Re: need help on the following interview questions

Hi

"plz give me precise answers for the above questions , and more detailed
answer to q 1 he was referring to mac flushing.."

I think what he was referring to the fact that a switch which receives a
BPDU with the TCA flag set, will change their MAC age timer to the Spanning
Tree Forwarding Delay to time out the MAC entries faster.
The TCA Flag is set by the root bridge after it received a TCN BPDU.

Hope it helps

regards

Michel

On 20 December 2010 22:21, ehtesham ali <conect2ehtesham_at_gmail.com> wrote:

> Hi group ,
>
> 1) what happens when a switch receives a TCN BPDU'S ?
> 2) Difference between flooding and broadcasting ?
> 3) does a cisco 3750 switch supports MLS and MQC QOS ?
>
> my answers :
> 1) Receiving switch replicates the TCN bpdu and sends it out of its root
> port , (after acknowledging the downstream bridge ) until the root bridge
> is
> hit by TCN bpdu
>
> 2) one and the same
> 3) yes
>
> plz give me precise answers for the above questions , and more detailed
> answer to q 1 he was referring to mac flushing..
>
> Regards
>
>
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Received on Tue Dec 21 2010 - 10:14:55 ART