Hey Juan,
There are a few benefits to pruning ( I am sure more than I am
mentioning but its early ;))... Security is one of them for obvious
reasons and also, it reduces broadcast traffic! When a broadcast goes
out for a vlan, why send it to other switches when there are no
clients in that vlan on the other switches to hear it!
HTHs a little!
-Adrian
On Oct 14, 2009, at 12:20 AM, Juan Pablo Corrales wrote:
Hi guys,
I have a couple of questions regarding LAN switching...
1) Can somebody please explain when exactly we use the command
"switchport trunk pruning vlan..." and what is the best scenario to
use it. I know that the default VLANs allowed to be pruned are
2-1001 but if you have a good example besides the one I found at http://packetlife.net/blog/2008/jun/26/when-does-vlan-pruning-occur/
would be great.
2) Also, I´m wondering if QinQ and L2 tunneling is a very important
topic since it seems to be more of a L2 SP topic. ¿Is it really
covered on CCIE R&S or is it covered on SP track?
Thanks in advance.
Regards,
Juan
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_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
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