摘要:
A method, a system and an apparatus for fast handover, and relates to the field of mobile communication. The method is to create a fixed tunnel relationship between the PAR and the NAR, where a current host route of an MN at the access routers PAR and NAR is created; and the access routers (PAR and NAR) and the MN encapsulating a message according to the current host route information of the MN, and transferring the message through a tunnel. The apparatus includes a tunnel creating module, a host route creating module, a neighbor relationship creating module, and a transferring module. The technical solution under the present disclosure needs to create only one tunnel, which improves the router efficiency greatly and makes the handover process smoother.
摘要:
A method for transmitting a media independent handover (MIH) message includes the following steps: The MIH message is divided into segments and the segments are encapsulated into transmission control protocol (TCP) segments; the TCP segments are then encapsulated into Internet protocol (IP) data packets; the IP data packets is transmitted to a receiving end. The method, system, and device for transmitting an MIH message described herein provide flow controls for the MIH message transmission, thereby enhancing the transmission efficiency of the MIH message.
摘要:
A method for transferring an IP transmission session is disclosed, including the following: a transmission session is created between the first node and second node based on a single IP protocol; the first node and second node obtain a transferable address pair by exchanging the session transfer management signaling; the transferable address pair is checked for bidirectional reachability; the transferable address pair is available if reachable in both directions, or is not available if unreachable in either direction; and the transmission session is transferred through the available transferable address pair. An apparatus for transferring an IP transmission session is also disclosed. Through the technical solution under the present disclosure, a session can be transferred in a network where IPv4 coexists with IPv6 without substantially affecting continuity of the end-to-end transmission session, thus fulfilling the requirements in the transition period during which IPv4 coexists with IPv6.
摘要:
A system for providing IPv6 services, including a node registration agent for use in applying for a home address for the device, registering the device to a home agent and informing the device of the home address. A method for providing IPv6 services, comprising: the device accessing an IPv6 network and acquiring a forwarding address; the device making a remote registration to the node registration agent; the node registration agent applying for a home address for the device, registering the device to the home agent, and informing the device of the home address; the communication counterpart of the device sending messages using the home address as the destination address; the home agent receiving the message and forwarding the message to the forwarding address of the device; and eventually providing the device with the IPv6 services. Application of the system and method reduces the cost, and makes possible the IPv6 services.
摘要:
A method for detecting application layer protocol of Internet Protocol version 6 (IPv6) network, includes: sending, by an application layer protocol detection initiating node, a detection request message to an application layer protocol detection responding node. When detection request message is received, the detection responding node responds to the detection request by sending a detection acknowledge message to the detection initiating node. When receiving the detection acknowledge message the detection initiating node performs message interaction over the application layer protocol of the IPv6 network with the detection responding node, to obtain performance parameters for evaluating operation condition of the application layer protocol and availability parameters for evaluating availability condition of the application layer protocol.
摘要:
A method for selecting a hash function, a method for storing and searching a routing table and devices thereof are provided. The method for selecting a hash function includes: hashing data to be hashed by using a current alternative hash function; decoding a hash result; accumulating decoded results until no carry occurs during the accumulation; and selecting a current alternative hash function with no carry generated as a formal hash function. The method for storing a routing table includes: dividing the routing table into a next-level node pointer portion and a prefix portion for being stored; and selecting a hash function by using the above method for selecting a hash function. The method for searching a routing table includes: directly searching an IP address to be searched according to a directly stored length of a next-level node pointer portion for storing the routing table; and reading a prefix node according to a searched result. Thus, hash collision can be avoided, and memory resources occupied by the routing table can be effectively reduced.
摘要:
The disclosure provides a method, system and apparatus for backuping HA/MAP in mobile IPv6 network. In the disclosure, at least two HAs/MAPs form a redundant backup group. The at least two HAs/MAPs elect an active HA/MAP and a standby HA/MAP via the VRRP. When the active HA/MAP interacts the signaling message with a mobile node, the HA/MAP in backup status obtains the signaling message interacted by both of them in real time. When the active HA/MAP is invalid, the standby HA/MAP may take over the work in time so that the stability of the active node device of the network is ensured. During the exchange of the active HA/MAP and the standby HA/MAP, the solution ensures a smooth transition of the service.
摘要:
The invention discloses a method for remotely monitoring method of computer network. It is an improvement of the RMON (Remote Network Monitoring) alarm group. The method mainly includes: Setting an alarm-extended table in the RMON alarm group; Defining a combination object in MIB (Management Information Base) that is an expression with two or more than two independent objects; A network management center sends a Set-Request packet with the expression to managed devices to initiate a RMON monitoring process; The expression is calculated and its value is compared with a threshold; When calculated value of the expression exceeds the threshold, processing steps preset by the network management center are taken. The invention supports SNMP (Simple Network Management Protocol), optimizes network performance, and saves network bandwidth and CPU resource of the network management center.
摘要:
A method for selecting a hash function, a method for storing and searching a routing table and devices thereof are provided. The method for selecting a hash function includes: hashing data to be hashed by using a current alternative hash function; decoding a hash result; accumulating decoded results until no carry occurs during the accumulation; and selecting a current alternative hash function with no carry generated as a formal hash function. The method for storing a routing table includes: dividing the routing table into a next-level node pointer portion and a prefix portion for being stored; and selecting a hash function by using the above method for selecting a hash function. The method for searching a routing table includes: directly searching an IP address to be searched according to a directly stored length of a next-level node pointer portion for storing the routing table; and reading a prefix node according to a searched result. Thus, hash collision can be avoided, and memory resources occupied by the routing table can be effectively reduced.
摘要:
A method for testing the service performance of the file transfer protocol in an IPv6 network, the network, including having a client and a server. The method includes the steps of (a) the client transmits a test connection request to the server to establish a connection controlled by the file transfer protocol, (b) after receiving the test connection request, the server establishes the connection controlled by the file transfer protocol, and (c) a connection is established by the server between the client and the server to transfer the test file and perform the performance test of the file transfer protocol. The server can transfer the detecting message for the file transfer protocol in the application layer between nodes in the file transfer protocol network, thereby realizing the detecting and the monitoring in the file transfer protocol. A service performance condition of the file transfer protocol of the network can be instantly detected. Once an abnormity occurs, it can be discovered instantly, and solved by the user, so that the network provides a guarantee of reliability.