virtualbox.org

Hi All,

My host is a Mac OS X 10.10.4, Virtual Box 5.0.2. My guest is a Debian 64-bit machine with NIC's as paravirtualized network types. I am observering very slow bandwidth transfers when I do a "wget" from the guest machine to another VM (Ubuntu 64-bit) acting as a http server.

Most of the tests and information I've posted on the vendor community site that provided the VM guest image, here: https://community.cumulusnetworks.com/c ... o-nic-slow

One of my friends haas been able to reproduce this on his MacOS, and others say they cannot. So we're all a bit baffled at this point as to why this is happening. If you have time and interest, please review that thread, and post here or there.

We'd really appreciate any ideas / suggestions at this point.

Thank you all,
-- Jeremy

Hi All,

Just a follow-up as I figured it out. It turns out that when I have a mix of network adapter types on the same network, in my case some Intel PRO and some paravirtualized, it causes the "slow" behavior. When I have all the NICs configured to use the same adapter type, in this case all set to paravirtualized, everything works nicely.

-- Jeremy