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Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions. All rights reserved. Overview Pearson Education, Inc. Would you introduce a switch in your production without checking the configuration first? Changing the revision number to a switch is as easy as changing the name of the VTP domain to something like "Null" and then changing it back.
Funny I was at a job interview the other day and was ask what is the best practice for VTP. I answered don't use it. Would I add a switch without checking the config? No, of course not. But I'm not the only one with access to wall jacks.
Yes I have enabled good security but with physical access almost anything is possible. Ok, I got confused for a sec there. Just to clarify, and I want to refer the link I posted before. You can check the status of the VTP using the show vtp status command and you will see if pruning is enabled for the domain.
This is a good reference for people using VTP:. Putting an IP address on each end of the L2 link makes it L3, now you no longer have to worry about making simple changes to VLANs on a trunk and now have to do routing, and will need to move the VLANs SVIs down to the access layer, instead of efficiently keeping them at a Core layer.
So eliminate layer 2 issues by making the links Layer 3? Therefore moving issues up the OSI stack and face more difficult ones I wish I was also a rocket scientist, was the training hard?
Unless you loop your switches, you're not going to have a STP issue, the OP appears to be referring to a single trunk, this is not an issue. I've not worked on a production network that uses VTP because of the issues it can cause and that you need to protect your system as much as you can. Clearly this depends on how you control your environment, if you have complete and utter control and I've worked on some extremely controlled networks and can say you can't have complete and utter control of your network, one rouge switch brought by someone and you'll have no VLANs!
In particular, the STP domain hop count is not altered nor is the number of logical ports optimized. It is far more efficient. I couldn't agree more with you at the start of your reply. Down the line, not so much, but certainly routing from Building 1 to Building 2 which happens to be next to Bld1?
You have 4 switches, if you add a 5th switch with a fiber link from the new building your ping will be lower to that switch than any other. This is all what it is about, having bandwidth availability, speed and security. He stays right there, if you are doing VTP pruning, you don't want to do transparent mode. What transparent mode is doing, is not even looking at the VTP information received, it's just passing it along. By making changes to a trunk port, you are not chaning VTP information or revision, that's a per switch configuration where you assign ports to VLANs and Trunks.
Now, being all this said, its your decision if you want to make the changes once, or go switch by switch configuring your VLANs. I'm sure there will be an argument that doing the same command at both ends give you belt 'n' braces. In the diagram above if VTP does the pruning then switch A will never see traffic from VLAN's 30, 40, 50, 60, 70 and 80 and of course switches B C and D will never see traffic from , , , , and Job done. Upvote 2 Downvote 0 Reply 0. Take note of the following below: 1.
Make sure you issue the command "Show VTP status" for each switch 2. Take note of the VTP client mode and transparent mode switches. Take note of those VTP server switches that has a highest revision number.
Upvote 1 Downvote 0 Reply 0. From show vtp mode command you will identify the VTP Server switch. Upvote 0 Downvote 0 Reply 0. Its just simple. Answer added by Sajjad Ali 5 years ago.
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