Abstract: A method for determining a path computation element and a communications device are provided, where location information and transmission capability information of a PCE are carried in a route advertisement message and are advertised to a PCC, so that the PCC can select, according to the transmission capability information of the PCE in the route advertisement message, a PCE that meets a transmission capability of the PCC, to perform path computation; therefore, a problem that a transmission capability mismatch between the PCC and the PCE causes a failure in establishing a PCEP session is avoided.

Abstract: A method for network diagnosis processing of the present invention includes: receiving, by a first network tunnel source end, at a first network layer, a network diagnosis instruction sent by an instruction center; sending, by the first network tunnel source end, at the first network layer, a diagnosis message to a first network layer of a first network tunnel peer end, where the diagnosis message carries characteristic information, so that the first network tunnel peer end reports, at the first network layer, a diagnosis result including the characteristic information to the instruction center; and sending, by the first network tunnel source end, at the second network layer, the diagnosis message to a second network layer of the first network tunnel peer end, so that the first network tunnel peer end reports, at the second network layer, a diagnosis result including the characteristic information to the instruction center.

Abstract: Embodiments of the present disclosure relate to a method for determining a path computation element and a communications device, where location information and transmission capability information of a PCE are carried in a route advertisement message and are advertised to a PCC, so that the PCC can select, according to the transmission capability information of the PCE in the route advertisement message, a PCE that meets a transmission capability of the PCC, to perform path computation; therefore, a problem that a transmission capability mismatch between the PCC and the PCE causes a failure in establishing a PCEP session is avoided.

Abstract: The present invention discloses a bandwidth adjustment method and a related device, so as to flexibly adjust a bandwidth. A controller obtains behavior characteristic statistics sent by an end cloud node device, and obtains bandwidth resources remaining on a system. The behavior characteristic statistics are a statistical result indicating behavior characteristics of occupying network bandwidth resources by a user when accessing the end cloud node device. The controller determines a bandwidth adjustment amount of the end cloud node device according to the behavior characteristic statistics and bandwidth remaining on the system. The controller sends a bandwidth adjustment instruction to a first network device. The bandwidth adjustment instruction is used to instruct the first network device to adjust, according to the bandwidth adjustment amount, a bandwidth allocated to the end cloud node device by a network device on a transmission link.

Abstract: A packet forwarding method and a related apparatus to improve packet forwarding efficiency, where the method includes generating, by a controller, addressing information for a switching node, recording, by the controller, a correspondence between the switching node and the addressing information, and sending, by the controller, the addressing information to the switching node, so that the switching node forwards a packet according to the addressing information.

Abstract: A hardware acceleration method, a compiler, and a device, to improve code execution efficiency and implement hardware acceleration. The method includes: obtaining, by a compiler, compilation policy information and source code, where the compilation policy information indicates that a first code type matches a first processor and a second code type matches a second processor; analyzing, by the compiler, a code segment in the source code according to the compilation policy information, and determining a first code segment belonging to the first code type or a second code segment belonging to the second code type; and compiling, by the compiler, the first code segment into first executable code, and sending the first executable code to the first processor; and compiling the second code segment into second executable code, and sending the second executable code to the second processor.

Abstract: Embodiments of the present application disclose a method for encapsulating a service routing packet, including: receiving a first packet, and determining that a next hop is a Legacy SPE; temporarily storing a correspondence between an SFC header and a first original packet that are included in the first packet, and sending the first original packet to the Legacy SPE; receiving a returned second original packet, and determining, according to an acquired mapping rule of an original packet of the Legacy SPE, that the SFC header of the first packet corresponds to the second original packet; and encapsulating the SFC header of the first packet in the second original packet, to form a new service routing packet. By means of the embodiments of the present application, a problem of an abnormal interruption caused by a loss of an SFC header can be avoided.

Abstract: A method for network diagnosis processing of the present invention includes: receiving, by a first network tunnel source end, at a first network layer, a network diagnosis instruction sent by an instruction center; sending, by the first network tunnel source end, at the first network layer, a diagnosis message to a first network layer of a first network tunnel peer end, where the diagnosis message carries characteristic information, so that the first network tunnel peer end reports, at the first network layer, a diagnosis result including the characteristic information to the instruction center; and sending, by the first network tunnel source end, at the second network layer, the diagnosis message to a second network layer of the first network tunnel peer end, so that the first network tunnel peer end reports, at the second network layer, a diagnosis result including the characteristic information to the instruction center.

Abstract: Embodiments of the present disclosure relate to a method for determining a path computation element and a communications device, where location information and transmission capability information of a PCE are carried in a route advertisement message and are advertised to a PCC, so that the PCC can select, according to the transmission capability information of the PCE in the route advertisement message, a PCE that meets a transmission capability of the PCC, to perform path computation; therefore, a problem that a transmission capability mismatch between the PCC and the PCE causes a failure in establishing a PCEP session is avoided.

Abstract: A method for configuring a service node, a service node pool registrar, and a system are provided. The service node pool registrar receives a service node query request sent by a management configuration device, where the service node query request includes a service requirement, where the service requirement is from a user or caused by a network change; the service node pool registrar searches a service node database to obtain service node information that matches the service node query request and sends the matching service node information to the management configuration device, so that the management configuration device performs network and service configuration on the matching service node according to obtained network topology information and the matching service node information.

Abstract: A redirector, a relay, a system for configuring route information, and a method for updating route information are disclosed herein. The redirector includes: a route storing module and a route indicating module. The redirector further includes: a monitoring module which is coupled to communicate with the route storing module and configured to monitor change of the route configuration information; and a notifying module which is coupled to communicate with the monitoring module and configured to send a notification to the intermediate node managed by the redirector, where the notification indicates that the route information corresponding to the changed route configuration information is invalid. Through the foregoing solution, after the route configuration information changes, a notification may be sent in time to indicate that the previously subscribed route indication information is invalid, thus better ensuring correct forwarding of the service request message and improving the QoS.

Abstract: A method for authorizing and accounting a host with multiple addresses in IPv6 Network includes: authorizing multiple addresses of the host respectively; charging the multiple addresses authorized of the host respectively. A system based on the above method includes: a network access server, for transmitting accounting information of multiple addresses of a host upon receiving authorization information; an Authentication, Authorization and Accounting (AAA) server, for authorizing the multiple addresses of the host respectively, and transmitting the authorization information to the network access server; receiving the accounting information transmitted from the network access server, and charging the multiple addresses according to the accounting information respectively.

Abstract: The present invention relates to mobile communications technologies, and discloses a method, device, and system for pre-authentication. A pre-authentication device receives a pre-authentication message that carries a pre-authentication option; determines a Mobile Node (MN) to be pre-authenticated according to the pre-authentication message; sends an authentication request message to an Authentication, Authorization and Accounting (AAA) server to request authentication of the MN; receives an authentication response message that is sent by the AAA server, where the authentication response message carries a pre-authentication key used between a Candidate Authenticator (CA) and the MN; and sends the pre-authentication key to the MN. Through implementation of the present invention, the pre-authentication key is obtained before the MN switches to the CA. In this way, security of communication is enhanced, and delay of switching and authentication is shortened.

Abstract: A method for generating a secure association key (SAK), a method for realizing medium access control security (MACsec) and a network device are provided. The method for generating an SAK includes the following steps. A sending key selection protocol (KSP) instance sends a key selection protocol data unit (KSPDU) to the other KSP instances in the same secure connectivity association (CA). The KSPDU includes a secure connectivity association key identifier (CKI) of the instance and information about a MACsec level that the sending KSP instance belongs to. If the receiving KSP instance and the sending KSP instance belong to the CA with the same MACsec level, an SAK is generated based on the KSPDU. The MACsec of multiple levels in a communication network and the secure MACsec network communication with multiple levels are realized, thus ensuring the confidentiality of the network communication.

Abstract: A method for paging a terminal device across heterogeneous networks, where networks using different wireless standards send paging messages and location management information, and thus the load terminal devices can be alleviated and wireless resources occupied can be reduced. The method includes: selecting, by a current network, another network to execute a paging procedure, when receiving user data and determining a corresponding communication interface of the terminal device in the current network to be in a Dormant Mode, where the another network uses wireless standards different from the current network; sending, by the another network, a paging message to the terminal device to enable the terminal device to reconnect to the current network. A terminal device and network system is also provided.

Abstract: The disclosure provides a method and apparatus for a dual-stack Mobile Node (MN) to roam in an IPv4 network. The apparatus mainly includes a Foreign Home Agent (FHA). The method mainly includes: acquiring, by the MN, a temporary IPv4 address THOA that the FHA assigns to the MN, and registering its IPv4 Care-of Address (COA) in the FHA; and delivering, by the FHA, a packet between the MN and a Corresponding Node (CN) or Home Agent (HA), according to information about the IPv4 COA, which is assigned for the MN and has been registered by the MN in the FHA. With the method of the invention, a routing solution may be implemented for a dual-stack MN to roam from an IPv6 network to an IPv4 network.

Abstract: A loop withdrawal method in multi-protocol label switching is disclosed. When detecting a rewinding event of colored thread, a node judges whether an upstream interface of the colored thread is in a stalled status, and if yes, prohibits distribution of a colored thread rewinding message via the upstream interface of the colored thread; otherwise, the node continues to distribute the colored thread rewinding message and transmit label mapping via the upstream interface. When detecting a withdrawal event of the colored thread, the node removes colored thread information of the upstream interface of the colored thread, judges whether the node has received another colored thread for a same service, and if yes, extends a new colored thread via a downstream interface of the colored thread; otherwise, the node continues to distribute a colored thread withdrawal message via the downstream interface of the colored thread.

Abstract: A method of packet routing for an LMM network includes: by an LMA, determining that both a sending end node and a receiving end node are located in an LMM domain controlled by the LMA, and starting a route optimization; directly forwarding, by an access device attached to the sending end node, a packet to be sent to the receiving end node to an access device attached to the receiving end node without being forwarded by the LMA; and forwarding, by the access device attached to the receiving end node, to the receiving end node. A system of packet routing for an LMM network includes a sending end node, a receiving end node, an access device attached to the sending end node, an access device attached to the receiving end node, and an LMA.

Abstract: A method and system for establishing a peer to peer connection in a P2P network and a peer device in the P2P network, wherein the method comprises of the following: (1) a management node in the P2P network receives a resource request; (2) the management node selects one or more peers which meet the demand from a resource list established previously according to the logon information of the other peers in the P2P network to return it to a resource request peer; (3) the connection is established between the said resource request peer and the said peers which meet the demand.

Abstract: The present invention relates to mobile communications technologies, and discloses a method, device, and system for pre-authentication. A pre-authentication device receives a pre-authentication message that carries a pre-authentication option; determines a Mobile Node (MN) to be pre-authenticated according to the pre-authentication message; sends an authentication request message to an Authentication, Authorization and Accounting (AAA) server to request authentication of the MN; receives an authentication response message that is sent by the AAA server, where the authentication response message carries a pre-authentication key used between a Candidate Authenticator (CA) and the MN; and sends the pre-authentication key to the MN. Through implementation of the present invention, the pre-authentication key is obtained before the MN switches to the CA. In this way, security of communication is enhanced, and delay of switching and authentication is shortened.