try using both versions

 

and do show vtp status ( word message digest)

 

that should answer ur question
 
> Date: Fri, 10 Jul 2009 11:50:16 -0400
> From: [email protected]
> To: [email protected]
> Subject: [OSL | CCIE_RS] Question Regarding Ver 11 WB 1 task 2.2
> 
> Hi guys,
> 
> I have a question regarding this specific part of task 2.2:
> 
> The task is Cat1 should send VLAN updates with an MD5 one-way hash 
> value. Other switches should not be able to process these updates 
> unless they have the same MD5 value.
> 
> My question is in regards to the solution, where we are told to use VTP 
> Version 2 to require this matching of hash values.
> 
> It was my understanding the both V1 and V2 use consistency checks, and 
> furthermore V1 checks more values than V2. Further more my 
> understanding was the if V2 is used and the Hash's match the VTPv2 will 
> forward it (on that criteria alone), thus reducing the overhead 
> incumbent in VTPv1.
> 
> Reading the question initially seems to imply (based on the solution) 
> that VTPv1 would not check the hash, where VTPv2 would.
> 
> Just asking for clarifications sake.
> 
> Warmest Regards,
> Terry
> 
> _______________________________________________
> For more information regarding industry leading CCIE Lab training, please 
> visit www.ipexpert.com

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