Sunday, April 10, 2005, 5:29:41 PM, Jason wrote:

JA> On Sun, 10 Apr 2005, Alexey E. Suslikov wrote:

>> If physical interface has no link, it is 100% true, what
>> there will be no any frames on VLAN interfaces associated
>> with this physical interface. And vice versa: if parent
>> physical interface is "active", it is 100% true, what VLAN
>> interface can see frames.

JA> The second case is not 100% true. You are assuming that an 'up' interface
JA> is configured for a VLAN trunk on 'the other side' and that the trunk
JA> configuration includes the VLANs that you are interested in seeing on
JA> your OpenBSD box.

Jason, noone told about "up/down"

I told about link state ("status" in ifconfig's terms): if you
have cable unplugged ("no carrier" in ifconfig's terms) on parent,
vlan will see no frames. This is 100% true. No matter if physical
interface trunked or not.

Interface can be "up" and have "no carrier" status at the same
time.