Sunday, December 29, 2019

Portfast and RSTP BPDU gaurd

Hey guys, So I setup a network last week and I used RSTP global on each switch.

Then on the edge ports I used RSTP edge port BPDU guard. However I noticed that the clients didn’t get their IP addresses until 15 seconds or more, in fact many clients got a self assigned IP address then a DHCP address.

So I’m figuring I should also enable PortFast 0.

Now here is a few sticking points, firstly why do some switches use just port fast while others use port fast 0?

Secondly, I guess I’m wrong, but I thought RSTP edge port was the same thing as portfast. Why do I have to enable both port fast and edge port bpdu guard? I thought rstp replaced Stp...

Could I get some insight please?



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