Gngogh wrote: »
and why do they need a mac-address for L2 operation??? if other vendors have only 1 mac-address per switch (im i right??).
OfWolfAndMan wrote: »
Do you know what the purpose of a switch is? I would look into that before asking a question like that, especially if you're certified already.
xnx wrote: »
I recommend you re-read your CCENT book, properly
EdTheLad wrote: »
Hi Gngogh, you seem to have gotten a hard time for a valid question. STP uses port-id as a tie breaker, the port-id consists of a combination of the port priority and interface-id. Due to needing a unique interface-id for STP, Cisco paired this interface-id with the base mac and hence each interface gets a unique mac-address. STP aside there would be no issue using the one mac across all ports just like what happens with SVIs on some platforms.