Abstract: Embodiments of the present disclosure provide a method for indicating a multicast forwarding entry and a device. The method includes: receiving a packet from a first node, wherein the packet comprises a multicast control message and an access loop identifier; obtaining, according to a multicast Internet Protocol (IP) address in the multicast control message, a multicast Media Access Control (MAC) address; obtaining an identifier of a first port according to the access loop identifier, wherein the first port is an egress port, on the multicast path, of the first port; sending a first forwarding entry to the first node, wherein a destination address of the first forwarding entry is the multicast MAC address and egress port information of the first forwarding entry is the identifier of the first port.

Abstract: This application provides a message processing method, an access controller, and a network node. In some aspects, an access controller receives a first message used to obtain Internet Protocol (IP) address information for a user-side device and a first access loop identifier of a first network node, where the first message and the first access loop identifier are sent by the first network node, the first access loop identifier is not carried in the first message. The access controller obtains an authentication, authorization and accounting (AAA) message according to the first access loop identifier, wherein the AAA message comprises the first access loop identifier. The access controller sends the AAA message to an AAA server.

Abstract: Embodiments of the present invention provide a method and an apparatus for generating forwarding entries for devices in an optical network. The optical network includes a virtual access node AN, where the virtual AN includes a first access device, a second access device, and an access port management apparatus. The access port management apparatus acquires a virtual AN forwarding entry sent by an access management device; generates a first forwarding entry for a first device in the first access device and the second access device according to the virtual AN forwarding entry; and generates a second forwarding entry for a second device in the first access device and the second access device according to the virtual AN forwarding entry. The virtual AN may automatically generate forwarding entries for the first access device and second access device in the virtual AN according to the virtual AN forwarding entry.

Abstract: Embodiments of the present invention provide an access system and a communication method for an optical fiber network. A virtual ONU located on a user side is established, and an ONU control plane function, a PON MAC function, and a QoS function on an existing ONU is moved downwards to a virtual ONU. After the forgoing function modules are removed from the existing ONU, the existing ONU becomes an ONU physical converter and only has a function of converting the PON physical layer frame and the first user side physical layer frame.

Abstract: A network access method, an authentication method, a communications system, and relevant devices are provided. The authentication method includes: receiving a request message sent from an Access Node (AN), wherein the request message carries subscriber line information and a Link-Local Address (LLA); sending an access request to an Authentication, Authorization and Accounting (AAA) server according to the subscriber line information; receiving an authentication result indicating the authentication is successful; determining whether an address matching the LLA carried in the request has been stored in the BNG; and storing the LLA in the BNG, if the address matching the LLA is not stored in the BNG.

Abstract: This application provides a method for processing a packet in an access network. The method includes: receiving, by an access device, a layer 2 protocol packet sent by a central device, where a destination address of the layer 2 protocol packet is a MAC address of the access device; obtaining, flow table information according to the layer 2 protocol packet, and generating a flow table entry, where the flow table entry includes a match field and an instruction; receiving a service packet; and determining a matching flow table entry according to the service packet, and when the matching flow table entry is the generated flow table entry, processing the service packet according to the instruction in the generated flow table entry. According to the technical solution, the access device can obtain the flow table information from the central device without the need of configuring a public IP address.

Abstract: Embodiments provide a method and a device for processing network uplink and downlink data, where the method includes a central node device and a remote node device. The central node device is an edge device of a backbone network, and the remote node device is an edge device of a user network. The method includes: performing, by the central node device, downlink digital signal processing on a first data frame received from a network side to obtain a downlink to-be-sent data frame, and sending, the downlink to-be-sent data frame to the remote node device.

Abstract: An embodiment of the present invention discloses a method for access network virtualization and a proxy node, relates to a technical field of communication, and does not need to modify an existing management system when a new type of access network node is added into an original access network. The method of the present invention comprises: a proxy node establishing a relationship mapping table; the proxy node receiving a packet sent by a management system; the proxy node querying the relationship mapping table according to first parameter information to obtain second parameter information; and sending the packet to a remote access node corresponding to the second parameter information according to the second parameter information. The present invention is applicable to a proxy node.

Abstract: The present invention relates to a method and device for a load balance. The device comprises: a selecting module, configured to select, according to a load state and fault state of each network edge node in a network edge node pool of an access network, a network edge node having the capacity of bearing a load to serve a user equipment from the network edge node pool when a message including information indicating that the user equipment intends to access a network is received; and a sending module, configured to send a message for indicating the selected network edge node to serve the user equipment to the selected network edge node. The method and device of the present invention can improve a utilization rate of a network edge node and lower the requirement for the capacity of the network edge node.

Abstract: Embodiments of the present invention provide an access system and a communication method for an optical fiber network. A virtual ONU located on a user side is established, and an ONU control plane function, a PON MAC function, and a QoS function on an existing ONU is moved downwards to a virtual ONU. After the forgoing function modules are removed from the existing ONU, the existing ONU becomes an ONU physical converter and only has a function of converting the PON physical layer frame and the first user side physical layer frame.

Abstract: A method for allocating uplink and downlink bandwidth, includes: receiving, by a primary ONU, a primary PON downlink frame sent by a nested OLT, where the primary PON downlink frame carries a primary ONU uplink bandwidth grant and a secondary ONU uplink bandwidth grant; parsing, by the primary ONU, the primary PON downlink frame to acquire the primary ONU uplink bandwidth grant and the secondary ONU uplink bandwidth grant; and sending, by the primary ONU, a secondary PON downlink frame to a secondary ONU, where the secondary PON downlink frame carries the acquired secondary ONU uplink bandwidth grant. The present disclosure achieves an optimal overall performance for the two stages of PONs by considering general conditions of the two stages of PONs, and meanwhile ensures a maximum available bandwidth for the two stages of PONs during formulation of bandwidth grants.

Abstract: The present invention discloses a method, apparatus, and system for allocating a label in a seamless multi-protocol label switching network, which greatly reduces the complexity of the access node device, effectively cuts down the operation costs for the operator, and enhances the scalability of the system. The method includes: obtaining label information of a first access node, where the label information comprises the pseudowire PW destination address of the first access node; and sending the label information to a second router by using a BGP message or a T-LDP message so that the second router configures a PW label and/or a flow label of the first access node to a second access node by using the access network configuration protocol according to the label information.

Abstract: A network communication method includes: allocating a pseudo wire (PW) label and/or an Ethernet (ETH) label through a layer 2 label allocation protocol; and performing data communication according to the allocated PW label and/or the allocated ETH label. According to the embodiments of the present invention, the label is allocated through the layer 2 label allocation protocol, thus maintaining the node device as a layer 2 device, meanwhile implementing label allocation, and reducing the complexity and improvement cost of network access.

Abstract: The present invention relates to method for synchronizing time, apparatus and system. The method discloses an OLT generates a Passive Optical Network (PON) downstream frame from to an Optical Network Unit (ONU), wherein the PON downstream frame comprises a time synchronization message based on Ethernet protocol, wherein the time synchronization message comprises a time value that is referenced to a PON Media Access Control (MAC) control layer and that indicates the ONU to adjust a time of a clock coupled to the ONU; and send the PON downstream frame.

Abstract: Embodiments of the present invention disclose a troubleshooting method. The method includes: determining, by an aggregation node when a link fault or a device fault occurs on an OLT side, an active logical port used by the active OLT to forward a data packet; searching, by the aggregation node, a locally stored logical port mapping table according to the active logical port to obtain a standby logical port corresponding to the active logical port, where the standby logical port supports a same user service as the active logical port; and triggering, by the aggregation node, the standby OLT to enable the standby logical port to receive a data packet that is sent by the standby OLT through the standby logical port. The implementation of the present invention can provide utmost compatibility with the live network and enable a communication link to recover from a fault quickly.

Abstract: Embodiments of the present disclosure provide a data synchronization method and system, and an optical network unit. An ONU receives synchronization data that is transmitted by a first OLT through a GEM port corresponding to a predetermined GEM port ID or a logical link corresponding to a predetermined LLID, and stores the synchronization data. When a fault occurs on the first OLT or on a backbone optical fiber connected to the first OLT, the ONU transmits the synchronization data to a second OLT so that the second OLT recovers services according to the synchronization data.

Abstract: A method for forwarding data in a layer-2 network is provided. A first node receives a first data packet including a customer destination MAC address and customer data; generates a second data packet including a source virtual MAC address, a destination virtual MAC address and at least part of the first data packet. The at least part of the first data packet includes the customer destination MAC address and the customer data. The source virtual MAC address is a virtual MAC address assigned to the first node, and the destination virtual MAC address corresponds to the customer destination MAC address. The virtual MAC address assigned to the first node includes a first virtual MAC address segment with a first mask, which indicates a virtual MAC address space including virtual MAC addresses of child nodes of the first node. Then the first node forwards the second data packet.

Abstract: Embodiments of the present invention provide a method and an apparatus for generating forwarding entries for devices in an optical network. The optical network includes a virtual access node AN, where the virtual AN includes a first access device, a second access device, and an access port management apparatus. The access port management apparatus acquires a virtual AN forwarding entry sent by an access management device; generates a first forwarding entry for a first device in the first access device and the second access device according to the virtual AN forwarding entry; and generates a second forwarding entry for a second device in the first access device and the second access device according to the virtual AN forwarding entry. The virtual AN may automatically generate forwarding entries for the first access device and second access device in the virtual AN according to the virtual AN forwarding entry.

Abstract: Embodiments of the present invention relate to the field of communications technologies and provide a service processing method, device, and system, where service expansion can be performed without changing an original device of an operator. The embodiments of the present invention include: acquiring business service information corresponding to a to-be-processed service flow, where the business service information includes a service flow identifier of the to-be-processed service flow and a service label corresponding to the service flow identifier; and sending the business service information corresponding to the to-be-processed service flow to a service router, so that the service router processes, according to the business service information, the to-be-processed service flow.

Abstract: The present invention provides a service processing method, device and system. The method includes: receiving a service packet, and searching, according to a service identity in the service packet, a service routing table corresponding to the service packet, where the service identity represents a service to be processed by the service packet; and the service routing table includes a service label used to represent a service feature in the service, and a routing path for processing the service feature; and setting the service label in the service packet according to the service routing table, and sending, according to the routing path, the service packet to a service processing device configured to process the service feature corresponding to the service label, so that the service processing device processes the service feature corresponding to the service label. The present invention reduces an impact on an original service and improves scalability.