On 10/29/2012 01:47 AM, xrx wrote: > I finally solved it; although a mystery remains. Linux, apparently, does not currently support 802.1Q priority tags by default. A patch was suggested to add such support, but I can't tell from the following thread whether it made it to general release, or when it did if so. http://comments.gmane.org/gmane.linux.network/163762 For now, I expect that you'd need to manually configure a "0" VLAN on interfaces attached to networks where priority tagged packets are used. If that patch was accepted, it may be sufficient to simply load the 8021q kernel module.