IP communication network routing protocol message validity state signaling device
View Patent ↗A device for processing routing protocol messages for a router of an Internet protocol communication network comprises a processor that determines if routing information contained in a routing protocol message to be sent to at least one destination peer router has been checked at least once by at least one routing checking tool, and the result of each check. It adds to the routing protocol message status information representing at least the result of each check effected on the message, with a view to sending it to the destination peer router.
1. A device for processing routing protocol messages for a router of an Internet protocol communication network comprising:
at least one routing checking tool; and
processing means;
wherein the processing means determine if a validity of routing information contained in a routing protocol message to be sent to a destination peer router has been checked at least once by the at least one routing checking tool,
wherein the processing means determine a result of each validity check, and
wherein the processing means add to said routing protocol message status information representing at least the result of each validity check effected thereon and send said routing protocol message comprising said status information to said destination peer router.
2. The device according to claim 1 , wherein said status information represents each validity check carried out on the routing information contained in a routing protocol message to be sent and the associated result.
3. The device according to claim 2 , wherein said status information represents each tool used for each validity check applied to the routing information contained in a routing protocol message to be sent.
4. The device claimed in claim 3 wherein, in the event of checking results indicating conformance or non-conformance of the routing data contained in a routing protocol message to be transmitted, said processing means add thereto status information representing a certificate of conformance or of non-conformance of said routing information that the routing protocol message contains.
5. The device according to claim 3 , wherein said validity checks are selected from a group including a check of paths between autonomous systems, a traffic distribution policy check, and an autonomous system aggregation optimality check.
6. A router for an Internet protocol communication network, comprising a device according to claim 3 .
7. The device claimed in claim 2 wherein, in the event of checking results indicating conformance or non-conformance of the routing data contained in a routing protocol message to be transmitted, said processing means add thereto status information representing a certificate of conformance or of non-conformance of said routing information that the routing protocol message contains.
8. The device according to claim 2 , wherein said validity checks are selected from a group including a check of paths between autonomous systems, a traffic distribution policy check, and an autonomous system aggregation optimality check.
9. The device claimed in claim 2 wherein said processing means receive and generate said routing protocol messages.
10. The device according to claim 2 , wherein said processing means process routing protocol messages taking the form of routing information update messages.
11. The device according to claim 2 , wherein said routing protocol messages are of BGP type.
12. A router for an Internet protocol communication network, comprising a device according to claim 2 .
13. The device claimed in claim 1 wherein, in the event of checking results indicating conformance or non-conformance of the routing data contained in a routing protocol message to be transmitted, said processing means add thereto status information representing a certificate of conformance or of non-conformance of said routing information that the routing protocol message contains.
14. The device according to claim 13 , wherein said validity checks are selected from a group including a check of paths between autonomous systems, a traffic distribution policy check, and an autonomous system aggregation optimality check.
15. A router for an Internet protocol communication network, comprising a device according to claim 13 .
16. The device according to claim 1 , wherein said validity checks are selected from a group including a check of paths between autonomous systems, a traffic distribution policy check, and an autonomous system aggregation optimality check.
17. The device claimed in claim 1 , wherein said processing means receive and generate said routing protocol messages.
18. The device according to claim 1 , wherein said processing means process routing protocol messages taking the form of routing information update messages.
19. The device according to claim 1 , wherein said routing protocol messages are of BGP type.
20. A router for an Internet protocol communication network, comprising a device according to claim 1 .
21. The router according to claim 20 , comprising checking means connected to said device and including said routing checking tools.
22. The device claimed in claim 1 , wherein the routing protocol message is sent by the router to the destination peer router.