Service latency monitoring using two way active measurement protocol

• US 10,110,455 B2
• Filed: 07/05/2017
• Issued: 10/23/2018
• Est. Priority Date: 12/17/2014
• Status: Active Grant

• Current Assignee: Juniper Networks Incorporated
• Original Assignee: Juniper Networks Incorporated
• Inventors: Sarangapani, Srivathsa, Gupta, Peyush, Agarwal, Amit Kumar
• Primary Examiner(s): Jakovac, Ryan
• Application Number:
  US15/641,827
• Publication Number:
  US 20170302548A1
• Time in Patent Office: 475 Days
• CPC Class Codes: G06F 11/3414 Workload generation, e.g. scripts, playback
• CPC Class Codes: G06F 21/33 using certificates
• CPC Class Codes: H04L 41/28 Restricting access to network management systems or functions, e.g. using authorisation function to access network configuration
• CPC Class Codes: H04L 43/0864 Round trip delays
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/141 Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• CPC Class Codes: H04L 9/3242 involving keyed hash functions, e.g. message authentication codes [MACs], CBC-MAC or HMAC
• CPC Class Codes: H04L 9/3297 involving time stamps, e.g. generation of time stamps

Abstract

A device may establish a communication session, with a client device, for monitoring a latency of a service. The device may receive, from the client device, a request for a monitored service list. The monitored service list may identify one or more services for which service latency monitoring is supported. The device may provide, to the client device, the monitored service list. The device may receive, from the client device, a service latency monitoring session request that may identify the service to be monitored. The device may establish, with the client device, the service latency monitoring session based on the service latency monitoring session request. The device may cause the service to be performed. The device may generate information for determining the latency of the service. The device may transmit, to the client device and via the service latency monitoring session, the information for determining the latency of the service.

Claims

1. A method, comprising:

receiving, by a device, at a first receipt time, and from a client device, a packet and a first time stamp associated with the packet,

the first time stamp being associated with a transmission time of the packet;

associating, by the device, the packet with a second time stamp,

the second time stamp being associated with the first receipt time;

transmitting, by the device and to a service device, the packet and at least one of;

the first time stamp,

the second time stamp, or

a third time stamp associated with transmitting the packet to the service device;

receiving, by the device, at a second receipt time, and based on a service being performed on the packet, the packet and at least one of;

the first time stamp,

the second time stamp, or

the third time stamp;

associating, by the device, the packet with a fourth time stamp associated with the second receipt time;

calculating, by the device, a service latency based on the third time stamp and the fourth time stamp; and

transmitting, by the device and to the client device, the packet, information identifying the service latency, and at least one of;

the first time stamp,

the second time stamp,

the third time stamp, or

the fourth time stamp.

2. The method of claim 1, where the packet includes information regarding an error associated with the first time stamp.

3. The method of claim 1, where the packet includes information identifying at least one of:

a source,

a destination, or

a manner in which the packet is to be processed.

4. The method of claim 1, where a mirror packet is generated to monitor the service latency.

5. The method of claim 1, further comprising:

generating a packet identifier based on receiving, at the first receipt time, the packet; and

associating the packet identifier with the third time stamp.

6. The method of claim 1, further comprising:

causing the service device to perform the service based on transmitting the packet to the service device.

7. The method of claim 1, where the service includes at least one of:

an IPSEC service,

a network flow monitoring service,

a DPI service,

a CGNAT service,

a subscriber-aware service,

a security service,

a traffic load balancing service,

a content delivery service,

a real time streaming service, or

a firewall service.

8. A device, comprising:

one or more processors to;

receive, at a first receipt time, and from a client device, a packet and a first time stamp associated with the packet,

the first time stamp being associated with a transmission time of the packet;

associate the packet with a second time stamp,

the second time stamp being associated with the first receipt time;

transmit, to a service device, the packet and at least one of;

the first time stamp,

the second time stamp, or

a third time stamp associated with transmitting the packet to the service device;

receive, at a second receipt time, and based on a service being performed on the packet, the packet and at least one of;

the first time stamp,

the second time stamp, or

the third time stamp;

associate the packet with a fourth time stamp associated with the second receipt time;

calculate a service latency based on the third time stamp and the fourth time stamp; and

transmit, to the client device, the packet, information identifying the service latency, and at least one of;

the first time stamp,

the second time stamp,

the third time stamp, or

the fourth time stamp.

9. The device of claim 8, where the one or more processors are further to:

compare, based on receiving the packet at the second receipt time, a packet identifier associated with the packet and at least one of;

a stored packet identifier, or

a stored packet header.

10. The device of claim 8, where the one or more processors, when calculating the service latency, are to:

calculate the service latency by subtracting a value indicated by the third time stamp from a value indicated by the fourth time stamp.

11. The device of claim 8, where the one or more processors are further to:

associate the packet with a fifth time stamp associated with a transmission time of the packet to the client device; and

transmit, to the client device, the information identifying the service latency and at least one of;

the first time stamp,

the second time stamp,

the third time stamp,

the fourth time stamp, or

the fifth time stamp.

12. The device of claim 8, where the one or more processors are further to:

associate the packet with a fifth time stamp associated with a third receipt time,

the third receipt time being associated with a time that the client device receives the packet from the device; and

calculate a total round trip time based on the first time stamp and the fifth time stamp.

13. The device of claim 12, where the one or more processors, when calculating the total round trip time, are to:

calculate the total round trip time by subtracting a value represented by the first time stamp from a value represented by the fifth time stamp.

14. The device of claim 8, where the one or more processors are further to:

compare the service latency with one or more service latencies associated with one or more other services.

15. A non-transitory computer-readable medium storing instructions, the instructions comprising:

one or more instructions that, when executed by one or more processors, cause the one or more processors to;

receive, at a first receipt time, and from a client device, a packet and a first time stamp associated with the packet,

the first time stamp being associated with a transmission time of the packet;

associate the packet with a second time stamp,

the second time stamp being associated with the first receipt time;

transmit, to a service device, the packet and at least one of;

the first time stamp,

the second time stamp, or

a third time stamp associated with transmitting the packet to the service device;

receive, at a second receipt time and based on a service being performed on the packet, at least one of;

the packet,

the first time stamp,

the second time stamp, or

the third time stamp;

associate the packet with a fourth time stamp associated with the second receipt time;

calculate a service latency based on the third time stamp and the fourth time stamp; and

transmit, to the client device, at least one of;

the packet,

information identifying the service latency,

the first time stamp,

the second time stamp,

the third time stamp, or

the fourth time stamp.

16. The non-transitory computer-readable medium of claim 15, where the one or more instructions, when executed by the one or more processors, further cause the one or more processors to:

associate the packet with a fifth time stamp associated with a third receipt time,

the third receipt time being associated with a time that the client device receives the packet;

calculate a total round trip time based on the first time stamp and the fifth time stamp; and

calculate a round trip time by subtracting a value associated with the service latency from a value associated with the total round trip time.

17. The non-transitory computer-readable medium of claim 15, where the one or more instructions, when executed by the one or more processors, further cause the one or more processors to:

associate the packet with a fifth time stamp associated with a transmission time of the packet to the client device;

associate the packet with a sixth time stamp associated with a third receipt time,

the third receipt time being associated with a time that the client device receives the packet;

calculate a total round trip time based on the first time stamp and the sixth time stamp; and

calculate a round trip time by subtracting, from a value associated with the total round trip time, a value associated with a difference between the fifth time stamp and the second time stamp.

18. The non-transitory computer-readable medium of claim 15, where the one or more instructions, when executed by the one or more processors, further cause the one or more processors to:

associate the packet with a fifth time stamp associated with a transmission time of the packet to the client device; and

calculate a total latency time by subtracting a value represented by the second time stamp from a value represented by the fifth time stamp.

19. The non-transitory computer-readable medium of claim 15, where the one or more instructions, when executed by the one or more processors, further cause the one or more processors to:

generate a packet identifier based on receiving, at the first receipt time, the packet; and

store the packet identifier.

20. The non-transitory computer-readable medium of claim 19, where the packet identifier is a first packet identifier;

where the one or more instructions, that cause the one or more processors to receive, at the second receipt time, at least one of the packet, the first time stamp, the second time stamp, or the third time stamp, cause the one or more processors to;

receive, at the second receipt time, a second packet identifier and at least one of;

the packet,

the first time stamp,

the second time stamp, or

the third time stamp; and

where the one or more instructions, when executed by the one or more processors, further cause the one or more processors to;

identify the packet based on comparing the second packet identifier and the first packet identifier.