Fail processing system and method of transmission equipment
A technology for transmission equipment and faults, which is applied in the field of optical communications, can solve problems such as long protection convergence time, routers being unable to perceive link faults, and inability to realize fast protection, etc., so as to achieve the effect of fast protection convergence
Active Publication Date: 2008-02-06
ZTE CORP
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As shown in Figure 1, the connected Ethernet signal is the branch signal of the node, and the aggregated STM-16 signal is the group signal. Because of frame format conversion, at the GbE access point, the Ethernet signal is Termination, GE-N and node 11 tributary port 101, node 11 and node 12, node 12 tributary port 601 and GE-N' establish connections with each other, and there is no connection between GE-N and GE-N' Direct connection relationship, link connection status information, such as link failure signal (Loss of Signal, hereinafter referred to as LOS), link recovery LOS disappears, and connection alarm link failure (LINK FAIL), link recovery (LINK OK), cannot pass physical The layer is directly transmitted to the peer router, and the router can only achieve protection convergence through the upper layer protocol, resulting in too long protection convergence time (second level), unable to achieve fast protection
On the other hand, when the transmission network fails, such as when the group line is interrupted, the routers on both sides cannot perceive the link failure, and protection convergence cannot occur.
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[0039] The system of a preferred embodiment of the present invention is shown in Figure 1, the branch channel 100 of the node 11 is connected with the client equipment 110, and the branch port 101 is connected with the branch channel 100, and the branch channel 100, the client device 110 and the branch There can be one or more ports 101, the fault detection module 102 is connected with the branch port 101, the fault execution module 103, the fault input and output interface 104 and the group port 107, and is used for detecting faults, and the fault execution module 103 is used for receiving fault detection The signals received by the module 102 and the fault input and output interface 104 include fault information, and different operations are adopted according to specific fault codes to control the switching of the tributary port 101 or start negotiation. The fault input and output interface 104 connects the fault detection module 102 and the fault execution module 103, receiv...
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The present invention relates to a fault disposing system and method in transmission device. The system of the invention at least comprises: a branching channel for connecting client device; a branching interface, which comprises an internal branching interface and an external branching interface; a fault detecting module; a fault execution module connected with the fault detecting module and the branching interface; a fault transmission channel; a business aggregating or disaggregating unit; an aggregate interface; an aggregate channel. The method of the invention comprises a fault generating handing method and a fault restoring handing method. By adopting the system and method of the invention, not only the information of link connection state of Gigabit Ethernet access signal can be transmitted quickly to the routers at two ends, but also the information of connection state of optical transmission network can be transmitted to the access router, thus realizing rapid protection and compression of business data.
Description
technical field [0001] The invention relates to the field of optical communication, in particular to a fault processing system and method in transmission equipment. Background technique [0002] In order to achieve fast protection of data services in data networks, routers often use the physical layer connection status signal as the trigger condition (millisecond level) for protection convergence. However, in the current transmission network, multi-channel Gigabit Ethernet GbE (Gigabit Ethernet, hereinafter referred to as GbE) signals are aggregated into one high-speed signal through an aggregation node, such as STM-16 or STM-64, or OTU1 or OTU2 signals. As shown in Figure 1, the connected Ethernet signal is the branch signal of the node, and the aggregated STM-16 signal is the group signal. Because of frame format conversion, at the GbE access point, the Ethernet signal is Termination, GE-N and node 11 tributary port 101, node 11 and node 12, node 12 tributary port 601 and...
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IPC IPC(8): H04B10/12H04B10/20H04B10/032H04B10/07
Inventor 夏亮
Owner ZTE CORP