Hi, I just wrote about the vpc technologies, and I have two questions 1. I didn't understand what can cause a case of a duplicate system ID in several vpc peers. I underrated that stp and the lacp use the system ID for their calculations, but what ex...

Hi I read about the Process Switching and Fast Switching in the Cisco documents, and the explanation about the two subject is the same. The only different that I saw there was that in the process switching paragraph was written that the first packet ...

Hi i have in my network a pe1 that connect to pe2. Pe2 connect to the P. when the line from pe2 to pe1 is down, after it get up again, all the ldp neighbor and ospf is up too, but  suddenly  i don't have ping the lan segments of pe1. It is happen all...

Hi, I have a spsific question about the funciton of root guard, that I can't checkit now on my own from some reason, so i it can be very helpfull if someone can answer me for this. I learned that the root guard put the port that it configured on it i...