TX rate lower than RX

[libro22]

I'm quite confused with this one, my outbound speed is lower than my inbound:
 

From iftop:


TX: 24.2Kb  15.3Kb  12.6Kb
RX: 24.7Mb  23.9Mb  23.2Mb
TOTAL: 24.7Mb  23.9Mb  23.2Mb
This is a dedi server running cPanel, bandwidth ratelimited to 25Mbps.

I'm quite lost on how to proceed with this, I'm sorry. Where to check now? Can this be a network mis-configuration on the DC's end?

A little help would be appreciated. 

 

[SentinelTower]

Hi,

iftop show bandwidth usage (as htop does for the CPU). Are you sending any data while running iftop or only downloading ?

 

[libro22]

Hi,

iftop show bandwidth usage (as htop does for the CPU). Are you sending any data while running iftop or only downloading ?

There are a lot of active websites in it, so yes, the traffic is very much flowing.

 

[SentinelTower]

Is it the right network interface?

Have you try downloading a big file from your server while doing this test?

Do your websites "feel" slow ?

Maybe something is downloading data on your server and "eat" all the bandwidth available: do you run backup scripts or file sharing clients while running the test ?