PVRST vs PVRST+

Apr 27, 2006 1 Replies

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Bazza 20 years ago

Hi There,

Sorry for the simplicity of this query. What are the differences between PVRST and PVRST+, I have trawled the internet looking for this answer but have been unable to locate it. I understand the differences with PVST and PVST+ with the .1q trunking ability but have not been able to locate information on PVRST and PVRST+.

A colleague suggested that maybe PVRST+ has portfast and uplinkfast integrated and enabled by default if anyone could confirm/contrict this i would be most grateful.

Many Thanks

Barry

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Igor Mamuzic 20 years ago

Hi,

If I recall correctly, P(R)VST+ is made for work with non-Cisco switches that uses 802.1q trunking, because PVST is Cisco only thing... So, if you have Cisco only switches then this thing doesn't concern you much since PVST+ is enabled by default. If you have some non-Cisco equipment (shame on you:))) ) then keep in mind that you can use 3rd party switches, but Cisco will treat them as a separate cloud that supports only CST (one instance for all VLAN's) connected with a single 8021.q trunk.

You can find more about this subject on:

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's written for Catalyst 2960 (since you didn't specified your switches) but it's should be the same thing for all Catalyst boxes...

B.R. Igor

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