Question

How to avoid blacklisting droplets due to constant heavy network usage

Hello DO,

After some struggle finding info about DO’s networking specifics , I was able to find this statements:

  • Each physical hypervisor node has multiple 1Gbps network links (up and down).

  • These connections are shared by the droplets on the node

  • If your droplet is constantly above 300Mbps, sooner or later it will be blacklisted

We want to deploy our mobile backend services which have constant heavy network usage profile, so I was hoping you can give us few answers about how to stay safe on your infrastructure, while having some sane networking performance.

  • Are the droplets safe if we have many of them ( > 100 ) that are constantly using 290 Mbps ?

  • Can we go safely above 300Mbps with the private network ?

  • What happens if we hit a hypervisor that has 3 droplets already constantly using > 300 Mbps, is there any traffic shaping applied in that case ?

  • Is there any connection between the instance size and the 300Mbps limit

Regards, Bobby

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Ryan Quinn • November 2, 2016

Some information is a bit out of date. In many of our data centers, hypervisors now have 40Gbps connections (which should answer the question about multiple other droplets).

The 300Mbps is a recommendation but not a hard limit. We began advising this number as it falls below any threshold that could potentially cause an issue if a user failed to reach out about high usage beforehand (such as people seeding (legal) torrents). If you expect to see this kind of usage I would recommend opening a ticket with our support team to discuss options. They can advice on best practices and if needed, make a note on your account regarding the expected bandwidth usage.

BobbyWalks • November 14, 2016

Thanks a lot for the info.