Understanding Application Experience in Catalyst Center

rasmus.elmholt — Thu, 23 May 2024 07:06:45 GMT

Hi all,

I have configured some 1111 routers to send netflow and application experience data to Catalyst Center.

I see the data coming into the Catalyst Center, but I am not sure if I understand how the data is collected.

My basic understanding of protocols like http and other TCP based protocols are that the router is looking into the TCP flow and finding packet loss based on retransmissions. Latensy is based on ACK and replies in both directions to see how long delay we have from the collector to the client and the server as shown here:

But what I don't understand is what the delay within the application means, and how it is calculated.

Does anyone have any information on how the Application Network Latency data is collected?

https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/catalyst-center-assurance/2-3-7/b_cisco_catalyst_assurance_2_3_7_ug/b_cisco_catalyst_assurance_2_3_6_ug_chapter_01000.html

Re: Understanding Application Experience in Catalyst Center

Sylvain_Che — Thu, 23 May 2024 11:20:00 GMT

Hi,

BRKOPS-2038 - The Flow of Things (p.57-58) might answer your question.

Sylvain.

Re: Understanding Application Experience in Catalyst Center

rasmus.elmholt — Thu, 23 May 2024 13:28:31 GMT

Hi @Sylvain_Che

Just the information I was looking for. Thank you.

topic Re: Understanding Application Experience in Catalyst Center in Cisco Catalyst Center

Understanding Application Experience in Catalyst Center

Re: Understanding Application Experience in Catalyst Center

Re: Understanding Application Experience in Catalyst Center