Switching system comprising distributed elements allowing attachment to
line adapters, and having multicasting capabilities
    12.
    发明授权
    Switching system comprising distributed elements allowing attachment to line adapters, and having multicasting capabilities 失效
    交换系统包括允许附加到线路适配器并具有多播功能的分布式元件

    公开(公告)号:US6125114A

    公开(公告)日:2000-09-26

    申请号:US992015

    申请日:1997-12-17

    摘要: A switching system comprising a switching structure for routing cells from a set of M input ports towards a set of M output ports. The system includes a set of distributed individual Switch Core Access layer elements which communicate with one input and output port of the switching structure by means of a set of serial communication links. Each SCAL element provides attachment to at least one Protocol Adapter and comprises a set of circuits. The receive part of each circuit includes means for introducing at least one extra byte to every cell. The extra byte is reserved for carrying a routing header for controlling the switching structure in a first step, and then for use by the PINT circuit when the cell will be received by the transmit part in a second step. The transmit part of each PINT circuit comprises a control module that receives all the cells generated at the corresponding output port and controls whether to discard the cell based on the value of the extra byte.

    摘要翻译: 一种交换系统,包括用于将一组M个输入端口的单元路由到一组M个输出端口的交换结构。 该系统包括一组分布式的交换机核心接入层元件,它们通过一组串行通信链路与交换结构的一个输入和输出端口通信。 每个SCAL元件提供至少一个协议适配器的附件,并且包括一组电路。 每个电路的接收部分包括用于向每个单元引入至少一个额外字节的装置。 额外的字节被保留用于携带用于在第一步骤中控制交换结构的路由报头,然后由PINT电路用于第二步中由发送部分接收信元。 每个PINT电路的发送部分包括控制模块,其接收在相应输出端口处生成的所有单元,并根据额外字节的值来控制是否丢弃该单元。

    Method and system for optimizing connection set-up operations in a high speed digital network
    13.
    发明授权
    Method and system for optimizing connection set-up operations in a high speed digital network 有权
    用于优化高速数字网络中连接建立操作的方法和系统

    公开(公告)号:US06246669B1

    公开(公告)日:2001-06-12

    申请号:US09193301

    申请日:1998-11-17

    IPC分类号: H04L1246

    CPC分类号: H04L45/02

    摘要: In a high speed digital network including access nodes and network nodes each having topology data bases, a method for optimizing the connection set-up operations required for connecting a calling end-user attached to a local access node to a destination user attached to a remote access node, via a conventional connection set-up operation. An Access Node Connection Table (ANCT) in each access node stores a list of every remote access node for which the local access node has at least one user connection. A field in the locate reply message is defined for the destination remote Access Node Topology Database (ANTDB) and remote ANTDB information is inserted prior to sending the reply message. Locate reply message reception is monitored by the local access node, and upon reception an entry is created for the received remote ANTDB information in the local access node unless the remote access node was already identified in the local access node. An optimal path is then selected and connection set up. The ANCT is then updated accordingly.

    摘要翻译: 在包括具有拓扑数据库的接入节点和网络节点的高速数字网络中,一种用于优化连接到本地接入节点的主叫终端用户所连接的连接建立操作到连接到远端的目的用户的方法 接入节点,通过传统的连接建立操作。 每个访问节点中的接入节点连接表(ANCT)存储本地接入节点具有至少一个用户连接的每个远程接入节点的列表。 定位回复消息中的一个字段是为目标远程访问节点拓扑数据库(ANTDB)定义的,并且在发送回复消息之前插入远程ANTDB信息。 定位应答消息接收由本地接入节点监视,一旦接收到本地接入节点接收到的远端ANTDB信息,就创建一个入口,除非本地接入节点已经识别出远端接入节点。 然后选择最佳路径并建立连接。 然后相应地更新ANCT。