Hi List!
Another one that's caused me some confusion over the years!
In the macro:
spanning-tree vlan x root primary diameter y
what exactly is the diameter?
I've got my copy of Clark/Hamilton here, and they define it as:
"the maximum number of bridges that any two end work stations have to go
through to communicate".
That is all well and good, but on what basis? Is that on the basis of a
network that is fully functional, where STP is stable and all links are
functional? Or do you take a conservative, worst case scenario, in which there
have been link failures and the longest possible string of switches exist?
E.G in the proctor labs set up, with all inter-switch links configured, you'd
have a diameter of 3 as every switch is directly connected to the root switch.
OR....do you say that if there are link failures, a frame may have to go
through 4 switches to reach its destination?
In an exam, which do you choose?
George.
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