topic Re: SDA Latency Requirements in Software-Defined Access (SD-Access)

SDA Latency Requirements

fatalXerror — Sat, 31 Aug 2024 11:38:57 GMT

Hi Guys,

I know that in the SDA, the latency of each SDA components is very tight.

When designing an SDA, how can we know if we can meet the RTT? For example, from my Edge switch to my DNAC or AP to my WLC and WLC to my DNAC, how do we know if RTT is ok?

Thank you

Re: SDA Latency Requirements

balaji.bandi — Sat, 31 Aug 2024 12:22:24 GMT

Look at the CVD and Datasheet - which guide to each component RTT requirement :

https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#Latency

https://www.cisco.com/c/en/us/products/collateral/cloud-systems-management/dna-center/nb-06-dna-center-data-sheet-cte-en.html

Good Live Presentation also for same reference :

https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2020/pdf/R6BGArNQ/TECCRS-2812.pdf

Re: SDA Latency Requirements

fatalXerror — Sat, 31 Aug 2024 12:26:03 GMT

Thanks @balaji.bandi , thank you for the feedback. What I mean is how can we test the RTT for us to determine if RTT is ok enough for us to propose SDA?

Re: SDA Latency Requirements

balaji.bandi — Sat, 31 Aug 2024 13:13:49 GMT

What I mean is how can we test the RTT for us to determine if RTT is ok enough for us to propose SDA?

May be you can use ping command to check the RTT reachability.

Cisco suggest best RTT to perform solution as expected, i would suggest to follow the same.

RTT only concerned if you are deploying the solution in Geo Location - Inside Campus most should be ok.

when i said Geo location, DNAC and ISE in different Location or WLC in remote Location where B/W is limitation kind of setup

In the CAMPUS LAN should be good.

Re: SDA Latency Requirements

Andrii Oliinyk — Sat, 31 Aug 2024 13:57:43 GMT

keep staying legacy.
hugging