Server side content delivery network quality of service

Patent metadata

Field	Value
Publication number	US-2019052541-A1
Application number	US-201816160878-A
Country	US
Kind code	A1
Filing date	Oct 15, 2018
Priority date	Apr 6, 2015
Publication date	Feb 14, 2019
Grant date	—

Abstract

Aspects of the present disclosure involve systems and methods for monitoring and quantifying the performance of a content delivery network (CDN) from a client side perspective based on server side events. In one particular embodiment, one or more content servers of the CDN may provide connectivity or other performance information to a collector device or site. This information may be reported by each of the content servers for each request for content received at the server. The collector site may then store the received performance information in a database for analysis by one or more systems.

First claim

What is claimed is:

1 . A method comprising:
receiving:
content request performance metrics from a content server of a content delivery network (CDN), the content request performance metrics related to processing of a content request from a client device by the content server;
an identification of the client device comprising an identification of an access network through which the client device communicates with the content server; and
network connection information associated with the client device;
correlating the received content request performance metrics with the network connection information to generate enriched performance metrics, wherein the correlating step is based at least in part on the identification of the client device; and distinguishing a potential external network performance issue from a potential CDN performance issue based at least on the enriched performance metrics.

2 . The method as recited in claim 1 wherein the content request performance metrics from the content server is received via a transmission control protocol (TCP) socket established by the content server in response to the content request from the client device.

3 . The method as recited in claim 1 wherein the content request performance metrics comprise an indication of a number of packet losses during the processing of the content request.

4 . The method as recited in claim 1 wherein the content request performance metrics comprise a round trip timer (RTT) indication corresponding to a total time measured for providing at least a portion of a requested content.

5 . The method as recited in claim 4 wherein the content request performance metrics further comprise the RTT indication less than a measured timing delay at a socket buffer from network back pressure on the socket buffer during the processing of the content request.

6 . The method as recited in claim 1 wherein the identification of the client device comprising an Internet Protocol (IP) address associated with the client device.

7 . The method as recited in claim 1 wherein the network connection information comprises an estimated geographical location of the client device based on the IP address associated with the client device.

8 . The method as recited in claim 1 wherein the network connection information comprises an estimated geographical location of the access network based on the identification of the access network.

9 . The method as recited in claim 1 wherein the identification of the client device further comprises an identification of a resolver device for the client device and the network connection information comprises an estimated geographical location of the resolver device based on the identification of the resolver device.

Assignees

• Level 3 Communications Llc

Inventors

• Hopkins William
• Power William R

Classifications

• H04L41/142 Primary

  using statistical or mathematical methods · CPC title

• H04L43/0864

  Round trip delays · CPC title

• H04L43/0829

  Packet loss · CPC title

• H04L41/12

  Discovery or management of network topologies · CPC title