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METHOD FOR CHECKING LABEL SWITCHED PATH CONNECTION IN ASYNCHRONOUS TRANSFER MODE MULTI PROTOCOL LABEL SWITCHING NETWORK
METHOD FOR CHECKING LABEL SWITCHED PATH CONNECTION IN ASYNCHRONOUS TRANSFER MODE MULTI PROTOCOL LABEL SWITCHING NETWORK
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机译:异步传输方式多协议标签交换网络中标签交换路径连接的检测方法
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摘要
PURPOSE: A method for checking LSP(Label Switched Path) connection of an ATM(Asynchronous Transfer Mode) is provided to perform a path inspection by using a management message for the path inspection. CONSTITUTION: A method for checking LSP(Label Switched Path) connection of an ATM(Asynchronous Transfer Mode) comprises the steps of: suspending the answering message reception of a path inspection, after delivering to a MPLS(Multi Protocol Label Switching) layer by generating the path inspection message in an LDP(Label Distribution Protocol) layer of an ATM(Asynchronous Transfer Mode)-LSR(Label Switching Router), when completing the ATM set connection; transmitting to an L5(ATM Adaptation Layer5) by attaching a MPLS header to the path inspection message; transmitting to the exit side of the ATM-LSR through the ATM-LSP for performing the path inspection, by attaching an L5 trailer to the path inspection message from the a L5 layer, and making to a cell type of the ATM; delivering the path inspection message to the MPLS layer, after removing the a L5 trailer from the ATM cell delivered through the ATM layer of the exit side of the ATM-LSR; transmitting the path inspection message to the LDP layer, after removing the MPLS header from the MPLS layer; generating the path inspection answering message about the path inspection message from the LDP layer, and transmitting to the special side of the ATM-LSR through a path for transmitting/receiving the LDP message.
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