Troubleshooting VTP Configurations
Troubleshooting VTP Connectivity
In the following page(s), we will learn about common VTP configuration problems and how to solve them. Listed below are some of the common VTP configuration issues that we will be looking at on this page(s).
Common VTP configuration issues
1. Incompatible VTP Versions
2. VTP password configuration errors
3. Incorrect configured VTP mode name
4. All switches set to VTP client mode
1. Incompatible VTP Versions
VTP versions 1 and 2 are incompatible with each other. Switches that only support version 1 cannot participate in the VTP domain along with version 2 switches. If your network contains switches that support only version 1, you need to manually configure the version 2 switches to operate in version 1 mode.
e.g.
SW2#config t
SW2(config)#vtp version 2
SW2(config)#end
Summary:
Incompatible VTP versions
· VTP versions 1 and 2 are incompatible with each other
· Make sure all switches are running the same VTP versions
2. VTP Password Issues
When using a VTP password to enable membership in the VTP domain, make sure that the password is set correctly on all switches in the VTP domain. If a password is used, it must be configured on each switch in the domain. Cisco switches do not use a VTP password by default.
e.g.
SW2#config t
SW2(config)#vtp password cisco
SW2(config)#end
Summary:
VTP password Problems
* Verify that passwords are all the same on all VTP enabled switches in the VTP domain
* Cisco switches does not use VTP passwords by default
