Re: kern/29126: tcpdump leads to packet loss

[Mark Davies <mark%ecs.vuw.ac.nz@localhost>]

The following reply was made to PR kern/29126; it has been noted by GNATS.

From: Mark Davies <mark%ecs.vuw.ac.nz@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/29126: tcpdump leads to packet loss
Date: Sun, 12 Jul 2009 22:33:02 +1200

 This is still a problem with wm in NetBSD 5.0.
 
 [I hadn't particularly noticed the issue till now with our machines with wm 
 (probably because the switch ports are set to do "portfast" spanning tree) 
 but on looking I see that there is a three second or so break going into 
 or out of promisc.  However we now have some machines with wm interfaces 
 that are configured as 802.1q trunks and if you put those into promisc 
 there is a 35 second disruption]