Method and device for sending route advertisement message
A technology for advertising messages and routing, applied in wireless communication, electrical components, etc., can solve the problems of obtaining IPV6 address prefixes to reduce network overhead, network congestion, message congestion, etc.
Active Publication Date: 2016-03-02
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0019] If the message sending cycle is too long, it will affect the efficiency of the terminal to obtain the address prefix, thereby affecting the customer's online access experience; if the message sending cycle is too short, it will greatly increase the network overhead and occupy the system's bandwidth resources. In some cases, it will even cause network congestion; at the same time, if the cycle is too short, a large number of messages will also cause congestion, increasing the processing burden of the operating system
[0020] However, the protocol does not stipulate the length of the routing advertisement sending cycle, and a fixed cycle cannot find a better balance between the terminal efficiently obtaining the IPV6 address prefix and reducing network overhead.
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[0041] The method and device for sending notification messages provided by the present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.
[0042] Among the five ICMP (InernalControlMessageProtocol, Internal Control Information Protocol) messages of the Neighbor Discovery Protocol in IPv6, only one Router Advertisement message is required to be sent periodically, but the protocol does not specifically require the period of sending this message. The period is a constant value. If the period is too long, the efficiency of the system to propagate the IPv6 address header will be low. If the period is too short, a lot of bandwidth resources will be wasted and the transmission efficiency will be affected. During the test, it was found that the time point when the routing advertisement message plays a key role in the system, this time point is within tens of seconds after the terminal is attached or after the routing request...
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The invention discloses a router advertisement information sending method and device. The router advertisement information sending method comprises the following steps of: when a terminal is determined to be adhered to a network, periodically and actively sending router advertisement information to the terminal within a set time length, and after the set time length is end, stopping actively sending the router advertisement information to the terminal; and when the router advertisement information sent by the terminal is received, sending the router advertisement information for set times to the terminal. With the adoption of the router advertisement information sending method and device provided by the invention, not only can the system wideband waste and the system resource consumption be effectively reduced, but also the efficiency that the terminal receives the router advertisement information so as to obtain an address prefix by can be improved.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for sending a routing notification message. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) network, the core network must assign an address prefix of the IPv6 (version6, sixth version of IP) protocol type to the terminal after each attachment. (RouterAdvertisement, RA) sent out. The terminal stores the IPv6 address prefix of the protocol type by receiving the routing notification message, and then constructs the last 64-bit complete address according to the MAC (MediaAccessControl, Media Access Control) address of its own hardware. The terminal that successfully obtains the complete address can conduct network access and a series of communications through the permission of the network. [0003] There are two scenarios for triggering the sending of route notification messages: [0004] 1) The PGW (P...
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IPC IPC(8): H04W68/00
Inventor 张帆裴玉
Owner DATANG MOBILE COMM EQUIP CO LTD