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Al_Muheiri

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what is the maximum number of switches i can have an single L2 domain running PVSTP ?

I need an answer for the below questions , the answer should be with a trusted answer with refrence
what is the maximum number of switches i can have in a single l2 broadcast domain?? , in another words if i want to make a LAN , what is the maximum number of switches i can have? what is the best practice?  what can go wrong if I have many switches?
if in my network  an interface was flapping can this cause huge number of TCNs and will lead to high CPU ? if correct , how to protect my network from such a thing ?
what are the causes of high CPU in switches in a network in general ?
if my network is configured with udld protection , can high CPU trigger UDLD and my switches will go down ? moreover ,  if my switches was not exchanging BPDUs can thing cause udld to be triggered ?

if there is a duplex misatch can this lead to a seriose problem in the network ?
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Darr247
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In my opinion you're asking too many questions with one post.

> what is the maximum number of switches i can have in a single l2 broadcast domain

Unlike hubs, in which all ports belong to the same collision domain, there is no maximum number of switches you can have between any 2 points in a layer 2 broadcast domain, because every port on a switch is its own collision domain. VLANs don't really change that.

Needing to cite references smacks of homework questions, by the way.
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eeRoot

There is no single answer because it depends on the network topology, VLAN setup, and the amount of network traffic being generated.  The simplest answer is, you can keep adding things to your network until you use up all the available bandwidth or until you run out of IP addresses.
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Thanks Darr247 & eeRoot but still it seems there is no reffrence on this and the other questions is still has not been answered :(
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mat1458
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> what can go wrong if I have many switches?

Your DHCP server could exhaust its scope.

Reference: my brain
mat1458 has provided the Best answer