System and method for handling communications requests

• US 9,602,265 B2
• Filed: 09/09/2013
• Issued: 03/21/2017
• Est. Priority Date: 08/22/2006
• Status: Active Grant

• Current Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Original Assignee: CenturyLink Intellectual Property LLC (Lumen Technologies, Inc.)
• Inventors: McNaughton, James L., Heinz, John M., Bugenhagen, Michael K.
• Primary Examiner(s): Thier, Michael
• Assistant Examiner(s): MENSAH, PRINCE AKWASI
• Application Number:
  US14/021,964
• Publication Number:
  US 20140050106A1
• Time in Patent Office: 1,289 Days
• Field of Search: 370/224, 370/229, 370/235, 370/242, 370/243, 370/248, 370/252, 370/255, 370/355, 370/349, 370/390, 370/392, 370/395.2, 370/395.21, 370/395.43, 370/400, 370/401, 370/471, 709/224, 709/223, 709/235
• US Class Current: 1/1
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority

Abstract

A system and method for handling communications requests. Network performance information of a communications network is gathered using PIP data packets to determine a status of a number of nodes of the communications network. Available bandwidth through connections of the communications network are determined based on the PIP data packets. The available bandwidth for a number of customers is allocated for new connections and utilized bandwidth through the connections as the utilized bandwidth changes across the communications network.

Claims

1. A method for handling communications requests, the method comprising:

gathering network performance information of a communications network using performance information packet (PIP) data packets to determine a status of a plurality of nodes of the communications network, wherein the PIP data packets include performance information generated by at least some of the plurality of nodes along one or more paths through the communications network, including at least two adjacent nodes along a particular path, and wherein the PIP data packets establish windows of time in which each node collects performance information;

determining available bandwidth through connections of the communications network based on the PIP data packets;

adjusting a frequency of generation of the PIP data packets sent through a portion of the communications network and increasing a level of network performance information collected by each of the PIP data packets to collect more types of data with the PIP data packets, in response to determining that the portion of the communications network is experiencing a problem;

and allocating the available bandwidth for a plurality of customers for new connections and utilized bandwidth through the connections in response to changes in the available bandwidth and the utilized bandwidth across the communications network.

2. The method according to claim 1, wherein the allocating further comprises:

changing the available bandwidth for the plurality of customers utilizing oversubscription rules for the plurality of customers.

3. The method according to claim 1, further comprising:

determining whether to allow one of the plurality of customers to add one of the new connections in response to the available bandwidth.

4. The method according to claim 3, wherein the one of the new connections is allowed in response to determining that the quality of service guarantees will continue to be met for the plurality of customers once the one of the new connections is allowed.

5. The method according to claim 1, wherein one or more connection admission control engines are utilized to performing the method of claim 1.

6. The method according to claim 1, further comprising:

implementing one or more corrective actions for the connections of the plurality of customers utilizing one or more threshold triggers.

7. The method according to claim 6, wherein the threshold triggers are specified for total packet rate, real-time packet rate, non real-time packet rate, and average packet rate, packet count, packet delay, packet loss, total bandwidth, effective packet rate, jitter, latency, out-of-order packets, quality of service, and carrier identification.

8. The method according to claim 1, further comprising:

storing historical network performance information for the plurality of customers; and

performing the allocating based on the historical network performance information for each of the plurality of customers.

9. The method according to claim 1, wherein the allocating is performed utilizing service level agreements and quality of service agreements with the plurality of customers.

10. The method according to claim 1, wherein the allocation further comprises:

shifting the utilized bandwidth through the plurality of nodes.

21. The method according to claim 1, wherein at least one of the PIP data packets is communicated from one endpoint of a path through the network to another endpoint of the path through the communications network as a single flow that has performance data from nodes along the path, other than the two endpoints and including the at least two adjacent nodes, concatenated to the at least one PIP data packet as it travels along the path.

11. An access node for handling network communications, the access node comprising:

a receiver configured to receive performance information packet (PIP) data packets through connections of a communications network, wherein the PIP data packets include performance information generated by at least some of a plurality of nodes along one or more paths through the communications network, including at least two adjacent nodes along a particular path, and wherein the PIP data packets establish windows of time in which each node collects performance information;

a CAC engine configured to gather network performance information of the communications network using the PIP data packets to determine a status of the plurality of nodes including the access node of the communications network, determine available bandwidth through the connections of the communications network based on the PIP data packets, allocate the available bandwidth for a plurality of customers for new connections and utilized bandwidth through the connections in response to changes in the available bandwidth and the utilized bandwidth across the communications network, and adjust a frequency of generation of the PIP data packets sent through a portion of the communications network and increase a level of network performance information collected by each of the PIP packets to collect more types of data with the PIP data packets, in response to determining that the portion of the communications network is experiencing a problem.

12. The access node according to claim 11, wherein the CAC engine allocates the available bandwidth by inserting commands in the PIP data packets.

13. The access node according to claim 11, wherein the CAC engine allocates the available bandwidth in-band or out-of-band.

14. The access node according to claim 11, wherein the one of the new connections is allowed in response to determining that the quality of service guarantees will continue to be met for the plurality of customers once the one of the new connections is allowed.

15. The access node according to claim 11, wherein the bandwidth allocation is performed utilizing service level agreements and quality of service agreements with the plurality of customers.

16. A server for handling network communications, the server comprising:

a processor for processing a set of instructions;

and a memory for storing the set of instructions, wherein the set of instructions are executed to;

gather network performance information of a communications network using performance information packet (PIP) data packets to determine a status of a plurality of nodes of the communications network, wherein the PIP data packets include performance information generated by at least some of the plurality of nodes along one or more paths through the communications network, the plurality of nodes including at least two adjacent nodes along a particular path, and wherein the PIP data packets establish windows of time in which each node collects performance information;

determine available bandwidth through connections of the communications network based on the PIP data packets;

adjust a frequency of generation of the PIP data packets sent through a portion of the communications network and increase a level of network performance information collected by each of the PIP packets to collect more types of data with the PIP data packets, in response to determining that the portion of the communications network is experiencing a problem;

and allocate the available bandwidth for the plurality of customers for new connections and utilized bandwidth through the connections as the available bandwidth and utilized bandwidth changes across the communications network.

17. The server according to claim 16, wherein the available bandwidth is allocated by inserting commands in the PIP data packets.

18. The server according to claim 16, wherein the one of the new connections is allowed in response to determining that the quality of service guarantees will continue to be met for the plurality of customers once the one of the new connections is allowed.

19. The server according to claim 16, wherein the available bandwidth is allocated utilizing service level agreements and quality of service agreements with the plurality of customers.

20. The server according to claim 16, further comprising:

a database in communication with the processor, wherein the available bandwidth, utilized bandwidth, and new connections are stored in the database, and wherein the available bandwidth is shifted to each of the plurality of customers based on a service agreement.