Cross-stratum optimization protocol

• US 10,181,977 B2
• Filed: 10/06/2015
• Issued: 01/15/2019
• Est. Priority Date: 08/26/2010
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Lee, Young, Xia, Yangsong
• Primary Examiner(s): Khan, Aftab N.
• Application Number:
  US14/876,313
• Publication Number:
  US 20160028583A1
• Time in Patent Office: 1,197 Days
• Field of Search: 709238, 709245, 709217, 709218, 370389, 370401, 370469
• CPC Class Codes: H04L 41/04 Network management architectures or arrangements
• CPC Class Codes: H04L 41/0803 Configuration setting
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 43/20 the monitoring system or the monitored elements being virtualised, abstracted or software-defined entities, e.g. SDN or NFV
• CPC Class Codes: H04L 45/64 using an overlay routing layer
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level

Abstract

An apparatus comprising an application cross-stratum optimization (CSO) gateway (ACG) coupled to an application layer that handles a plurality of servers, a network CSO gateway (NCG) coupled to a network layer that handles a plurality of network nodes and configured to communicate with the ACG using a CSO protocol (CSOP), and a CSO interface established between the ACG and the NCG that enables the exchange of a plurality of CSOP messages to allow joint application-network resource allocation, provisioning, and optimization. Also disclosed is a network apparatus implemented method comprising sending a user profile from a user plane to an application plane, sending an application profile from the application plane to a network plane via a CSO interface between an ACG and a NCG, and sending network capability information from the network plane to the application plane via the CSO interface.

Claims

1. A computer implemented method comprising:

sending a resource query from a service stratum gateway with a hardware processor to a transport stratum gateway via a cross-stratum optimization (CSO) interface using a cross-stratum optimization protocol (CSOP) between the service stratum gateway and the transport stratum gateway to enable the different functionalities of the application cross-stratum gateway (ACG) and network CSO gateway (NCG) for related communications, including signaling, messaging, and information exchange,

wherein the service stratum gateway collectively handles communications from a plurality of servers managing applications in a service stratum and the transport stratum gateway collectively handles CSOP communications from a plurality of network nodes managing a transport network wherein the CSOP communications include CSO messages that comprise path estimation, path reservation, network topology or virtual machine topology query;

exchanging status data for monitoring, controlling, and managing the transport network across the cross-stratum optimization (CSO) interface for provisioning application, network congestion, failure information utilizing at least bandwidth profile object used to specify the required bandwidth for a path and comprises a transport layer field, a plurality of flags, an asymmetric bandwidth indicator bit, a reserved field, a downstream of bi-directional bandwidth field, and an upstream bandwidth field; and

transmitting a reservation request from the service stratum gateway to the transport stratum gateway via the cross-stratum optimization (CSO) interface to reserve a guaranteed bandwidth across the transport network, the service stratum gateway and the transport stratum gateway being at least partially implemented in hardware, the reservation request including a path object having a type length value (TLV) field, the TLV field carrying a path identifier identifying a path to be reserved.

2. The method of claim 1, wherein the resource query comprises a source, a destination, a bandwidth, a maximum latency, and a maximum jitter.

3. The method of claim 1, wherein the reservation request comprises a service profile indicating a quality of service (QoS) an application requires of the transport network.

4. The method of claim 1, further comprising receiving a Keep Alive message at the service stratum gateway from the transport stratum gateway.

5. The method of claim 1, wherein the reservation request is sent to setup a new path in a transport stratum or modify an existing path in the transport stratum.

6. The method of claim 5, wherein the resource query is sent to get a status of resources in the transport stratum to perform a cross stratum optimization calculation.

7. The method of claim 6, further comprising receiving a response message at the service stratum gateway from the transport stratum gateway in response to the resource query, the response message comprising a status of resources in the transport stratum.

8. The method of claim 1, wherein the reservation request comprises a service profile object generated in the service stratum and indicating data related to the request.

9. The method of claim 8, wherein the reservation request comprises an object indicating a requested bandwidth.

10. The method of claim 8, wherein the reservation request comprises an object indicating a bi-directional path constraint.

11. The method of claim 8, wherein the reservation request comprises an object indicating a unidirectional path constraint.

12. The method of claim 8, wherein the reservation request comprises an object indicating a request for a 1+1 protection across a transport stratum.

13. The method of claim 8, wherein the reservation request further comprises performance constraint object indicating constraints for the reservation request.

14. The method of claim 13, wherein the performance constraint object indicates a jitter bound for the request.

15. The method of claim 13, wherein the performance constraint object indicates a latency delay bound.

16. A service stratum gateway comprising:

a transmitter configured to send a resource query to a transport stratum gateway via a cross-stratum optimization (CSO) interface using a cross-stratum optimization protocol (CSOP) between the service stratum gateway and the transport stratum gateway, wherein the service stratum gateway collectively handles communications from a plurality of servers managing applications in a service stratum and the transport stratum gateway collectively handles CSOP communications from a plurality of network nodes managing a transport network, wherein the CSOP communications involving CSO messages that comprise path estimation, path reservation, network topology or virtual machine topology query;

a receiver configured to receive status data for monitoring, controlling, and managing the transport network across the cross-stratum optimization (CSO) interface for provisioning application, network congestion, failure information utilizing at least bandwidth profile object used to specify the required bandwidth for a path and comprises a transport layer field, a plurality of flags, an asymmetric bandwidth indicator bit, a reserved field, a downstream of bi-directional bandwidth field, and an upstream bandwidth field; and

a hardware processor coupled to the transmitter and receiver and configured to cause the transmitter to transmit a reservation request to the transport stratum gateway via the cross-stratum optimization (CSO) interface to reserve a guaranteed bandwidth across the transport network, the reservation request including a path object having a type length value (TLV) field, the TLV field carrying a path identifier, identifying a path to be reserved in the transport network.

17. The service stratum gateway of claim 16, wherein the reservation request is sent to setup a new path in a transport stratum or modify an existing path in the transport stratum.

18. The service stratum gateway of claim 16, wherein the resource query is sent to get a status of resources in a transport stratum to perform a cross stratum optimization calculation.

19. The service stratum gateway of claim 16, wherein the receiver is further configured to receive a response message from the transport stratum gateway via the interface in response to the resource query, the response message comprising a status of resources in a transport stratum.

20. The service stratum gateway of claim 16, wherein the resource query comprises a source, a destination, a bandwidth, a maximum latency, and a maximum jitter.