Questions tagged [vtp]
For questions about the VLAN Trunking Protocol
36 questions
1 vote
1 answer
66 views
Primary VTP server protection
Vtp domain has 1 server: SW-A. SW-A is done version 3 and SW-A# vtp primary. An attacker brings his switch (SW-B) with bigger revision number than primary server and connect it to network. And get all ...
1 vote
1 answer
317 views
VTP transparent mode Switch does not pass user traffic to and from other VTP Switches
Practicing on Packet Tracer, I have a topology of four switches named Switch-A, B, C and D. connected with one another in straight line Switch A has two VLANs (Faculty and Students) and is configured ...
- 11
0 votes
1 answer
110 views
what is the relation between DTP and VTP?
the ideas behind VTP & DTP are different, then why do we need to make sure that the VTP domain on both sides is the same otherwise the DTP will not work?
- 11
0 votes
1 answer
6k views
VTP VLAN configuration not allowed when device is not the primary server for vlan database
I have a VTP server and 4 VTP clients. I wanted to create new VLANs on the VTP server and get the error VTP VLAN configuration not allowed when device is not the primary server for vlan database. The ...
- 89
0 votes
0 answers
271 views
How do I load VLAN database between switches (CISCO 2960)?
I glad for any help on this topic -- netanel
2 votes
2 answers
279 views
How does the VTP Client update it's information if the revision number is equal?
I am new to networking and my questions may be a bit weird. Please correct me if I am wrong. According to what I understand, Client updates it's information with the Server's if the Server's revision ...
0 votes
2 answers
597 views
VTP pruning used in combination with allowed vlan
I have a network on which most of the switches are running VTP client/server mode. Few switches are not yet in that mode - for specific customization or because they simply cannot handle it. Thinking ...
- 170
0 votes
1 answer
601 views
What is the impact of VTP pruning against RSTP topology?
While working on a network using VTP (without pruning yet), I noticed the STP topology (for VLAN 10 let say as an example) was including all switches even the ones not having any interface in the VLAN ...
- 170
0 votes
1 answer
176 views
DHCP server access problem
What will stop a PC from receiving an IP address from a DHCP server? Is it STP, VTP, 802.1Q or DTP? What is the most preferable of these?
- 1
1 vote
2 answers
293 views
How does VTP deal with revision conflict
I was wondering how VTP protocol deals with revision conflict? E.g. VTP clients and servers are up to date with the latest database revision X. Suddenly two VTP servers propagate revision X+1 with ...
- 177
2 votes
1 answer
1k views
VTP does not update VLANs in switch
Switch 1 will be server and Switch 4 will be Client! Switch 1 configuration S1#show run Building configuration... Current configuration : 1451 bytes ! version 16.3.2 no service ...
1 vote
1 answer
895 views
Sharing VTP Info Between two VTP Servers
Im trying to share info between two vtp servers these vtp server are connected using Etherchannel I have configured both on server mode, using the same domain and password, but the right one is not ...
1 vote
1 answer
2k views
Combining VTP versions 2 and 3 in a network
Some of our switches only support VTP Version 2, Can it be used on a simultaneous network of versions 2 and 3 together?
- 11
1 vote
1 answer
991 views
Cisco VTP message ((lowest numbered VLAN interface found)
I have vtp server 6500 and vtp clients N5K all its working fine, except this message (lowest numbered VLAN interface found).. I dont really know if I have to take care on this message I mean its an ...
- 11
1 vote
1 answer
790 views
VTP updates through router!
Can vtp client revisions be updated from another server switch that connect it only through a router? the two switches are in the same domain name
- 430