Method for realizing addressing pool share between multiple IP-DSLM

Abstract

The method includes following steps: a virtual LAN is set for intercommunication between IP-DSLAM, and an address pool is set at a part of IP-DSSAM for connecting users; when IP-DSLAM starts up, first it is decided if there is an available address pool for using by users, if not, then a request for applying address field is transmitted to the IP-DSLAM with the address pool; the IP-DSLAM with the address pool decides if the allocation is available, if yes, then a permit message is transmitted, and the address field needed by request IP-DSLAM is allocated for using as local address pool by the request IP-DSLAM; if not, then a refusing message is transmitted, the IP-DSLAM continually transmits the request to the other IP-DSLAM; if there is an address pool, then the declaration message is transmitted to other IP-DSLAM, IP address is allocated to the local users; if the connected users continually increase to the a certain amount that will exceed the volume of the address pool, the addresses will be distributed and the request is transmitted to the IP-DSLAM with address pool; if the connected users in IP-DSLAM decrease, the unused address will be released.

Description

technical field [0001] The invention relates to a method for address pool sharing, in particular to a method for realizing address pool sharing between multiple IP-DSLAMs. Background technique [0002] With the development of network technology, broadband access has become a dominant user access mode at present. Broadband access generally includes methods such as ADSL, VDSL, and Ethernet. According to the operation needs of operators, all these methods require the process of broadband dial-up and authentication. After the authentication phase is completed, IP address allocation is usually required, the purpose is to assign an IP to the client so that the end user can communicate. At present, most IP-DSLAM (Digital Subscriber Line Access Multiplexer) have integrated basic authentication (such as 802.1x authentication, PPPoE authentication and termination) and IP address allocation and management functions into the DSLAM equipment. In this way, the upper-level equipment can ...

AI Technical Summary

Problems solved by technology

[0004] At present, IP-DSLAM assigns IP through the DHCP protocol, which has the following defects: (1) addresses cannot be shared, resulting in waste; (2) address pools are scattered and not easy to manage

However, in some cases, it may cause performance problems, for example: if only one device in a group can act as a server, the rest of the devices can only be used as ordinary clients; in this way, each client must frequently send address requests to the server and address release messages; when the number of users is large, address application may be slow

[0006] Each client will continue to apply for an address from the server as the user's online request increases; this process is frequent and long-term, which will cause the client and server to always have address application or release message interaction; when the user goes online frequently , it will increase the burden on the server, resulting in a direct drop in its processing capability, resulting in reduced bandwidth

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