Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-09 Thread Marc G. Fournier
Just a quick follow up note on this ... this morning, we upgraded the server in question to latest stable, and rebooted, to see if that would clear up the problem ... The problem persisted, but, based on comments about auto-negotiation made in this thread, I figured I'd see if maybe 'forcing' to

Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-05 Thread Marc G. Fournier
On Sun, 4 Jan 2004, Luigi Rizzo wrote: > It is the OS that generates a gratuitous ARP every time you assign an IP > address (or alias) to a card, though i am not sure if it sends one for > each address assigned to the card, or just one for the newly configured > address -- the latter would not sol

RE: Odd behaviour on em0 device in -stable ... I think ...

2004-01-05 Thread Marc G. Fournier
On Mon, 5 Jan 2004, Sreekanth wrote: > The "Link is up" message can be explained by the fact the device is > reset everytime an alias is added or removed.Network hanging is > explained by the spanning tree protocol working(It prevents the port > from going into Forward state for around 20 seconds)

Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-05 Thread Barney Wolff
On Mon, Jan 05, 2004 at 03:36:43PM -0400, Marc G. Fournier wrote: > > One of the odd things I'm finding with the em0 device, over the fxp0 > device on the other machines, is that if/when I do alias (or -alias), the > network hangs for a couple of seconds, and the following gets generated in > /var

Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-05 Thread Marc G. Fournier
On Sun, 4 Jan 2004, Luigi Rizzo wrote: > i am partly lost on the details of your specific question, but > the symptoms do seem to suggest a stale ARP entry, which must be > in the router (if the switch had a stale entry in its MAC forwarding > table, you would have problems even with local pings,

Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-05 Thread Luigi Rizzo
i am partly lost on the details of your specific question, but the symptoms do seem to suggest a stale ARP entry, which must be in the router (if the switch had a stale entry in its MAC forwarding table, you would have problems even with local pings, not only remote ones). It is the OS that genera

Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-04 Thread Marc G. Fournier
On Sun, 4 Jan 2004, Barney Wolff wrote: > On Sun, Jan 04, 2004 at 04:31:41PM -0400, Marc G. Fournier wrote: > > > > The problem is that I want to move an IP from one of the other servers > > (all with fxp interfaces) over to the 4th, with the em device ... I -alias > > the IP from the fxp device,

Re: Odd behaviour on em0 device in -stable ... I think ...

2004-01-04 Thread Barney Wolff
On Sun, Jan 04, 2004 at 04:31:41PM -0400, Marc G. Fournier wrote: > > The problem is that I want to move an IP from one of the other servers > (all with fxp interfaces) over to the 4th, with the em device ... I -alias > the IP from the fxp device, and alias it over to the em device, and I can > no

Odd behaviour on em0 device in -stable ... I think ...

2004-01-04 Thread Marc G. Fournier
I'm having some odd behaviour with one of my servers ... it is the only one of 4 that I have that has an em device, and, from what I can tell, the problem doesn't exist on any of the other 3 ... The problem is that I want to move an IP from one of the other servers (all with fxp interfaces) over