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Band ensuring system, interrupt device and network management server

A network management and server technology, applied in the field of frequency band guarantee system, can solve the problem of no frequency band guarantee system and so on

Inactive Publication Date: 2003-04-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, conventionally, there is only a band guarantee system for unicast communication, but no band guarantee system for multicast communication.

Method used

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  • Band ensuring system, interrupt device and network management server
  • Band ensuring system, interrupt device and network management server
  • Band ensuring system, interrupt device and network management server

Examples

Experimental program
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Embodiment Construction

[0109] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0110] FIG. 1 is a block diagram of a frequency band guarantee system according to an embodiment of the present invention. As shown in FIG. 1 , this bandwidth guarantee system 100 includes routers 1 , 2 a , 2 b , 3 a to 3 f , and a network management server 5 .

[0111] The network management server 5 is connected to a router 1 and a WAN (Wide Area Network; Wide Area Network) 7 . Router 1 is connected to WAN7 and shared networks NW1 and NW2.

[0112] The public network NW1 is connected to the router 2a. Router 2a is connected to routers 3a, 3b, 3c.

[0113] The router 3a is connected to the user terminal 4a, the router 3b is connected to the user terminal 4b, and the router 3c is connected to the user terminal 4c. That is, the shared network NW1 is a network commonly used by the user terminals 4a to 4c.

[0114] The public network NW2 is connected to the ...

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Abstract

Multicast packets are provided to a multicast queue and packets besides multicast packets are provided to queues, each of which is provided accordingly to each user terminal. The transmittable band of a queue corresponding to a user terminal that uses multicast is reduced in accordance with the amount of multicast traffic and the number of group members, of each multicast group, and thereby handled as if the queue had consumed part of said guaranteed band.

Description

technical field [0001] The present invention relates to a frequency band guarantee system for guaranteeing a usable frequency band for a user terminal or a relay device using a shared network and its related technology. Background technique [0002] In general, a plurality of user terminals may not be able to obtain resources (frequency bands) necessary for communication due to network congestion in order to share a line in a best effort manner. [0003] Therefore, communication quality assurance (QoS: Quality of Service) technology for securing communication resources (frequency bands) is attracting attention. [0004] As this QoS technology, conventionally, in a shared network, there is a bandwidth guarantee system that realizes bandwidth guarantee for unicast communication. [0005] On the other hand, conventionally, multicast communication has also been used on the Internet because of its high bandwidth utilization efficiency. [0006] In multicast communication, one m...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L12/18H04L47/724H04L47/76
CPCH04L12/1881H04L41/0896H04L47/822H04L47/2441H04L12/1877H04L12/5695H04L47/806H04L12/5693H04L47/525H04L47/15H04L47/6215H04L45/16H04L47/50H04L47/70H04L12/28
Inventor 松冈诚岛津干夫熊泽雅之志水郁二后藤博喜酒井章
Owner PANASONIC CORP