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1. 发明授权

US06480492B1 Establishing internal control paths in ATM node 有权
标题翻译：建立ATM节点内部控制路径
公开(公告)号：US06480492B1
公开(公告)日：2002-11-12
申请号：US09249785
申请日：1999-02-16
申请人： Arne Lundbäck , Göran Hansson , Torgny Lindberg
发明人： Arne Lundbäck , Göran Hansson , Torgny Lindberg
IPC分类号： H04L1256
CPC分类号： H04L12/5601 , H04L49/1553 , H04L49/255 , H04L49/3081
摘要： To form internal control paths in an ATM node (20, 120), “half trails” (HF) are initially established and subsequently connected to form complete trails (FT). In an ATM node having plural node entities (30, 130) or device boards connected to a switch core (24, 124), for each node entity a main control path program (70) executed by a node main processor () initially forms both a listening half trail and a sending half trail extending from the node main processor and switch core. Separately and independently, i.e., without prior communication with the node main processor, an entity control path program (80) executed by an entity processor (50, 150) at each node entity establishes a listening half trail between itself and the switch core. For each node entity, the entity control path program establishes the same VPI/VCI as the listening half trail. The entity processor then receives on its independently established listening half trail (i.e., on the predetermined VPI/VCI) a handshaking request. The handshaking request (HR) includes information indicating what half trail (e.g., what other VPI/VCI) the node entity can use as a sending half trail for sending control cells to node main processor. The node entity then responds to the handshaking request with a response message (RM) sent over the sending half trail. Single stage and multi-stage ATM node embodiments are provided. The entity control path program (80) is preferably the same for each node entity.
摘要翻译：为了在ATM节点（20,120）中形成内部控制路径，最初建立“半径”（HF）并随后连接以形成完整路径（FT）。在具有连接到交换机核心（24,124）的多个节点实体（30,130）或设备板的ATM节点中，对于每个节点实体，由节点主处理器（）执行的主控制路径程序（70）最初形成一个收听半径和从节点主处理器和交换机核心延伸的发送半径。单独和独立地，即没有与节点主处理器的先前通信，由每个节点实体处的实体处理器（50,150）执行的实体控制路径程序（80）在其与交换机核心之间建立一个监听半径。对于每个节点实体，实体控制路径程序与监听半径建立相同的VPI / VCI。然后，实体处理器在其独立建立的收听半径（即，在预定的VPI / VCI）上接收握手请求。握手请求（HR）包括指示节点实体可以使用哪个半路径（例如，什么其他VPI / VCI）作为用于将控制小区发送到节点主处理器的发送半路径的信息。然后，节点实体通过在发送半径上发送的响应消息（RM）来响应握手请求。提供单级和多级ATM节点实施例。实体控制路径程序（80）对于每个节点实体优选地是相同的。

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