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Address allocation method, device and system

An allocation method and address technology, applied in the field of communication, can solve problems such as BRAS address conflicts

Active Publication Date: 2013-12-18
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention provides an address allocation method, device and system, which solves the problem of address conflict when BRAS allocates addresses for users

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  • Address allocation method, device and system
  • Address allocation method, device and system
  • Address allocation method, device and system

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Embodiment Construction

[0040] In order to solve the problem of address conflict when a pair of BRASs that are backup devices for each other allocate addresses to respective users in a dual hot backup scenario, an embodiment of the present invention provides an address allocation method.

[0041] First, the application scenarios of the embodiments of the present invention are introduced.

[0042] The application scenarios of the 1+1 dual-system hot backup working mode are as follows: figure 1 As shown, among them, CR (Core Router, core router) 101 device 1 is the core device of the metropolitan area network, CR101 is connected to BRAS102 and BRAS103, BRAS102 and BRAS103 are backup devices for each other, and the two BRASs implement dual-system hot backup function. A SW (switch) 104 is connected under the BRAS 102 and the BRAS 103, and the user accesses the BRAS through the switch.

[0043] In the application scenario of BRAS dual-system hot backup, users access the aggregation device through the acc...

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Abstract

An address distribution method is disclosed by the present invention, in which two Broadband Remote Access Servers (BRAS) which are mutually backup devices respectively occupy part of the address resources in a shared address pool, and the method includes: when detecting a user online, a BRAS selecting an address from the corresponding part of address resources in the shared address pool and distributing the address to the user; and the BRAS sending a notification message to the backup device, and informing the backup device of the address occupied by the user. A BRAS and an address distribution system is further disclosed by the present invention, and the problem of address collision generated when a pair of BRASs which are mutually backup devices distribute the addresses to their respective user in the dual-server hot backup scenario is solved by the method, device and system of the present invention.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to an address allocation method, device and system. Background technique [0002] The broadband metropolitan area network service control layer is a unique layer where the service access network connects to the core switching network. The device that plays an important role is the BRAS (Broadband Remote Access Server), which is mainly responsible for service access control. and user management functions. [0003] With the demand for high-quality services provided by the network, higher requirements are put forward for the performance and reliability of BRAS products at the service control layer. High-reliability networking, so the concept of BRAS dual-system hot backup came into being. By deploying two BRAS devices at the service control layer, it has the functions of active and standby redundancy and user information backup to ensure that in the event of device failures ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12H04L1/22
CPCH04L61/2076H04L61/2061H04L61/2007H04L61/5061H04L61/5076H04L61/5007
Inventor 冷通叶志宁毛薇朱承旭高露
Owner ZTE CORP
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