[afnog] unable to set VTP mode, password and domain name on Cisco 6509 switch

[Mark Tinka]

On Friday, April 08, 2011 05:35:39 PM teklay gebremichael 
wrote:

> i have recently created new vlan on my Cisco 6509 core
> switch. but the newly created vlan was not learned by
> other switches in the network. i found out that the vtp
> domain name is different. the supervisor engine on the
> 6509 is brought from another network with different vtp
> domain name. the IOS version is  Version 12.1(8a)E5.
> when i try to change the vtp domain name to the right
> one, even i don't have the option to set from the
> command line. from the global configuration mode,...

Well, 2 things that really stand out:

	- Upgrade your IOS version; what you have is very
	  old, unless your supervisor module is ancient too.

	- Don't use VTP, it causes more problems than it
	  solves. Your scenario is typical, where a
	  different switch (supervisor module, in your case)
	  is introduced into the network.

Cheers,

Mark.
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