Patent
Network segmentation method
| العنوان: | Network segmentation method |
|---|---|
| Patent Number: | 7,724,685 |
| تاريخ النشر: | May 25, 2010 |
| Appl. No: | 11/870647 |
| Application Filed: | October 11, 2007 |
| مستخلص: | A method includes obtaining first information indicative of instability of a data communication network. The method also includes isolating a first portion of a network from a second portion of the network responsive to the obtained first information. After a predetermined period of time, second information indicative of instability of the first portion is obtained. The method further includes isolating a first segment of the first portion from a second segment of the first portion responsive to the obtained second information. |
| Inventors: | Choudhury, Gagan Lal (Marlboro, NJ, US); Francis, Elie M. (Brooklyn, NY, US); Helstern, Thomas K. (Little Silver, NJ, US); Munson, Beth S. (Little Silver, NJ, US); Sapozhnikova, Vera D. (Lincroft, NJ, US) |
| Assignees: | AT&T Corp. (New York, NY, US) |
| Claim: | 1. A method, comprising: obtaining first information indicative of instability of a network; isolating a first portion of the network from a second portion of the network responsive to the obtained first information, wherein the network includes a plurality of nodes connected by trunks, and said isolating comprises disabling one or more trunks that provide connectivity between a plurality of nodes of the first portion and a plurality of nodes of the second portion; obtaining second information after at least a first predetermined period of time after isolating the first portion from the second portion, the second information indicative of instability of the first portion; and isolating a first segment of the first portion from a second segment of the first portion responsive to the obtained second information. |
| Claim: | 2. The method of claim 1 , further comprising: obtaining third information after at least a second predetermined period of time after isolating the first portion from the second portion, the third information indicative of instability of the second portion; and isolating a first segment of the second portion from a second segment of the first portion responsive to the obtained third information. |
| Claim: | 3. The method of claim 1 , further comprising dividing the plurality of nodes by selecting a division from a plurality of proposed divisions of the plurality of nodes. |
| Claim: | 4. The method of claim 1 , further comprising reconnecting the first portion to the second portion upon receiving third information indicative of stability of the first portion and the second portion. |
| Claim: | 5. The method of claim 4 , wherein reconnecting the first portion to the second portion further comprises initially connecting a single trunk that extends between the first portion and the second portion, and waiting a third predetermined period before connecting additional trunks that extend between the first portion and the second portion. |
| Claim: | 6. A method, comprising: obtaining first information indicative of instability of a network; isolating a first portion of the network from a second portion of the network responsive to the obtained first information, wherein the network includes a plurality of nodes connected by trunks, and said isolating comprises disabling one or more trunks that provide connectivity between a plurality of nodes of the first portion and a plurality of nodes of the second portion; obtaining second information after at least a first predetermined period of time after isolating the first portion from the second portion, the second information indicative of stability of the first portion and the second portion; and reconnecting the first portion to the second portion of the network. |
| Claim: | 7. The method of claim 6 , wherein the first information includes information indicative of a measure of a level of usage of a processor of one or more nodes on the network. |
| Claim: | 8. The method of claim 6 , wherein the first information includes information indicative of a measure of a level of usage of a memory of one or more nodes on the network. |
| Claim: | 9. The method of claim 6 , wherein reconnecting the first portion to the second portion further comprises initially connecting a single trunk that extends between the first portion and the second portion, and waiting a predetermined period before connecting additional trunks that extend between the first portion and the second portion. |
| Claim: | 10. A system, comprising: means for obtaining first information indicative of instability of a network; means for isolating a first portion of the network from a second portion of the network responsive to the obtained first information, wherein the network includes a plurality of nodes connected by trunks, and said means for isolating disables one or more trunks that provide connectivity between a plurality of nodes of the first portion and a plurality of nodes of the second portion; means for obtaining second information after at least a first predetermined period of time after isolating the first portion from the second portion, the second information indicative of instability of the first portion; and means for isolating a first segment of the first portion from a second segment of the first portion responsive to the obtained second information. |
| Claim: | 11. The system of claim 10 , further comprising: means for obtaining third information after at least a second predetermined period of time after isolating the first portion from the second portion, the third information indicative of instability of the second portion; and means for isolating a first segment of the second portion from a second segment of the first portion responsive to the obtained third information. |
| Claim: | 12. The system of claim 10 , wherein the network includes a plurality of nodes and further comprising means for dividing the plurality of nodes into a first set of nodes included within the first portion and a second set of nodes included within the second portion. |
| Claim: | 13. The system of claim 12 , further comprising: means for dividing the plurality of nodes by selecting a division from a plurality of proposed divisions of the plurality of nodes. |
| Claim: | 14. The system of claim 10 , further comprising: means for reconnecting the first portion to the second portion upon receiving third information indicative of stability of the first portion and the second portion. |
| Claim: | 15. The system of claim 14 , wherein reconnecting the first portion to the second portion comprises initially connecting a single trunk that extends between the first portion and the second portion, and waiting a third predetermined period before connecting additional trunks that extend between the first portion and the second portion. |
| Current U.S. Class: | 370/252 |
| Patent References Cited: | 5964837 October 1999 Chao et al. 6175552 January 2001 Parry et al. 6272139 August 2001 Soncodi 6347384 February 2002 Satomi et al. 6597689 July 2003 Chiu et al. 6625114 September 2003 Hassell 6775235 August 2004 Datta et al. 6816584 November 2004 Armstrong et al. 7039046 May 2006 Simons et al. 7061857 June 2006 Norrell et al. 7093027 August 2006 Shabtay et al. 7283484 October 2007 Choudhury et al. 2002/0085499 July 2002 Toyoyama et al. |
| Primary Examiner: | Tran, Phuc |
| رقم الانضمام: | edspgr.07724685 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |