Commit e028de5b authored by Ben Pfaff's avatar Ben Pfaff

ovs-vlan-bugs: Document driver bug with priority tagged packets.

Reported-by: default avatarJesse Gross <>
parent b080ed09
......@@ -6,6 +6,11 @@ the extracted tag. Drivers are supposed to only enable stripping if a
\fBvlan_group\fR is registered but not all of them do that.
.IP \(bu
On receive, some drivers handle priority tagged packets specially and
don't pass the tag onto the network stack at all, so Open vSwitch
never has a chance to see it.
.IP \(bu
Some drivers size their receive buffers based on whether a
\fBvlan_group\fR is enabled, meaning that a maximum size packet with a
VLAN tag will not fit if no \fBvlan_group\fR is configured.
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