em (+pf+vlan+bridge+netgraph) stop sending packets (?)

[Yuriy Tsibizov]

> > On Wed, Apr 19, 2006 at 04:15:10PM +0400, Yuriy Tsibizov wrote:
> > > I run a 6.1-RC (as of Apr, 14th) and after a day nothing 
> > can be sent from em interface.
> > > 
> > > It is a filtering+accounting bridge-on-a-stick, with em interface
> > > connected to 3Com Switch 4200 100Mbit (not Gbit) port 
> with 4 tagged
> > > vlans on it:
> > > 
> > > Polling was not used (I'll try to work with polling 
> enabled on em0).
> > > 
> > > ALTQ is not configured, pf has all block rules logged and I 
> > can't see anything relevant logged to pflog.
> > > 
> > > Traffic is received (I can see pairs of OSPF HELO 
> messages from ISP
> > > router logged on pflog0 exactly every 10 seconds), but it 
> looks like
> > > nothing can be sent.
> > 
> > A bridge on a stick only works under certian conditions, 
> > mainly support
> > by the switch its connected to. Its obviously working for you for a
> > period of time so thats probably ok.
> > 
> > Make sure that you dont use scrubbing with pf as the bridge doesn't
> > handle the fragment reassembly at the moment.
> I had it, and will try to work without it. 
One question - if pf was the cause, should it recover when I disable pf?
As I remeber, the box was still silent on vlan interfaces, when pf was disabled with "/etc/rc.d/pf stop".

Yuriy