A flat unicast routing method suitable for campus network
A campus network and routing technology, applied in the field of computer networks, can solve problems such as poor mobility and inflexible configuration of terminal IP addresses
Active Publication Date: 2019-05-31
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to propose a flat unicast routing method suitable for campus networks in view of the problems of inflexible terminal IP address configuration and poor mobility support in traditional campus network routing methods
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[0061] figure 1 It is a topological structure diagram of the campus network in the background technology. Such as figure 1 Shown: The campus network is mainly composed of switches and terminals. Each switch deploys the IS-IS protocol to calculate the forwarding table (each entry in the forwarding table includes the switch identifier and the interface number of the next hop), and determines the message transmission path according to the result of searching the forwarding table. On a campus network, the IP address of the terminal must be on the network segment of the campus network. Once a new terminal is connected to the campus network, the administrator must reassign a new IP address to the terminal. While the terminal acquires a new IP address, its previously established service connections are all interrupted. In order to continue to maintain the normal service, the terminal needs to re-establish the service connection.
[0062] figure 2 It is an architecture diagram ...
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The invention discloses a flat unicast routing method suitable for a campus network, and aims to solve the problems of inflexible terminal IP address configuration, poor mobility support and the like in the network layer routing method in the traditional campus network. The technical solution is to build a flat unicast routing system suitable for the campus network first. Terminals, ingress switches, egress switches, and intermediate switches are all equipped with corresponding flat unicast routing protocol software. Each switch is configured with a unique switch ID. Each terminal Configure a unique terminal identifier and extend the LSA message in the IS-IS protocol; the terminal, ingress switch, egress switch, and intermediate switch execute the corresponding flat unicast routing protocol in parallel to complete message forwarding. By adopting the present invention, the terminal does not need to obtain a new IP address after being connected to the park network, and when the terminal moves to a different park network, the terminal service connection will not be interrupted, thereby ensuring the reliability of the terminal service.
Description
technical field [0001] The invention relates to a routing method in the field of computer networks, in particular to a flat unicast routing method suitable for park networks. Background technique [0002] A campus network is a typical packet-switching network. Multiple campus networks are connected to the backbone network to form an Internet network. Routing technology is the core technology supporting the campus network. Routing technology ensures the reachability of end-to-end communication in the network by calculating the packet transmission path. Although routing technology exists at all levels in the network model, the performance of routing technology at the network layer directly affects network transmission performance. In the campus network, the network layer routing protocol includes link state routing protocol and distance vector routing protocol. However, the characteristics of routing information propagation one by one and distributed routing calculation lim...
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IPC IPC(8): H04L12/721H04L12/741H04L45/74
CPCH04L45/12H04L45/74
Inventor 王宝生邓文平高先明苏金树陈曙晖彭伟郦苏丹陶静王宏唐竹
Owner NAT UNIV OF DEFENSE TECH