I just wanted to make sure that I can reproduce this from scratch, for anyone who's interested...
Fresh install from 10.04.3 CD, choosing openssh-server as the only "extra" package $ sudo -s $ apt-get update $ apt-get dist-upgrade $ aptitude install iperf ... test network speed -> all OK ... $ aptitude install bridge-utils ... make changes to interfaces file as outlined above $ /etc/init.d/networking restart ... test network speed -> slow ... -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/894608 Title: Implementing a bridge slows 10G network To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bridge-utils/+bug/894608/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs