System and method for effecting recovery of a network

• US 20020184571A1
• Filed: 06/01/2001
• Published: 12/05/2002
• Est. Priority Date: 06/01/2001
• Status: Active Grant

• Current Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Johnson, Keith W., Dean, Ronnie Elbert
• Granted Patent: US 6,954,884 B2
• Time in Patent Office: Days
• US Class Current: 714/43
• CPC Class Codes: H04L 41/0654 using network fault recovery ring fault isolation or reconfiguration in loop networks without recovery actions by a network management system H04L12/437
• 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 system for effecting recovery of a network involving a plurality of computing apparatuses with each respective computing apparatus hosting at least one respective service, includes: (a) at least one control unit substantially embodied in hardware and coupled with each computing apparatus; and (b) at least one control program substantially embodied in software and distributed among at least one of the computing apparatuses. The system responds to a computing apparatus becoming inoperative by effecting a recovery operation. The recovery operation includes distributing the services hosted by the inoperative computing apparatus as distributed services among operating computing apparatuses and returning the distributed services to the inoperative computing apparatus after the inoperative computing apparatus becomes operative. The at least one control unit and the at least one control program cooperate to effect the recovery operation.

Claims

1. A system for controlling operation of a plurality of computing apparatuses in a network;

each respective computing apparatus of said plurality of computing apparatuses hosting at least one respective service;

the system responding to any said respective computing apparatus being inoperative by effecting a continuity operation;

said continuity operation including distributing said at least one service hosted by said inoperative computing apparatus among operating said respective computing apparatuses in said network;

the system comprising;

(a) at least one control unit;

said at least one control unit being substantially embodied in hardware;

said at least one control unit being coupled with each said respective computing apparatus in said network; and

(b) at least one control program;

each respective control program of said at least one control program being substantially embodied in software;

said at least one control program being distributed among at least one of said respective computing apparatuses in said network;

one of said at least one control unit and said at least one control program effecting said continuity operation when a respective said computing apparatus becomes an inoperative computing apparatus.

2. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 1 wherein said at least one control unit effects said continuity operation when a respective said computing apparatus becomes an inoperative computing apparatus;

said at least one control program backing up said at least one control unit;

said at least one control program effecting said continuity operation when said at least one control unit cannot effect said continuity operation.

3. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 1 wherein said at least one control unit is one control unit;

said one control unit being a substantially autonomous computing unit in communication with said plurality of computing apparatuses;

said control unit effecting said continuity operation when a respective said computing apparatus becomes an inoperative computing apparatus;

said at least one control program backing up said control unit;

said at least one control program effecting said continuity operation when said control unit cannot effect said continuity operation.

4. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 2 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

5. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 3 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

6. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 1 wherein one of said at least one control unit and said at least one control program effects a recovery operation when said inoperative computing apparatus becomes an operative computing apparatus;

said recovery operation effecting returning said at least one control program to the respective computing apparatus from which it was distributed when effecting said continuity operation.

7. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 6 wherein said at least one control unit effects said recovery operation when said in operative computing apparatus becomes an operative computing apparatus;

said at least one control program backing up said at least one control unit;

said at least one control program effecting said recovery operation when said at least one control unit cannot effect said recovery operation.

8. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 6 wherein said at least one control unit is one control unit;

said one control unit being a substantially autonomous computing unit in communication with said plurality of computing apparatuses;

said control unit effecting said recovery operation when said inoperative computing apparatus becomes an operative computing apparatus;

said at least one control program backing up said control unit;

said at least one control program effecting said recovery operation when said control unit cannot effect said recovery operation.

9. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 7 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

10. A system for controlling operation of a plurality of computing apparatuses in a network as recited in claim 8 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

11. A system for effecting recovery of a network;

said network including a plurality of computing apparatuses;

each respective computing apparatus of said plurality of computing apparatuses hosting at least one respective service;

the system comprising;

(a) at least one control unit;

said at least one control unit being substantially embodied in hardware;

said at least one control unit being coupled with each said respective computing apparatus; and

(b) at least one control program;

each respective control program of said at least one control program being substantially embodied in software;

said at least one control program being distributed among at least one of said respective computing apparatuses;

the system responding to a respective said computing apparatus becoming an inoperative computing apparatus by effecting a recovery operation;

said recovery operation including distributing said at least one service hosted by said inoperative computing apparatus as at least one distributed service among operating said respective computing apparatuses and returning said at least one distributed service to said inoperative computing apparatus after said inoperative computing apparatus becomes operative;

said at least one control unit and said at least one control program cooperating to effect said recovery operation.

12. A system for effecting recovery of a network as recited in claim 11 wherein said cooperating is effected by said at least one control unit effecting said recovery operation;

said at least one control program backing up said at least one control unit;

said at least one control program effecting said recovery operation when said at least one control unit cannot effect said recovery operation.

13. A system for effecting recovery of a network as recited in claim 11 wherein said at least one control unit is one control unit;

said one control unit being a substantially autonomous computing unit in communication with said plurality of computing apparatuses;

said cooperating being effected by said one control unit effecting said recovery operation;

said at least one control program backing up said one control unit;

said at least one control program effecting said recovery operation when said one control unit cannot effect said recovery operation

14. A system for effecting recovery of a network as recited in claim 12 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

15. A system for effecting recovery of a network as recited in claim 13 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

17. A method for effecting recovery of a network as recited in claim 16 wherein said cooperating is effected by said at least one control unit effecting said recovery operation;

said at least one control program backing up said at least one control unit;

said at least one control program effecting said recovery operation when said at least one control unit cannot effect said recovery operation.

18. A method for effecting recovery of a network as recited in claim 16 wherein said at least one control unit is one control unit;

said one control unit being a substantially autonomous computing unit in communication with said plurality of computing apparatuses;

said cooperating being effected by said one control unit effecting said recovery operation;

said at least one control program backing up said one control unit;

said at least one control program effecting said recovery operation when said one control unit cannot effect said recovery operation

19. A method for effecting recovery of a network as recited in claim 17 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

20. A system for effecting recovery of a network as recited in claim 18 wherein said at least one control program is a plurality of control programs;

each said respective computing apparatus hosting at least one respective control program of said plurality of control programs.

16. A method for effecting recovery of a network;

said network including a plurality of computing apparatuses;

each respective computing apparatus of said plurality of computing apparatuses hosting at least one respective service;

the method comprising the steps of;

(a) in no particular order;

(1) providing at least one control unit;

said at least one control unit being substantially embodied in hardware;

said at least one control unit being coupled with each said respective computing apparatus; and

(2) providing at least one control program;

each respective control program of said at least one control program being substantially embodied in software;

said at least one control program being distributed among at least one of said respective computing apparatuses;

(b) operating the system to respond to a respective said computing apparatus becoming an inoperative computing apparatus by effecting a recovery operation;

said recovery operation including the steps of;

(1) distributing said at least one service hosted by said inoperative computing apparatus as at least one distributed service among operating said respective computing apparatuses; and

(2) after said inoperative computing apparatus becomes operative, returning said at least one distributed service to said previously inoperative computing apparatus;

said at least one control unit and said at least one control program cooperating to effect said recovery operation.