Title:
インタネットゲートウェイシステムでの迂回制御方法
Document Type and Number:
Japanese Patent JP3747740
Kind Code:
B2
Abstract:
To detect network faults or congestion of traffic at an interface of a gateway system for connecting an If network and a telephone network on the side of the IP network and to allow the IP network to control alternative routing at the telephone network, network faults and congestion of traffic on the side of the IP network are monitored by the gateway system having an interface function between the telephone network and the IP network. When a network fault or congestion of traffic is detected, the gateway system notifies the telephone network upstream thereof of the disabled line and instructs the same to perform alternative routing, which makes it possible to prevent the occurrence of a situation in which the quality of communication at the interface between the telephone network and IP network can not be maintained.
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Inventors:
Yoshinao Castle
Motoi Abe
Takaaki Higashi
Motoi Abe
Takaaki Higashi
Application Number:
JP2000154396A
Publication Date:
February 22, 2006
Filing Date:
May 22, 2000
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H04L12/66; H04L69/40; H04M3/00; H04M7/00
Domestic Patent References:
| JP11308345A |
Attorney, Agent or Firm:
Yasuo Sakuta