Tag: domain mismatch
Common Cisco VTP Troubleshooting Issues,CCNA
Common Cisco VTP Troubleshooting Issues
1- Different domain. A switch must has the same domain name in order to participate
Example
S1(config)#vtp domain NOukgoodbye
Changing VTP domain name from ukgoodbye to NOukgoodbye
S1(config)#vtp mode cl01:06:12 %DTP-5-DOMAINMISMATCH: Unable to perform trunk negotiation on port Fa0/24 because of VTP domain mismatch.
i01:06:13 %DTP-5-DOMAINMISMATCH: Unable to perform trunk negotiation on port Fa0/2 because of VTP domain mismatch.
2- Trunk between the switches,
The VLAN Trunking protocol, is Cisco proprietary protocol, as its name says “Trunking”
VLAN Trunking protocol
To be a trunk to be form between two switches is required
Switch 1 | Switch 2 | |
Dynamic auto | – | Dynamic Desirable |
Dynamic Desirable | – | Dynamic Desirable |
Trunk | – | Dynamic Desirable |
Trunk | – | Trunk |
3- VTP version
4- VTP password