[SunHELP] Gigabit Ethernet?

[Kevin Stevens]

Makes sense, thanks!  Doesn't it freak out the arp tables of devices
accessing this box when they see duplicate MACs for different addresses?

KeS

On Wed, 13 Feb 2002, Larry Snyder wrote:

> The heartburn comes when you have two _physical_ interfaces on the same
> shared media with the same mac.  You haven't added a physical, so
> layer two doesn't have to guess where to ship the packet (actually frame).
> I used 'ifconfig qeX ether (some hex mac)' to get around the physical
> problem before I knew about the OBP local-mac-address directive, but
> I had about 3 i/f's visible to the same switch from that box.  Layer
> three sub's are nowhere near as problematic :-)
> -ls-
>
>
> Kevin Stevens <Kevin_Stevens at pursued-with.net> wrote:
> > On Wed, 13 Feb 2002, Larry Snyder wrote:
> >
> > > If they come up with the same mac address on two different ports on the
> > > same switch (or vlan), you'll drive the switch nuts trying to decide which
> > > port is right.  ifconfig -a as root will tell you if this is the case,
> > > and is a way to change it.  It's also an option in OBP.
> > > Good luck,
> > > -ls-
> >
> > In this same vein, I need to assign a virtual interface to my 3Com NIC in
> > an x86 Solaris box on the same network as the primary interface.  First,
> > there wasn't a local-mac-address variable set at all per eeprom - I set it
> > anyway.  I can create secondary interfaces, but the ifconfig ether option
> > won't accept alternate MAC addresses.  Just for the hell of it I created a
> > secondary and addressed it with another IP on the same network.  It
> > doesn't seem to be freaking out, but for the life of me I don't understand
> > why.
> >
> > KeS
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