Abstract: The present invention relates to a method for conducting redundancy checks in a chain network, wherein the two ends of the chain network are equipped with a first switch and a second switch respectively, and a port of the first or second switch used for communicating with an external network is set to be blocked, so that when an link failure happens to any switch of the chain network, the two switches close to the link failure port sends control packets to the first and second switches respectively to forward the port that is originally blocking, thus making the network to return to normal state quickly. Besides, as the first and second switches are used to connect other chain networks, external network devices or external redundant network architectures, it allows more network nodes to be included in single network architecture and provides flexibility and compatibility in use by including different redundancy mechanisms.

Abstract: The present invention relates to a method for conducting redundancy checks in a chain network, wherein the two ends of the chain network are equipped with a first switch and a second switch respectively, and a port of the first or second switch used for communicating with an external network is set to be blocked, so that when an link failure happens to any switch of the chain network, the two switches close to the link failure port sends control packets to the first and second switches respectively to forward the port that is originally blocking, thus making the network to return to normal state quickly. Besides, as the first and second switches are used to connect other chain networks, external network devices or external redundant network architectures, it allows more network nodes to be included in single network architecture and provides flexibility and compatibility in use by including different redundancy mechanisms.

Abstract: A method for checking a ring network redundancy includes a first exchanger and a second exchanger. When the first exchanger is set as a master, the plurality of second exchangers serve as the ring members; the first exchanger has a connection port, which is set as blocking, and the rest of connection ports are set as forwarding. The plurality of second exchangers regularly detects the plurality of connection ports for any outstanding status occurred in the connection status. When an outstanding status occurred, the CF5 is transmitted to the first exchanger and the first exchanger converts the connection port into the forwarding status, and the CF4 is transmitted to the plurality of second exchangers in order to renew the Mac address table. The method of sending out CF through a plurality of ring members can reduce the risk of losing the CF due to overloading network or having too much single network equipments, and thereby increase the reliability of the ring network during the redundancy checking.

Abstract: An equipment monitoring system line swap fast recovery method by installing a link detection mechanism in an Ethernet switch of an equipment monitoring system in an Ethernet between equipments at respective terminals of the Ethernet and a monitor equipment for enabling the monitor equipment to monitor working status of the equipments, such that when one equipment changed from a first port of the Ethernet switch to a second port thereof, the link detection mechanism detects the change of the connection, clears all address entry for the first port, and learns all address entry for the second port, for enabling the equipment monitoring system to keep functioning during the change of the connection.

Abstract: A remote data scope by installing a remote monitor equipment and an Ethernet switch in an Ethernet to monitor working status of remote equipments (computers or power generators, etc.) at terminals of the Ethernet. The Ethernet switch includes a packets switching mechanism adapted to copy working status packets of the remote equipments, a processor, a packets conversion mechanism controlled by the processor to convert the format of working status packets from the remote equipments, and communication systems adapted to transmit working status packets from the remote equipments to the packets switching mechanism and formatted working status packets from the packets conversion mechanism to the remote monitor equipment, for enabling the remote monitor equipment to unpack received formatted working status packets so as to obtain working status of the remote equipments.

Abstract: A remote equipment monitoring system with active warning function is constructed to include multiple remote equipments to be monitored, an Ethernet connected to the remote equipments, a remote monitor equipment installed in the Ethernet and adapted to monitor working status of the remote equipments, and an Ethernet switch installed in the Ethernet and adapted to collect working status messages of the remote equipment and forward collected working status message to the remote monitor equipment. The Ethernet switch has an event detection mechanism adapted to detect working status of the remote equipments, a processor adapted to analyze working status messages collected by the event detection mechanism, and a warning message generator controlled by the processor to generate a warning E-mail message to the remote monitor equipment when one working message judged to be the message of an abnormal working status.

Abstract: An equipment monitoring system line swap fast recovery method by installing a link detection mechanism in an Ethernet switch of an equipment monitoring system in an Ethernet between equipments at respective terminals of the Ethernet and a monitor equipment for enabling the monitor equipment to monitor working status of the equipments, such that when one equipment changed from a first port of the Ethernet switch to a second port thereof, the link detection mechanism detects the change of the connection, clears all address entry for the first port, and learns all address entry for the second port, for enabling the equipment monitoring system to keep functioning during the change of the connection.