KVM Rate Limit doesn't work well

yena

Active Member
Nov 18, 2011
315
2
38
Hello,
i have tested rate limit on a KVM vps ( proxmox 5 last version ).
It doesn't work on UDP flood.

A single vps in my case, put down an entire machine..

Some ideas ?

Thanks
 

Richard

Proxmox Staff Member
Staff member
Mar 6, 2015
768
28
48
Austria
i have tested rate limit on a KVM vps ( proxmox 5 last version ).
It doesn't work on UDP flood.

A single vps in my case, put down an entire machine..

Some ideas ?
Post the respective container configuration file and tell what you tested exactly.
 

Matzer

New Member
Oct 1, 2019
1
0
1
48
Proxmox 6, rate limited to 1MB/s a KVM VM, still outputs 50MB/s
Still a problem limiting outgoing traffic?
 

dm15

New Member
Mar 4, 2018
13
3
3
79
I can confirm the rate limiting has strange behaviour starting far back from versions 5 and it is not resolved up to the latest 6 version, it should be reviewed.
Did not investigate it completely, but what obvious is that setting a desired rate never works fine for UDP floods, the only way to limit a flooder is to set a limit of 1 MB/s (which still indeed will output around 50MB/s)
 

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