System and method of providing segment routing as a service

• US 10,708,183 B2
• Filed: 07/21/2016
• Issued: 07/07/2020
• Est. Priority Date: 07/21/2016
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Jeuk, Sebastian, Salgueiro, Gonzalo
• Primary Examiner(s): Swearingen, Jeffrey R
• Application Number:
  US15/216,653
• Publication Number:
  US 20180026885A1
• Time in Patent Office: 1,447 Days
• Field of Search: None
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
• CPC Class Codes: H04L 41/40 using virtualisation of network functions or resources, e.g. SDN or NFV entities
• CPC Class Codes: H04L 41/5032 Generating service level reports
• CPC Class Codes: H04L 45/04 Interdomain routing, e.g. hierarchical routing
• CPC Class Codes: H04L 45/12 Shortest path evaluation
• CPC Class Codes: H04L 45/308 Route determination based on user's profile, e.g. premium users
• CPC Class Codes: H04L 45/42 Centralised routing
• CPC Class Codes: H04L 45/586 of virtual routers
• CPC Class Codes: H04L 45/64 using an overlay routing layer
• CPC Class Codes: H04L 47/125 by balancing the load, e.g. traffic engineering
• CPC Class Codes: H04L 47/2425 for supporting services specification, e.g. SLA

Abstract

Disclosed is a system and method of providing a segment routing as a service application. The method includes receiving a configuration of an internet protocol environment. The configuration can be a layer 3 configuration of a single cloud environment or even across multiple cloud environments. The configuration defines routing, forwarding, and paths in the environment between different entities such as virtual machines. The method includes receiving a parameter associated with a workload of a tenant. The parameter can be a service level agreement (i.e., a best bandwidth available), a pathway requirement, a parameter associated with specific workload, and so forth. Based on the configuration and the parameter, the method includes generating tenant-defined layer 3 overlay segment routing rules that define how the workload of the tenant will route data in the internet protocol environment using segment routing.

Claims

1. A method comprising:

receiving a configuration of an internet protocol environment;

receiving a parameter associated with a workload of a tenant;

based on the configuration and the parameter, generating tenant-defined layer 3 overlay segment routing rules that define how the workload of the tenant will route data in the internet protocol environment using segment routing; and

selecting a time to modify the tenant-defined layer 3 overlay segment routing rules and adjust the segment routing.

2. The method of claim 1, wherein the configuration is configured using an interior gateway protocol and represents a layer 3 environment.

3. The method of claim 2, wherein the interior gateway protocol comprises at least one of RIB details, link costs, metrics, router capability, or shortest path to infrastructure points.

4. The method of claim 1, wherein the parameter comprises at least one of a tenant-defined layer 3 connectivity, a service level agreement, a specific resource capability, a per-application parameter, a timing parameter, or a cost parameter.

5. The method of claim 1, wherein the configuration comprise the internet protocol environment connecting a first virtual machine and a second virtual machine.

6. The method of claim 5, wherein the tenant-defined layer 3 overlay segment routing rules is associated with a layer 3 overlay defining a second configuration of the internet protocol environment between the first virtual machine and the second virtual machine.

7. The method of claim 1, further comprising:

receiving feedback associated with an application of the tenant-defined layer 3 overlay segment routing rules such that an updated version of the tenant-defined layer 3 overlay segment routing rules is generated.

8. The method of claim 7, wherein the feedback comprises data on one of bandwidth, jitter, latency, or pricing requirements.

9. The method of claim 1, wherein generating the tenant-defined layer 3 overlay segment routing rule is performed on a per-virtual environment basis.

10. The method of claim 1, wherein generating the tenant-define layer 3 overlay segment routing rules replace existing segment routing rules.

11. A system comprising:

one or more processors; and

a computer-readable medium, storing instructions which, when executed by the one or more processors, cause the one or more processors to perform operations comprising;

receiving a configuration of an internet protocol environment;

receiving a parameter associated with a workload of a tenant;

based on the configuration and the parameter, generating tenant-defined layer 3 overlay segment routing rules that define how the workload of the tenant will route data in the internet protocol environment using segment routing; and

selecting a time to modify the tenant-defined layer 3 overlay segment routing rules and adjust the segment routing.

12. The system of claim 11, wherein the configuration is configured using an interior gateway protocol and represents a layer 3 environment.

13. The system of claim 11, wherein the parameter comprises one or more of a tenant-defined layer 3 connectivity, a service level agreement, a specific resource capability, a per-application parameter, a timing parameter, and a cost parameter.

14. The system of claim 12, wherein the interior gateway protocol comprises at least one of RIB details, link costs, metrics, router capability, or shortest path to infrastructure points.

15. The system of claim 11, wherein the configuration comprise the internet protocol environment connecting a first virtual machine and a second virtual machine.

16. The system of claim 15, wherein the tenant-defined layer 3 overlay segment routing rules is associated with a layer 3 overlay defining a second configuration of the internet protocol environment between the first virtual machine and the second virtual machine.

17. The system of claim 11, wherein the operations include receiving feedback associated with an application of the tenant-defined layer 3 overlay segment routing rules such that an updated version of the tenant-defined layer 3 overlay segment routing rules is generated.

18. The system of claim 17, wherein the feedback comprises data on one of bandwidth, jitter, latency, or pricing requirements.

19. The system of claim 11, wherein generating the tenant-defined layer 3 overlay segment routing rule is performed on a per-virtual environment basis.

20. A computer-readable storage device storing instructions which, when executed by a processor, cause the processor to perform operations comprising:

receiving a configuration of an internet protocol environment;

receiving a parameter associated with a workload of a tenant;

based on the configuration and the parameter, generating tenant-defined layer 3 overlay segment routing rules that define how the workload of the tenant will route data in the internet protocol environment using segment routing; and

selecting a time to modify the tenant-defined layer 3 overlay segment routing rules and adjust the segment routing.