18415160. ROUND TRIP TIME (RTT) MEASUREMENT BASED UPON SEQUENCE NUMBER simplified abstract (Cisco Technology, Inc.)

ROUND TRIP TIME (RTT) MEASUREMENT BASED UPON SEQUENCE NUMBER

Organization Name

Cisco Technology, Inc.

Inventor(s)

Mohammadreza Attar of Cambridge MA (US)

Navindra Yadav of Cupertino CA (US)

Abhishek Ranjan Singh of Pleasanton CA (US)

Vimalkumar Jeyakumar of Los Altos CA (US)

Shashidhar Gandham of Fremont CA (US)

Roberto Fernando Spadaro of Milpitas CA (US)

ROUND TRIP TIME (RTT) MEASUREMENT BASED UPON SEQUENCE NUMBER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18415160 titled 'ROUND TRIP TIME (RTT) MEASUREMENT BASED UPON SEQUENCE NUMBER

Simplified Explanation

The patent application describes a system for determining a packet's round trip time (RTT) in a network by analyzing the acknowledgment sequence numbers of packets.

• The system receives information about a packet sent in the network and determines the expected acknowledgment (ACK) sequence number associated with the packet.
• It then receives information about a subsequent packet received by the network component, including the ACK sequence number and receiving time.
• If the ACK sequence number of the subsequent packet matches the expected ACK sequence number, the system calculates the round trip time (RTT) of the packet based on the received information.

Potential Applications

This technology can be applied in various network monitoring and optimization systems to improve network performance and reliability.

Problems Solved

1. Efficiently determining the round trip time of packets in a network. 2. Enhancing network performance by accurately measuring packet transmission times.

Benefits

1. Improved network performance and reliability. 2. Enhanced network monitoring capabilities. 3. More accurate measurement of packet transmission times.

Potential Commercial Applications

Optimizing network performance in data centers, improving quality of service in telecommunications networks, enhancing network monitoring tools for IT companies.

Possible Prior Art

There are existing methods and systems for measuring round trip times in networks, such as using timestamp options in TCP packets or calculating RTT based on packet transmission and reception times.

What is the impact of this technology on network performance?

This technology can significantly improve network performance by accurately measuring packet round trip times, allowing for better optimization and troubleshooting of network issues.

How does this innovation compare to existing methods for measuring round trip times in networks?

This innovation offers a more precise and efficient way to determine packet round trip times by analyzing acknowledgment sequence numbers, providing a more reliable measurement of network performance.

Original Abstract Submitted

Systems, methods, and computer-readable media are provided for determining a packet's round trip time (RTT) in a network. A system can receive information of a packet sent by a component of the network and further determine an expected acknowledgement (ACK) sequence number associated with the packet based upon received information of the packet. The system can receive information of a subsequent packet received by the component and determine an ACK sequence number and a receiving time of the subsequent packet. In response to determining that the ACK sequence number of the subsequent TCP packet matches the expected ACK sequence number, the system can determine a round trip time (RTT) of the packet based upon the received information of the packet and the received information of the subsequent packet.