VTP “Specials”
VTP is a nice tool if you have a larger network with a lot of VLANs and modifications, but it also has its dark sides. Im going to show three different scenarios and how VTP behaves in those, the first two might not be a big suprise, neither the third (cause its written in a warning inside the config guide) but maybe it shows why and how VTP is going to behave in those situations. Im going to start with some copy&paste action (why should I write something by myself if there is already a well written text? 
) from the Cisco Config Guide about VTP and its three modes.
About
Im a network engineer working for an international medical company based in Basel, Switzerland. I began my professional life in 2000 after 4 years of an IT apprenticeship. I started as the Network Management System responsible with quite a lot other of other tasks inside the Cisco networking field. In 2005 I changed to my current employer where I changed my field of knowledge from part NMS part Networking to full time Networking. I also started to educate myself deeper into networking. After passing the CCNA and CCNP exams I wanted to go further with my education and took the CCIE R&S track instead of doing a school with lots of stuff Im not interested in 
I started the CCIE journey in August 2007 with the first of 5 workshops at the Cisco Network Academy in Rapperswil and passed the CCIE in Brussels at 07th of May 2008.
During that time I wrote a lot of documents to keep the stuff I learned and I thought it might be an idea to make it public so it might help other people on their path through the Cisco Certifications. I hope this site gets useful not only for CCIE candidates but also for other networking professionals on their search for knowledge.
If you have any questions or want to contact me, please drop me a line to pashtuk at gmail.com
