network cisco ccna gns3 certification arteq

network cisco ccna gns3 certification arteq
a network runs through it

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Thursday, November 3, 2011

why? how? wtf...

why hasn't cisco fabricated rj-45 to usb console cables?
so you can go out and spend 40 bucks to buy a 3rd party adapter...

when a root bridge is established, why is its priority 32769?
because of  sys-id-ext 1

how often does spanning-tree send hellos?
every 2 seconds

if you debug spanning-tree you can expect a lot of output at the console, so how do you preempt this?
by issuing the command un all before issuing the command debug spanning-tree... why?
so you can stop the madness by pressing up arrow and enter, to turn it off...

from a telnet session you issue debug spanning-tree... why isn't there any output to the screen?
you haven't issued terminal monitor from privileged-exec mode, that's why...

to accomplish convergence, what states must the ports be in?
blocking and forwarding

and how long does convergence take?
50 seconds

how do you turn off stp to get rid of this 50 second shit on a port?
in interface configuration mode use spanning-tree portfast and the the interface will move to forwarding on linkup


  1. so....if i debug my boyfriend's spanning tree i can stop the madness?

  2. i think you're talking about debuggery...