。根据该方法,预定义的可预留链路带宽被分为 称为标称带宽部分和公共带宽部分,可以优先分配给相同的连接。 每个公共带宽优先级通过预定义的关系单独地与标称带宽优先级相关,使得共同带宽优先级始终低于任何标称优先级。 以这种方式,无论作为其标称优先级,所请求的链路连接带宽主要在所有公共带宽上可抢占,从而避免已经建立的任何网络连接的中断。

    Method and system for optimizing the connection set up time in high
speed communication networks for recovering from network failure
    3.
    发明授权
    Method and system for optimizing the connection set up time in high speed communication networks for recovering from network failure 失效
    在高速通信网络中优化连接建立时间以从网络故障中恢复的方法和系统

    公开(公告)号:US6038212A

    公开(公告)日:2000-03-14

    申请号:US946243

    申请日:1997-10-07

    摘要: This method enables optimizing the time required for reestablishing connections between end users attached to a data communication network, which connections were disrupted due to a network failure. The network includes access nodes and transit nodes interconnected with network links/trunks (with no specific distinction being herein required between both designations of a communication line). The end users are attached to the network through access nodes and each said access node permanently stores an image of the current network trunk including the number N.sub.i of connections currently supported by said network trunk. Upon detection of a trunk failure, each access node supporting connections affected by said failure, is made aware of the total number (N.sub.i) of connections in each priority group affected by the failure, together with a network dependent parameter (TP) representing the elementary processing time required to reroute a single network connection. Then each access node may independently, start a first reconnection set-up procedure at a time Ri randomly selected between zero and (N.sub.i -n.sub.i) *TP, where n.sub.i is the number of connections supported by the access node in each priority group, and then space the required subsequent reconnections set-ups by a time equal to (T.sub.i -R.sub.i)/n.sub.i, with T.sub.i =N.sub.i *TP.

    摘要翻译: 该方法能够优化重新建立连接到数据通信网络的终端用户之间的连接所需的时间,哪些连接由于网络故障而中断。 网络包括与网络链路/中继线互连的接入节点和传输节点(在通信线路的两个指定之间,这里不需要具体区分)。 最终用户通过接入节点连接到网络,并且每个所述接入节点永久地存储包括当前由所述网络中继线支持的连接的数目Ni的当前网络中继的图像。 在检测到中继线故障时,支持受所述故障影响的连接的每个接入节点被识别出由故障影响的每个优先级组中的连接的总数(Ni),以及表示基站的网络相关参数(TP) 重新路由单个网络连接所需的处理时间。 然后,每个接入节点可以独立地在零和(Ni-ni)* TP之间随机选择的时间Ri开始第一重新连接建立过程,其中,ni是每个优先级组中的接入节点支持的连接数,以及 然后将所需的后续重新连接设置空间等于(Ti-Ri)/ ni,Ti = Ni * TP。

    Method and system for non-disruptively assigning link bandwidth to a
user in a high speed digital network
    4.
    发明授权
    Method and system for non-disruptively assigning link bandwidth to a user in a high speed digital network 失效
    用于在高速数字网络中不间断地将链路带宽分配给用户的方法和系统

    公开(公告)号:US5881050A

    公开(公告)日:1999-03-09

    申请号:US785944

    申请日:1997-01-22

    摘要: A method based on predefined connection priorities for assigning link bandwidth to a requesting user in a high speed digital network interconnecting network users through a path including network nodes connected through high speed links. According to this method, a predefined reservable link bandwidth is split into so-called nominal bandwidth portions and common bandwidth portions, both assignable to the same connections on a priority basis. Each of the common bandwidth priorities is individually related to a nominal bandwidth priority through a predefined relationship, making the common bandwidth priorities always lower than any nominal priority. In this way the requested link connection bandwidth, whatever be its nominal priority, is made preemptable primarily on all common bandwidth, thus avoiding the disruption of any network connection which is already established.

    摘要翻译: 一种基于预定义的连接优先级的方法,用于将高速数字网络中的请求用户分配链路带宽,通过包括通过高速链路连接的网络节点的路径互连网络用户。 根据该方法,将预定义的可预留链路带宽分为所谓的标称带宽部分和公共带宽部分,两者都可优先分配给相同的连接。 每个公共带宽优先级通过预定义的关系单独地与标称带宽优先级相关,使得共同带宽优先级始终低于任何标称优先级。 以这种方式,无论作为其标称优先级,所请求的链路连接带宽主要在所有公共带宽上可抢占,从而避免已经建立的任何网络连接的中断。