Patent application number | Description | Published |
20090268610 | ETHERNET RING SYSTEM, TRANSIT NODE OF ETHERNET RING SYSTEM AND INITIALIZATION METHOD THEREOF - The present invention provides an Ethernet ring system, transit node of Ethernet ring system, and initialization method thereof, wherein the method includes the following steps: step 1, generating a transit node of Ethernet ring protection domain by means of ring nodes; step 2, detecting the link state of two ring ports by means of the transit node: if neither of the two ring ports is detected as in-fault, then recording ring the link state as initialization state, blocking at least one of the ring ports, setting the at least one blocked port in prerelease state, and sending a ring state query packet to a master node, by means of the transit node; step 3, when the ring state query packet is received, sending a ring state packet recorded by the master node to the ring port that receives the ring state query packet, by means of the master node; and step 4, checking whether the ring state packet sent by the master node have been received by the transit node of which the ring state is the initialization state; if so, unblocking the blocked port in the prerelease state, to realize initialization of the transit node. | 10-29-2009 |
20100188968 | METHOD FOR PROCESSING ETHER RIG NET MESSAGE AND AN ETHER RIG NET PROTECTION SYSTEM USING THE METHOD - A method for processing Ethernet ring messages and a corresponding Ethernet ring protection system are provided. The method comprises distinguishing a message to be processed by processors of transit nodes from that not to be processed by the processors of the transit nodes, and setting a distinguishing identifier when constituting a message; after receiving the message, the transit node forwarding the message not to be processed by the processor thereof to other nodes, or sending the message to be processed by the processor of the transit node to other nodes and meanwhile reporting the message to its processor depending on the distinguishing identifier; the system comprises a master node and transit nodes which generates messages with the distinguishing identifier and performs different process for these messages according to the distinguishing identifier. | 07-29-2010 |
20100260040 | ETHERNET RING SYSTEM AND A MASTER NODE AND AN INITIALIZATION METHOD THEREOF - The present invention provides an Ethernet ring system and the master node and the initialization method thereof, comprising the following steps: Step | 10-14-2010 |
20110122762 | METHOD FOR UPDATING AN ADDRESS TABLE IN AN ETHERNET RING NETWORK NODE - The present invention provides a method for updating an address table in an Ethernet ring network node and an Ethernet ring network node. When the Ethernet ring network node implements a port state switching operation and a port on the ring is switched from an unblocked state to a blocked state, the Ethernet ring network node updates its forwarding database. The method and the Ethernet ring network node of the present invention can accelerate update of the FDB in the node when a link fails or is recovered, thereby improving the convergence speed for the switching when the ring network fails. | 05-26-2011 |
20110158241 | Method and device for transmitting control message based on multi-ring ethernet - A method and device for transmitting a control message based on a multi-ring Ethernet are provided, wherein the method comprises the following steps: control virtual local area networks of a main ring and a sub-ring are configured (S | 06-30-2011 |
20120130959 | METHOD FOR CONTROLLING TIMES OF REFRESHING ETHERNET FORWARDING DATABASE - The present invention discloses a method for controlling the times of refreshing an Ethernet Forwarding Database, and the method includes: pre-configuring the time of an address refresh pause timer, receiving a first request for refreshing the Ethernet Forwarding Database; refreshing the Ethernet Forwarding Database and starting the address refresh pause timer; and receiving subsequent requests for refreshing the Ethernet Forwarding Database successively, detecting, each time when receiving the request for refreshing the Ethernet Forwarding Database, whether the address refresh pause timer expires, if yes, then proceeding to step | 05-24-2012 |
20120147735 | Method and Apparatus for a Ring Network Node to Acquire Protocol Messages - The present invention provides a method and an apparatus for acquiring protocol messages by a ring-network node, including: using dual fields to identify different protocol messages; if a node supporting G.8032v1 receives a Force Switch (FS) or Manual Switch (MS) protocol message, determining that message is a Signal Fail (SF) protocol message according to an identifier; a node supporting G.8032v2 determining that the received protocol message is an SF or MS or FS protocol message according to the identifier. The method of the present invention enables the nodes in a ring network to accurately control the state of their own ports, thereby avoiding the case that multiple blocking points appear in the ring network and improving the network performance. | 06-14-2012 |
20120155246 | Method and System for Blocking Protocol Messages at a Sub-Ring Control Channel without Virtual Channel - The present invention provides a method for blocking a protocol message at a Sub-ring control channel without a virtual channel, for avoiding the problem that the Sub-ring is in a continuous refresh state all the time caused by the existing solution of the Sub-ring control channel without the virtual channel, and the method includes: blocking forwarding of relevant messages when a forced switch is initiated or a failure is detected. | 06-21-2012 |
20120170487 | Method and system for preventing repeated updating of address table in ethernet ring network protection - The present disclosure discloses a method for preventing repeated updating of an address table in Ethernet ring network protection, including: an Ethernet ring network node sends an Ethernet ring network protection protocol frame and encapsulates its own node information into the Ethernet ring network protection protocol frame; an Ethernet ring network node receives the Ethernet ring network protection protocol frame and matches the node information encapsulated in the received Ethernet ring network protection protocol frame with its own node information; and when the matching is successful, the Ethernet ring network node does not update the address table. The present disclosure further discloses a system for preventing repeated updating of an address table in Ethernet ring network protection. In the system, a matching unit is used for matching the node information encapsulated in the received Ethernet ring network protection protocol frame with the node information of an Ethernet ring network node itself; and when the matching is successful, the Ethernet ring network node does not update the address table. Through the method and system of the disclosure, the problem of repeated updating of an address table in Ethernet ring network protection in the scenario of requesting local protection switching can be solved. | 07-05-2012 |
20120176935 | Method and System for Updating Blocked Port Information - Disclosed in the present invention is a method for updating blocked port information. The method includes: when a node to which a ring protection link belongs in an Ethernet ring network is in a pending state and after a wait to restore timer expires, updating by the node to which the ring protection link belongs in the Ethernet ring network refreshing record information of an adjacent port of the ring protection link as: information identifying a blocked port of the node to which the ring protection link belongs in the Ethernet ring network. | 07-12-2012 |
20120195233 | Topology Management Method of Ether Multi-Ring Network, and System Thereof - A method for managing a topology of a multi-ring Ethernet and a system thereof are disclosed, and the method includes: a node including a blocked port on the multi-ring Ethernet periodically sending a Topology Find Frame (TF) message along a transmission control channel through an own good port; a node receiving said TF message in the multi-ring Ethernet updating an own topology database according the NODE_LIST in said TF message, writing an own NODE_ID into the NODE_LIST of said TF message, and then forwarding said TF message along the transmission control channel. | 08-02-2012 |
20120263072 | ETHERNET TRAFFIC STATISTICS AND ANALYSIS METHOD AND SYSTEM - An Ethernet traffic statistics and analysis method comprises: according to two pieces of port traffic information reported continuously by each of two traffic analyzed nodes which are connected to any one link and a reporting time interval, a traffic analyzing node counting traffic of packets passing through the link, traffic of lost packets and corresponding rates, and constructing an analytic diagram according to the rate of the traffic of the lost packets counted every time. An Ethernet traffic statistics and analysis system is also provided. The solution performs statistics and analysis on the traffic on the link in the Ethernet, and reflects the current state of the link accurately and visually. When a fault occurs or a packet is lost on the link, the fault position can be quickly located, and the efficiency of management and maintenance can be increased. | 10-18-2012 |
20120263194 | METHOD AND APPARATUS FOR MEASURING SWITCHING TIME OF ETHERNET RING NETWORK - The present invention provides a method for measuring switching time of an Ethernet ring network, which comprises the following steps: synchronizing a local time of each node in the Ethernet ring network ( | 10-18-2012 |
20130028076 | Method and Device for Preventing Repeated Refreshing of Address Table of Ethernet Ring Network Node - A method and a device for preventing repeated refreshing of an address table of an Ethernet ring network node are provided. After a state of a port of the Ethernet ring network node is changed to a blocked state, it is determined that whether the Ethernet ring network node is an RPL neighbor node and whether the blockage is triggered by an RPL Blocked protocol frame. If so, the Ethernet ring network node stores refreshed record information corresponding to its two ports on the ring. The problem that an RPL neighbor node refreshes an address table repeatedly in the scenario of switchback of an Ethernet ring network can be effectively solved via the aforementioned method and device, thereby reducing flow broadcast during protection switching of the Ethernet ring network and improving the switching efficiency. | 01-31-2013 |
20130088976 | Method for Detecting Mismatch Fault and Maintenance Endpoint - The disclosure provides a method for detecting a mismatch fault and a Maintenance Endpoint (MEP). The method includes: determining whether there is a Traffic Engineering Service Instance (TESI) configured in a segment, setting a Present Traffic in Segment (PTS) variable, and setting a value of a PTS field included in a Connectivity Check Message (CCM) sent from a Maintenance Endpoint (MEP); receiving the CCM by the MEP, when the value of the PTS field included in the CCM does not coincide with that of the PTS variable, setting, by the MEP, a first mismatch fault indication variable mmCCMreceived to be set; when the first mismatch fault indication variable mmCCMreceived remains set after a first preset time period expires, detecting that a mismatch fault occurs. The method finds timely the mismatch problem occurred in the segment protection of Provider Backbone Bridging-Traffic Engineering (PBB-TE), thereby preventing data loss and service interruption caused by the occurrence of mismatch. | 04-11-2013 |
20130235718 | Path switch-back method and apparatus in transport network - The disclosure discloses a path switch-back method and apparatus in a transport network, belongs to the field of communications, and is used for avoiding the problem that signals can not be switched back to a working path from a protection path when the links in two directions of the working path between nodes in the transport network are restored from fault simultaneously. The path switch-back method in a transport network provided by the disclosure includes: a local node determines two failed links on the working path between an opposite node and itself are restored to normal simultaneously (S | 09-12-2013 |