Abstract: Embodiments of the present disclosure relate to the field of communications technologies and disclose a packet loss detection method, an apparatus, and a system. The method includes: collecting, by a first network device according to packets sent to a second network device, statistics on a first result corresponding to each group of packets, one first result includes a quantity of packets in one group of packets and a section identifier of the group of packets, each group of packets includes multiple packets, and multiple packets are continuously sent by first network device and belong to a section corresponding to a section identifier of the group of packet; sending, by first network device, first result corresponding to each group of packets to a controller according to a preset rule, so that controller determines whether a packet in the packets sent by first network device to second network device is lost.

Abstract: A method for data transmission includes receiving a packet, determining a first member link in a first group of member links based on a first decision manner. If the first member link is unavailable, the method includes determining a second member link in a second group of member links based on a second decision manner, where all member links in the second group of member links are available and the first group of member links includes the second group of member links and an unavailable member link. The method includes sending the packet through the second member link.

Abstract: Embodiments of the present disclosure relate to the field of communications technologies and disclose a packet loss detection method, an apparatus, and a system. The method includes: collecting, by a first network device according to packets sent to a second network device, statistics on a first result corresponding to each group of packets, one first result includes a quantity of packets in one group of packets and a section identifier of the group of packets, each group of packets includes multiple packets, and multiple packets are continuously sent by first network device and belong to a section corresponding to a section identifier of the group of packet; sending, by first network device, first result corresponding to each group of packets to a controller according to a preset rule, so that controller determines whether a packet in the packets sent by first network device to second network device is lost.

Abstract: A method for data transmission includes receiving a packet, determining a first member link in a first group of member links based on a first decision manner. If the first member link is unavailable, the method includes determining a second member link in a second group of member links based on a second decision manner, where all member links in the second group of member links are available and the first group of member links includes the second group of member links and an unavailable member link. The method includes sending the packet through the second member link.

Abstract: Embodiments of the present invention relate to the field of communications technologies and disclose a packet loss detection method, an apparatus, and a system. The method includes: collecting, by a first network device according to packets sent to a second network device, statistics on a first result corresponding to each group of packets, one first result includes a quantity of packets in one group of packets and a section identifier of the group of packets, each group of packets includes multiple packets, and multiple packets are continuously sent by first network device and belong to a section corresponding to a section identifier of the group of packet; sending, by first network device, first result corresponding to each group of packets to a controller according to a preset rule, so that controller determines whether a packet in the packets sent by first network device to second network device is lost.

Abstract: A method for sending a Transparent Interconnection of Lots of Links (TRILL) data frame, comprising acquiring a user virtual local area network (VLAN) or a combination of a user VLAN and a user multicast medium access control (MAC) address in a first protocol packet, and a first port identifier; storing a correspondence there-between in a forwarding table; searching, according to the user VLAN or the combination of the user VLAN and the user multicast MAC address in a TRILL data frame received, the forwarding table for a second port identifier corresponding to the VLAN or the combination of the user VLAN and the user multicast MAC address in the TRILL data frame, and forwarding the TRILL data frame from a pseudo wire (PW) port corresponding to the second port identifier.

Abstract: Embodiments of the present invention relate to the field of communications technologies and disclose a packet loss detection method, an apparatus, and a system. The method includes: collecting, by a first network device according to packets sent to a second network device, statistics on a first result corresponding to each group of packets, one first result includes a quantity of packets in one group of packets and a section identifier of the group of packets, each group of packets includes multiple packets, and multiple packets are continuously sent by first network device and belong to a section corresponding to a section identifier of the group of packet; sending, by first network device, first result corresponding to each group of packets to a controller according to a preset rule, so that controller determines whether a packet in the packets sent by first network device to second network device is lost.

Abstract: A method implemented in an FCoE controller and manager (FCM) coupled to a first fiber channel over Ethernet (FCoE) data forwarder (FDF), the method comprising sending to the first FDF a first Controlling FDF Information (CFI) request that requests the name of the first FDF, receiving from the first FDF a first CFI acceptance comprising the name of the first FDF, receiving from the first the second CFI acceptance associated with a second FDF, wherein the first CFI acceptance and the second CFI acceptance allow the FCM to develop topology information for a FCoE network comprising the FCM, the first FDF, and the second FDF, creating a first base forwarding table for the first FDF, and creating a second base forwarding table for the second FDF, wherein the second base forwarding table is different than the first base forwarding table.

Abstract: A method for sending a Transparent Interconnection of Lots of Links (TRILL) data frame, comprising acquiring a user virtual local area network (VLAN) or a combination of a user VLAN and a user multicast medium access control (MAC) address in a first protocol packet, and a first port identifier; storing a correspondence there-between in a forwarding table; searching, according to the user VLAN or the combination of the user VLAN and the user multicast MAC address in a TRILL data frame received, the forwarding table for a second port identifier corresponding to the VLAN or the combination of the user VLAN and the user multicast MAC address in the TRILL data frame, and forwarding the TRILL data frame from a pseudo wire (PW) port corresponding to the second port identifier.

Abstract: A first fiber channel over Ethernet (FCoE) data forwarder (FDF), comprising a memory coupled to a processor, wherein the memory comprises instructions that cause the processor to receive a base forwarding table from an FCoE controller and manager (FCM), wherein the FDF comprise a plurality of ports, and wherein the first FDF uses the base forwarding table to determine which of the ports to send a first FCoE data frame comprising fiber channel (FC) data, receive a second FCoE data frame comprising a media access control (MAC) address, a port identifier, and FC data, and update the base forwarding table using the MAC address and the port identifier.

Abstract: A method implemented in an FCoE controller and manager (FCM) coupled to a first fiber channel over Ethernet (FCoE) data forwarder (FDF), the method comprising sending to the first FDF a first Controlling FDF Information (CFI) request that requests the name of the first FDF, receiving from the first FDF a first CFI acceptance comprising the name of the first FDF, receiving from the first the second CFI acceptance associated with a second FDF, wherein the first CFI acceptance and the second CFI acceptance allow the FCM to develop topology information for a FCoE network comprising the FCM, the first FDF, and the second FDF, creating a first base forwarding table for the first FDF, and creating a second base forwarding table for the second FDF, wherein the second base forwarding table is different than the first base forwarding table.

Abstract: A first fiber channel over Ethernet (FCoE) data forwarder (FDF), comprising a memory coupled to a processor, wherein the memory comprises instructions that cause the processor to receive a base forwarding table from an FCoE controller and manager (FCM), wherein the FDF comprise a plurality of ports, and wherein the first FDF uses the base forwarding table to determine which of the ports to send a first FCoE data frame comprising fiber channel (FC) data, receive a second FCoE data frame comprising a media access control (MAC) address, a port identifier, and FC data, and update the base forwarding table using the MAC address and the port identifier.

Abstract: A fiber channel over Ethernet (FCoE) network component, comprising a first FCoE data forwarder (FDF) configured to couple to a second FDF and to a third FDF, wherein the first FDF is configured to receive a FCoE frame from the second FDF and send the FCoE frame to the third FDF, wherein the frame comprises a destination address and a fiber channel (FC) payload, and wherein the first FDF does not change the destination address of the frame when the first FDF forwards the frame to the third FDF.

Abstract: A method for optimizing communication between mobile nodes (MNs) in a mobile IP network includes the steps for sending: data packets from a MN in a mobile IP network to its foreign agent device, receiving the data packets at the foreign agent device, determining that a destination MN is attached to the foreign agent device, and forwarding the data packets to the destination MN.