Internet protocol (IP) network device, network system, method thereof

• US 9,124,491 B2
• Filed: 05/22/2013
• Issued: 09/01/2015
• Est. Priority Date: 05/30/2012
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Kondo, Takayuki
• Primary Examiner(s): Chea, Philip
• Assistant Examiner(s): Coxson, Gregory E
• Application Number:
  US13/899,908
• Publication Number:
  US 20130326057A1
• Time in Patent Office: 832 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 41/0686 Additional information in the notification, e.g. enhancement of specific meta-data
• CPC Class Codes: H04L 41/069 using logs of notifications; Post-processing of notifications
• CPC Class Codes: H04L 41/0695 the faulty arrangement being the maintenance, administration or management system

Abstract

An internet protocol (IP) network device is provided including a detector adapted to detect an event in the internet protocol (IP) network device. The network device also includes a generator adapted to generate a trap message including event information having information about the detected event. The network device also includes a transmitter adapted to transmit, to an internet protocol (IP) network management device, the trap message including the event information and a first sequence indicator. The network device also includes a timer adapted to measure a time period from a time at which the transmitter transmits the trap information. If the measured time period is equal to or longer than a predetermined time, the generator generates an empty trap message and the transmitter transmits, to the network management device, the empty trap message and a second sequence indicator.

Claims

1. An internet protocol (IP) network device, comprising:

a detector adapted to detect an event in the internet protocol (IP) network device;

a generator adapted to generate a trap message comprising event information having information about the detected event;

a transmitter adapted to transmit, to an internet protocol (IP) network management device, the trap message comprising the event information and a first sequence indicator; and

a timer adapted to measure a time period from a time at which the transmitter transmits the trap information;

wherein if the measured time period is equal to or longer than a predetermined time, the generator generates an empty trap message, and

the transmitter transmits, to the internet protocol (IP) network management device, the empty trap message and a second sequence indicator.

2. The internet protocol (IP) network device according to claim 1, wherein the empty trap message does not include information about the event.

3. The internet protocol (IP) network device according to claim 1, wherein the first sequence indicator and the second sequence indicator are elements of a sequence and the first sequence indicator immediately precedes the second sequence indicator in the sequence.

4. The internet protocol (IP) network device according to claim 1, the first sequence indicator and the second sequence indicator are numeric characters.

5. A network system comprising:

an internet protocol (IP) network device; and

an internet protocol (IP) network management device;

wherein the internet protocol (IP) network device comprises;

a detector adapted to detect an event in the network device;

a generator adapted to generate a trap message comprising event information having information about the detected event;

a transmitter adapted to transmit, to the internet protocol (IP) network management device, the trap message comprising the event information and a first sequence indicator; and

a timer adapted to measure a time period from a time at which the transmitter transmits the trap information;

wherein if the measured time period is equal to or longer than a predetermined time, the generator generates an empty trap message, and

the transmitter transmits, to the internet protocol (IP) network management device, the empty trap message and a second sequence indicator,

wherein the internet protocol (IP) network management device comprises;

a receiver adapted to receive, from the internet protocol (IP) network device, the trap message, the empty trap message, the first sequence indicator and the second sequence indicator.

6. The system according to claim 5, wherein the internet protocol (IP) network management device further comprises:

a controller adapted to detect a lost trap based on continuity of the first sequence indicator and the second sequence indicator.

7. The system according to claim 6, wherein the internet protocol (IP) network management device further comprises:

a transmitter adapted to transmit a retransmission request for information about the lost trap.

8. A method of an internet protocol (IP) network device, the method comprising:

detecting an event in the internet protocol (IP) network device;

generating a trap message comprising event information having information about the detected event;

transmitting, to an internet protocol (IP) network management device, the trap message comprising the event information and a first sequence indicator;

measuring a time period from a time at which the transmitter transmits the trap information;

generating an empty trap message if the measured time period is equal to or longer than a predetermined time; and

transmitting, to the internet protocol (IP) network management device, the generated empty trap message and a second sequence indicator.

9. A method of a network system, the method comprising:

detecting an event in the internet protocol (IP) network device;

generating a trap message comprising event information having information about the detected event;

transmitting, to an internet protocol (IP) network management device, the trap message comprising the event information and a first sequence indicator;

receiving, from the internet protocol (IP) network device, the trap message and the first sequence indicator;

measuring a time period from a time at which the transmitter transmits the trap information;

generating an empty trap message if the measured time period is equal to or longer than a predetermined time;

transmitting, to the internet protocol (IP) network management device, the generated empty trap message and a second sequence indicator; and

receiving, from the internet protocol (IP) network device, the trap message and the first sequence indicator, the empty trap message and the second sequence indicator.