Data switching system and method based on locator identify separation protocol (LISP)

Abstract

The invention discloses a data switching system based on a locator identify separation protocol (LISP), which comprises an IP backbone network and more than one tunneling router. The data switching system is characterized in that the system also comprises an LISP superimposed layer for storing the mapping relationship between an endpoint identifier (EID) and a routing locator (RLOC); the LISP superimposed layer comprises at least one distributed hash table (DHT) server; and the tunneling router is connected with the DHT server, and is used for transmitting a mapping request or a mapping register to the DHT server and receiving a mapping response from the DHT server. The invention also discloses an LISP data switching method. By using the invention, the mapping from the EID to the RLOC can be simply and conveniently realized, thereby flexibly completing the switching of LISP data.

Description

technical field [0001] The invention relates to data forwarding technology, in particular to a data forwarding system and method based on a distributed hash table mapping library for an identity identification and location separation protocol. Background technique [0002] With the development of science and technology, information has become a huge driving force for the development of society today, and information networks play a decisive role in the economic and social development of various countries. However, in the face of increasing service demands and technological innovations, the existing network has increasingly highlighted the problem of network scalability in terms of routing and address structure, for example: with the continuous increase of network users and the development of new network technologies The development will cause the scale of the routing table in the non-default routing zone (DFZ) to increase continuously, which greatly exceeds the speed that th...

AI Technical Summary

Problems solved by technology

This scheme is more efficient when there are few mapping relationships between EID and RLOC. However, when there are many mapping relationships or the host moves, the pressure on the parser will be very high, and the storage efficiency will drop sharply as the mapping relationship increases.

The LISP+ALT scheme proposes a distributed overlay layer, where the EID prefix is ​​propagated in the form of broadcast. The disadvantage of this scheme is that the scheme requires that EID must be allocated in a hierarchical manner that is convenient for aggregation, but When the host moves, the EID in the area cannot be guaranteed to be easily aggregated, so this solution cannot solve the host mobility problem

Images