[SunHELP] Gigabit Ethernet?

[Suhas Kamble]

Has anyone setup 2 Gigabit cards in IP multi-pathing? Under which Solaris?
What's the procedure? we have dual homing on our servers, but we change
manually the IP address if one of the IP fails.. If this can be automated,
nothing like it..We use Solaris 2.6
Thanks in advance..

-Suhas

-----Original Message-----
From: sunhelp-admin at sunhelp.org [mailto:sunhelp-admin at sunhelp.org]On
Behalf Of Larry Snyder
Sent: Wednesday, February 13, 2002 7:38 PM
To: sunhelp at sunhelp.org
Subject: Re: [SunHELP] Gigabit Ethernet?


Not at all.  Consider the case where a router proxy-arps for hosts
behind it.  arp is the glue between layers 2 & 3.  You can have
more than 1 layer 3 on 1 layer 2.  You don't want to go the other way.
-ls-

Kevin Stevens <Kevin_Stevens at pursued-with.net> wrote:
> 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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