Hi Matt,

The plugged device (switch) Gigabit interface is auto negotiating to 100.
I'm talking about the speed not the bandwidth.

Thanks,
- Mohammad

On Tue, Jul 27, 2010 at 12:27 AM, Matt Hill <[email protected]> wrote:

> HI Mohammad,
>
> Are you sure the interface is at 100/F?  Is the interface just showing
> "bandwidth 100" under show interfaces?
>
> What speed is the device plugged into the Gigabit port of the BVI
> negotiating at?
>
> I have a feeling that the BVI is reporting 100 for the "bandwidth"
> statement for your routing, qos etc under show interfaces but the L2
> interface is still working at 1000.
>
> Cheers,
> Matt
>
> CCIE #22386
> CCSI #31207
>
> On 27 July 2010 04:14, Mohammad Itani <[email protected]> wrote:
> > My friend asked me a question about a BVI used to combine
> > one GigabitEthernet interface and one FastEthernetinterface.
> >
> > The BVI is always working at the speed of 100 Mbps although stp is
> blocking
> > the path through the FastEthernet (used as a backup path only).
> >
> > When he unplugs the fastethernet cable the bvi works at the gigabit speed
> > but when he plugs it again it falls to the lowest speed.
> >
> > Can we force BVI someway to perform at the speed of the Gigabit interface
> > and only fall back when the other path is not blocking?
> >
> > I know this doesn't seem to be logical but just maybe in case there's a
> way
> > to help my friend :)
> >
> > Thanks,
> >
> > - Mohammad
> >
> > _______________________________________________
> > For more information regarding industry leading CCIE Lab training, please
> > visit www.ipexpert.com
> >
> >
>
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