Load distribution type network fault monitoring system and method of broadband router

• US 20050099956A1
• Filed: 07/08/2004
• Published: 05/12/2005
• Est. Priority Date: 07/11/2003
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Mangetsu, Kenji
• Application Number:
  US10/888,263
• Publication Number:
  US 20050099956A1
• Time in Patent Office: Days
• US Class Current: 370/242
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/2859 Point-to-point connection between the data network and the subscribers encapsulation H04L12/4633; virtual LANs H04L12/4641; routing of packets H04L45/00
• CPC Class Codes: H04L 41/06 Management of faults, events, alarms or notifications
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/28 using route fault recovery
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/10015 Access to distributed or replicated servers, e.g. using brokers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer

Abstract

The present invention is a load distribution type network fault monitoring system of a broadband router, which is connected to a plurality of client terminals and which has a function of accessing the Internet, the load distribution type network fault monitoring system comprising: a fault monitoring section in the broadband router for monitoring and recording a connection situation between the client terminals and the broadband router, and an abnormality in data communication contents; and a network monitoring machine connected to the Internet to receive collectively the connection situation and the abnormality in data communication contents monitored by the fault monitoring section, at regular intervals, sum up the received data, and ascertain a network state.

Claims

1. A load distribution type network fault monitoring system of a broadband router, which is connected to a plurality of client terminals and which has a function of accessing the Internet, the load distribution type network fault monitoring system comprising:

a fault monitoring section in the broadband router for monitoring and recording a connection situation between the client terminals and the broadband router, and an abnormality in data communication contents; and

a network monitoring machine connected to the Internet to receive collectively the connection situation and the abnormality in data communication contents monitored by the fault monitoring section, at regular intervals, sum up the received data, and ascertain a network state.

2. The load distribution type network fault monitoring system of the broadband router according to claim 1, wherein

the fault monitoring section monitors a physical line error between the broadband router and an office side line accommodation apparatus connected to the broadband router, and a PPP session state between the broadband router and a BAS (Broadband Access Server) which is connected between the office side line accommodation apparatus and the Internet, and records the monitored line error and PPP session state, and

the network monitoring machine receives the physical line error and the PPP session state monitored by the fault monitoring section, collectively at regular intervals, sums up the received data, and ascertains the network state.

3. The load distribution type network fault monitoring system of the broadband router according to claim 2, wherein

if the physical line error is a physical line disconnection, then the fault monitoring section records a line disconnection situation and a PPP session state, and

after the line restoration has been detected, the fault monitoring section transmits the recorded line disconnection situation PPP session state.

4. The load distribution type network fault monitoring system of the broadband router according to claim 1, wherein

a plurality of network monitoring machines are provided on the Internet, and

a network monitoring machine serving as transmission destination of the monitored connection situation and abnormality in data communication contents, or the monitored physical line error and PPP session state is set for each of the fault monitoring sections in the broadband routers.

5. The load distribution type network fault monitoring system of the broadband router according to claim 1, wherein

the broadband router comprises an HTTP/mirror server section in which the HTTP is installed,

the HTTP/mirror server section has a mirror server function for the network monitoring machine, and

the HTTP/mirror server section downloads mirrored contents from the network monitoring machine, sums up data transmitted in access from the client terminals, and transmits the summed up data collectively to the network monitoring machine at regular intervals.

6. The load distribution type network fault monitoring system of the broadband router according to claim 1, wherein

the broadband router comprises an SMTP/mirror server section in which the SMTP is installed,

the SMTP/mirror server section has a mirror server function for the network monitoring machine, and

the SMTP/mirror server section downloads mirrored contents from the network monitoring machine, sums up data transmitted in access from the client terminals, and transmits the summed up data collectively to the network monitoring machine at regular intervals.

7. A load distribution type network fault monitoring method of a broadband router, which is connected to a plurality of client terminals and which has a function of accessing the Internet, the load distribution type network fault monitoring method comprising the steps of:

monitoring and recording a connection situation between the client terminals and the broadband router, and an abnormality in data communication contents; and

receiving collectively the monitored connection situation and abnormality in data communication contents, via the Internet at regular intervals, summing up the received data, and ascertaining a network state.

8. The load distribution type network fault monitoring method of the broadband router according to claim 7, wherein

monitoring a physical line error between the broadband router and an office side line accommodation apparatus connected to the broadband router, and a PPP session state between the broadband router and a BAS (Broadband Access Server) which is connected between the office side line accommodation apparatus and the Internet, and recording the monitored line error and PPP session state, and

receiving the physical line error and the PPP session state monitored at the fault monitoring step, collectively at regular intervals, summing up the received data, and ascertaining the network state.

9. The load distribution type network fault monitoring method of the broadband router according to claim 8, wherein

recording a line disconnection situation and a PPP session state, if the physical line error is a physical line disconnection, and

transmitting the recorded line disconnection situation PPP session state, after the line restoration has been detected.

10. The load distribution type network fault monitoring method of the broadband router according to claim 7, wherein

monitoring connection situation and abnormality in data communication contents, or the monitoring physical line error and PPP session state, for each of the broadband routers.

11. The load distribution type network fault monitoring method of the broadband router according to claim 7, wherein

downloading mirrored contents at the network monitoring step, summing up data transmitted in access from the client terminals, and transmitting the summed up data collectively via the Internet at regular intervals by the HTTP/mirror server function.

12. The load distribution type network fault monitoring method of the broadband router according to claim 7, wherein

downloading mirrored contents at the network monitoring step, summing up data transmitted in access from the client terminals, and transmitting the summed up data collectively via the Internet at regular intervals by the SMTP/mirror server function.