The invention provides a mirror image storage and distribution system for virtual machines. The mirror image storage and distribution system comprises cluster management servers, local object storage servers, DHT-MAP mapping servers and QEMU block drivers, wherein the local object storage servers, the DHT-MAP mapping servers and the QEMU block drivers run on test computers of a distributed cloud computing platform. By the adoption of the mirror image storage and distribution system, batch and fast deployment of distributed cross-region virtual machines can be achieved, and the defects that the period is long, dynamic extension can not be achieved and usability is low when a traditional system and method are used for deploying the virtual machines can be overcome.

Mirror image storage and distribution system for virtual machines

Method for realizing interconnection of integrated identification network and traditional IPv4 (Internet Protocol Version 4) internet

The presence of a host is detected at a first data center. A message is generated at the first data center to indicate the presence of the host. The message has a limited lifetime. The message is transmitted to a second data center.

Host mobility messaging

The invention discloses a method for testing the routing performance of a core network of an integrated identification network. The effective routing capacity of a generalized switch router is tested, and one or more of a plurality of performance indexes comprising core network routing oscillation, core network routing convergence time and core network routing learning rate are measured so as to measure the routing performance of the core network of the integrated identification network. The invention also discloses the method for testing the performance indexes. By the method provided by the invention, a feasible scheme is provided for the routing performance evaluation of the core network of the integrated identification network; and the method is of important meaning for actual equipment selection and network deployment.

Method for testing routing performance of core network of integrated identification network

Automatic configuration method of routing protocol, routing device and authorization server

The invention belongs to the technical field of network communication, particularly relates to a subnet access method based on an identity-position separate mapping mechanism. The method is used for accessing a terminal into a virtual tree network structure comprising a switch router and a subnet router to realize a micromotion protocol. The method comprises the steps of: establishing the virtual tree network structure in a default route mode; setting the route mode of the subnet router into a host route mode and setting the route mode for accessing the switch router into a policy route mode; and accessing the terminal into the subnet router. By the identity-position separate mapping mechanism, the invention realizes the micromotion protocol, solves the extensible problem of a network route, reduces the switching delay of the terminal among networks, overcomes obstacles existing when a heterogeneous terminal is accessed into a network, and avoids the generation of triangular route.

Subnet access method based on identity-position separate mapping mechanism

The invention discloses a method for transition from the traditional internet to a universal identifier network, which allows users of the traditional internet to communicate with users of a universal identifier network without upgrading by introducing an expansion access switched router Ex-ASR. When the users of the traditional network communicate with those of the universal identifier network, a data packet is sent to an expansion access switched router, and an access identifier and an IP address in the data packet are replaced by a switched routing identifier to be transmitted in a core network of the universal identifier network; and for the access switched router of an opposite terminal, the switched routing identifier is replaced by the access identifier and the IP address to send amessage to a target node. The invention provides a method to solve the problem of intercommunication between the traditional internet and the universal identifier network, so that the users of the traditional internet can operate normally and independently without suffering from any influence of the universal network; and the method is favorable for the further development of the universal identifier network.

Method for transition from traditional internet to universal identifier network

The invention discloses a method for implementing integrated network subnet movement. The method comprises the following steps of: 1) detecting mobility, namely sending access request message to an access switching router and executing the following steps 2) and 3) if a mobile router detects that the subnet moves to a new network, otherwise, sending response message to the access switching router; 2) informing a mapping server of a new mapping relationship, namely distributing the mapping relationship to terminals in the subnet and informing the mapping server of updating the mapping table by the access switching router; and 3) updating the mapping relationship on the access switching router, namely deleting the old mapping relationship on an access switcher, increasing the mapping relationship of a communication opposite terminal node on the access switching router and updating the mapping relationship of terminals in a mobile network on a communication opposite terminal access switching router. The method can realize routing optimization and effectively support the movement of the subnet, and the terminals in the subnet do not know the position of core network equipment, so the security of the core network can be protected.

Method for implementing integrated network subnet movement

The invention discloses a method for realizing a mapping relation between an identity and a position in the technical field of computer networks. The method comprises the following steps of: dividing a network into management domains; configuring at least one mapping server connected with other management domains in each management domain, wherein the mapping server stores home domain information; when the home domain information of the mapping server changes, sending an update message to a peer-to-peer mapping server of the mapping server; updating the home domain information of the peer-to-peer mapping server according to the update message by the peer-to-peer mapping server; and forwarding the update message to the peer-to-peer mapping server of the peer-to-peer mapping server until all mapping servers receive the update message and update the home domain information stored in the mapping servers. The problems of inquiry time delay and mobility of large-scale network mapping information are solved.

Method for realizing mapping relation between identity and position

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