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 > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
