Ftp tls support - speed drops

[Damian_k]

My router is ac87u, firmware 380.67 I use fast pendrive as ftp and ipad in my lan. Speed up from ftp to lan i have up to 35MB / s but when i turn on tls support, the speed drops to 10MB / s and the processor is heavily loaded. My question is, is this normal? Are other routers in this class also doing this - for example synology?

 

[Jack Yaz]

My router is ac87u, firmware 380.67 I use fast pendrive as ftp and ipad in my lan. Speed up from ftp to lan i have up to 35MB / s but when i turn on tls support, the speed drops to 10MB / s and the processor is heavily loaded. My question is, is this normal? Are other routers in this class also doing this - for example synology?

You would see drops as TLS support is now encrypting traffic, which puts a strain on CPU resources

 

[Damian_k]

I want to change the router for this reason. Can synology rt2600ac also have such a drop in speed?

 

[Damian_k]

When copying a 4GB / s file, this speed difference is significant and no one remembers it

 

[Jack Yaz]

If you're only using the FTP for LAN, why do you require TLS?

 

[Damian_k]

I use as often as wan. Uploading an internet link I have however 65Mbit / s so here is not a problem but i am going home and i would have to switch tls every time. Not enough with usb 3.0 not too fast it's still such an additional drop

 

[Damian_k]

Would changing the router solve this problem?

 

[Jack Yaz]

Would changing the router solve this problem?

A router with a faster cpu would do a better job, but you will always see a drop between encrypted and unencrypted speeds. My advice is to get a proper NAS/FTP server, so the FTP/encryption isn't slowing the router from passing traffic.

 

[Damian_k]

Do you think it would be better to leave this ac87u and buy the synology ds216ii NAS ?

 

[Jack Yaz]

Do you think it would be better to leave this ac87u and buy the synology ds216ii NAS ?

If it supports FTP over TLS for your requirement (which at a glance it seems to be supported on Synology, not sure on which models though https://www.synology.com/en-uk/know..._to_access_files_on_Synology_NAS_via_FTP#t2_1) then a NAS would be better, as you can use more storage and other features, and leave the router to focus on its primary objective of serving traffic!

 

[Damian_k]

For me it would be most important to handle ftps without dropping the transfer rate in lan, the cpu load is not very interested me

 

[Damian_k]

Thank you for the advice