Method and apparatus for customizable surveillance of network interfaces

• US 7,339,885 B2
• Filed: 06/05/2003
• Issued: 03/04/2008
• Est. Priority Date: 06/05/2003
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Callaghan, Patrick J., Feustel, Stephen V., Ahrens, George Henry Jr., Overton, Robert Keith, Planutis, Richard Jeffrey, Seid, Alan David
• Primary Examiner(s): Nguyen; Chau
• Assistant Examiner(s): Kang; Suk Jin
• Application Number:
  US10/455,162
• Publication Number:
  US 20040246893A1
• Time in Patent Office: 1,734 Days
• Field of Search: 370/216
• US Class Current: 370/216
• CPC Class Codes: H04L 43/0811 by checking connectivity
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06

Abstract

A method in a data processing system for monitoring for errors on a network. Responsive to detecting a change in a state of the network, determine whether the change in state is a loss of a communications link to a remote data processing system. If the change in state is a loss of the communications link, determine whether the communications link was established for at least a first period of time to be considered an acceptable connection to the remote data processing system; and create a new serviceable event, if a second period of time passes without reestablishing the communications link to the selected data processing system. Repeat occurrences of identical outages are tracked and multiple detected instances of an outage for different partitions are counted as a single failure in the examples.

Claims

1. A method in a data processing system for monitoring for errors on a network, the method comprising:

responsive to detecting a change in a state of the network, determining whether the change in state is one of (i) a loss of a communications link to a remote data processing system and (ii) a re-establishment of the communication link to the remote data processing system;

if the change in state is the re-establishment of the communications link, starting a connection timer, wherein the connection timer is used to filter out short term establishment of the communications link;

if the change in state is the loss of the communications link, determining whether the communications link was established for at least a first period of time to be considered an acceptable connection to the remote data processing system, wherein the acceptable connection is present upon expiration of the connection timer that was started in response to the change in the state of the network being the re-establishment of the communication link; and

creating a new serviceable event, if a second period of time passes without reestablishing the communications link to the remote data processing system.

2. The method of claim 1 further comprising:

maintaining a duplicate counter that counts multiple duplicative state changes that occur within a third period of time.

3. The method of claim 1, further comprising:

determining whether a prior serviceable event was created within a third period of time if the second period of time passes without reestablishing the communications link to a selected data processing system, wherein the new serviceable event is created if the prior serviceable event was not created within the third period of time.

4. The method of claim 1 further comprising:

sending a notification of the new serviceable event to an administrator.

6. The method of claim 1, wherein the remote data processing system is a logical partitioned data processing system having a plurality of logical partitions with each of the plurality of logical partitions (i) having at least one physical processor assigned thereto, and (ii) executing its own operation system which is a different instance from other operating systems executing on other of the plurality of logical partitions, and wherein the communications link is established by a partition in the logical partitioned data processing system.

7. The method of claim 1, wherein the first period of time and the second period of time are set by a user.

8. The method of claim 1, wherein the method is disabled when a partition is not active.

9. The method of claim 1, further comprising:

creating the new serviceable event if a communications link is not established to the remote data processing system within a selected period of time.

5. A method in a data processing system for monitoring for errors on a network, the method comprising:

responsive to detecting a change in a state of the network, determining whether the change in state is a loss of a communications link to a remote data processing system;

if the change in state is a loss of the communications link, determining whether the communications link was established for at least a first period of time to be considered an acceptable connection to the remote data processing system;

creating a new serviceable event, if a second period of time passes without reestablishing the communications link to the remote data processing system;

determining whether a prior serviceable event was created within a third period of time if the second period of time passes without reestablishing the communications link to the selected data processing system; and

if a prior serviceable event was created within a third period of time, adding an indication of a new outage to the prior serviceable event instead of creating the new serviceable event.