BPDU Matrix
I have read about BPDU features, when configuring Access Port, Port-Fast, Loop Guard , BPDU Guard, UDLD, BPDU Filter, and you name it. It is very confusing..
Sometimes you use one feature and sometimes you combine 2 or even 3 features together. Sometimes they are configured by Port and sometimes Globally.
I would like to know if there is a Matrix that clarifies the combination of those features in order to get a good picture?
I mean a Table with Columns and Rows that shows what does one feature do when configured by itself and when it is combined by other feature(s), when it is configured at Global level and when it is configured at port level.
Cisco should have thought about creating this table if they have not done so.
Any help will be very much appreciated.
Thank you
Sometimes you use one feature and sometimes you combine 2 or even 3 features together. Sometimes they are configured by Port and sometimes Globally.
I would like to know if there is a Matrix that clarifies the combination of those features in order to get a good picture?
I mean a Table with Columns and Rows that shows what does one feature do when configured by itself and when it is combined by other feature(s), when it is configured at Global level and when it is configured at port level.
Cisco should have thought about creating this table if they have not done so.
Any help will be very much appreciated.
Thank you
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I mean if a switch port is configured as access port, but you plug a switch into it ...will this create Loop or topology change ?
It is going to depend on whether adding this switch creates a loop.
So the simple answer is:
If the new switch only has a single connection to the existing network, in other words, no redundant links (no loops), then no. There is no topology change.
But if the new switch has multiple links to the existing network, then you've got loops. And you have a topology change.
Now there's a more complicated answer but I think it best to defer that for another time. ;-)
So the simple answer is:
If the new switch only has a single connection to the existing network, in other words, no redundant links (no loops), then no. There is no topology change.
But if the new switch has multiple links to the existing network, then you've got loops. And you have a topology change.
Now there's a more complicated answer but I think it best to defer that for another time. ;-)
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I will check that later.
Thanks
Thanks
ASKER