Configure the switch with a VTP domain name of ‘CisCo’. That is without manually configure 'vtp mode server' and 'vtp domain MyVtpDomain' At one site they plugged in a Cisco switch with VTP mode server and a VTP domain configured to a trunk port in a C9500 running 16. dat file. VTPPruning works when there is aLAN interface. Hi Cap, by default domain 1 vlan users cannot able to communicate domain 2 vlan users as the domain name varies, since you specified the ip route command saying that domain 2 vlan users should access internet which is connected in domain 1 vlan, it works, but if u specify like that domain 1 vlan users can communicate domain 2 vlan. فكرة هذه الخدمة هي أن تقوم بتنظيم جميع السويتشات تحت نطاق واحد بأسم نطاق معين و تفيد ايضاً عندما نقوم بعمل اكثر من شبكة و تكون هذه الشبكة تم عملها على أكثر من سويتش في نفس الشبكة و نفس النطاق سنقوم بتفعيل. In VTP Versions 1 and 2, the VTP mode must be transparent for VTP and VLAN information to be saved in the running configuration file. This locally configured VTP information is overwritten by the configuration that it later receives from the VTP server. You make global VLAN configuration changes for the domain using either the command-line interface (CLI) or Simple Network. 1400 1 stp7VTP Domain Name : vtp. Share. ; All network devices in a VTP. The second method involved is manually pruning VLANs. The Dynamic Map highlights VTP roles, VTP server, VTP client, VTP transparent; and VTP domain name, VTP mode, VTP running version, configuration version, and VTP pruning mode are embedded as device-level data tables. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. Before adding a VTP client switch to a VTP domain, always verify that its VTP configuration revision number is lower than the configuration revision number of the other switches in the VTP domain. Chinese;Hello, I've just gone to a site an they have setup VTP on their switches and are having VTP mismatch errors, I can see why as they domain names are all wrong. The configuration revision is still the same in the rest of the clients, even if the server crashes. . ; Before installing a redundant supervisor engine, enter the no vtp file command to return to the default configuration. (Optional) Verify that the domain name is the same as in Step 1 and that the configuration revision number is 0. By default, the switch is in the VTP. An administrator adds a new VLAN definition. I was wondering if this is a feature (i. A VTP domain defines the boundary of a particular VLAN. Switches share VTP information only inside the domain. switch (config)# vtp password cisco. Eg: all switches in VTP domain cisco, will be updated on VLANs created or deleted on any switches (VTP server), within that VTP domain. Depending on the role, switches functionalities are different. Port Mode Encapsulation Status Native vlan. The 6509's as the servers and all other switches as clients. domain. Your Domain name will be removed. All switches have the same the VTP domain name,. 1400 1 stp7Sure, it can be deactivated. Edited February 16, 2020 at 4:48 AM How many ways to delete vtp domain name? I try to search for way to delete vtp domain name. Stores the VTP configuration in a file. Recall that three VTP modes exist – server, client, and transparent mode. Before adding a used switch to a VTP domain, either delete the VLAN. OR. Yes. Usualy if run in transparent mode the local VLANs are only local to that switch and not part of VTP domain. When Cisco implemented VTP, they left a "null" value for exactly this reason. Of course, one would assume incorrectly. 02-19-2003 02:43 PM. (E. by doing step 1) it will set the revision number to 0. Now I find only this way to delete (delete vlan. VTP is a Layer 2 messaging protocol that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of VLANs within a VTP domain. Switch (config)#vtp mode transparent. A VTP domain is made up of one or more interconnected network devices that share the same VTP domain name. Some of our sites have VTP Domain. On Client switch # vlan database # vtp password newpwd exit exit. Download the VTP database from the VTP server in the new domain. Also,. This is incredibly. VTP V3 adds the mode. Devices in a VTP domain always use the VLAN configurationof the device with the highest VTP configurationrevision number. We are building another new site and it will use the same VTP domain with the same setup - VTP server stack with multiple VTP client. A switch can be configured only in one VLAN Trunking Protocol (VTP) domain. . Step 33. load the boot loader from ROM. Alternatively, you can reload the switch, as the VTP primary server state is a runtime state, but reloading the switch is probably a bit drastic just for that. Also when you are in server mode, you can still have no config for the domain name if you did not have any and you were in transparent mode before: NMS-CAT6K-B (config)#vtp mode. dat file and config. The vtp mode transparent command disables VTP from the domain but does not remove the domain from the device. One switch is acting as a VTP server and others are VTP clients. SW1 and SW2 start out knowing about VLAN 2 as a side-effect of the switchport access vlan 2 commands on each. 1400=00d0. VTP pruning is a global command and affects all the switches in the VTP domain. Step 1 – Creating a VTP Server. If you are using VTP transparent mode then the vlan information is also stored in the running config as well. This command is optional for modes other than server mode. Remove the vlan. Switch_1#conf t Switch_1(config)#vtp domain yourdomain Switch_1(config)#vtp mode server Switch_1(config)#vtp password yourpassword Switch_1(config)#vtp version 2 . Remove Ports or VLANs. 0 Helpful. dat file in the flash. I currently have VTP running on my network. Uses the no keyword to remove the password. VTP is a Cisco proprietary protocol which is used to exchange VLAN information. VTP version 3 differs from earlier VTP versions in that it does not directly handle VLANs. Guidelines and Limitations for VTPIf the device is in VTP server or VTP transparent mode, you can add, modify or remove configurations for VLANs 2 to 1001 in the VLAN database. 1. Highest database revision number, for the VTP domain, is considered the "best" for VLAN definitions. Switch_IOS(config-if)#private-vlan mapping add secondary_vlan_list or Switch_IOS(config-if)#private-vlan mapping remove secondary_vlan_list; Note: For Catalyst 6500/6000 switches with MSFC, ensure that the port from the Supervisor Engine to the. HTH. trunk port) switchport trunk encapsulation dot1q switchport mode trunk switchport nonegotiate Step 9. VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates VLAN’s on the whole local segments participating in the VTP domain. The switchport trunk pruning vlan command can be used to set up VTP pruning. VTP Version : 1. ; All network devices in a VTP. Here are few methods from my side which I can think of: 1- Implement VTP in inital stage and configure all the required VLAN which you want to be availabe all the side and then change it to transparent . dat and reload. All switches operating in VTP server or client mode under the same administrative responsibility must be configured with the same domain name. A VTP domain (also called a VLAN management domain) is made up of one or more network devices that share the same VTP domain name and that are interconnected with trunks. Switch#show vlan briefI have 2980 switch running 6. 06-10-2020 05:41 AM. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. A switch in off VTP off mode functions the same as a VTP transparent device except that it does not forward VTP advertisements on trunk ports. If I reload the server switch, somehow the switch would grab all the vlan information from a VTP client switch and all the vlans are restored. EEEE. All vlans are still active. It does its work if one knows what is to be done and howto use it. The name argument can be a string or an integer. This section provides some guidelines for the configuration of VTP in the network. If you turn it off on one of your VTP servers, then that change gets propagated. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. VTP server. In VTP Versions 1 and 2, the VTP mode must be transparent for VTP and VLAN information to be saved in the running configuration file. The pruning-eligibility configuration applies globally to all trunks on the switch. Once this is done the VTP client switch would learn the VLANs dynamically from the VTP Server and then you could assign the ports on the client switch to whatever VLAN you want to assign to. 1 - No DTP is a different protocol to vtp. vtp mode. All devices in a VTP domain must have the same domain name, but they do not need to run the same VTP version. the link between the switches has to be a trunk link. By default, the switch is in VTP no-management-domain state until it receives an advertisement for a domain over a trunk link or until you configure a domain name. Received VTP updates will be processed and forwarded. This is because the VTP domain name (just the name) is also carried in the DTP packet. If you are running the VTPv1 or VTPv2, this command will show you the password in cleartext form. You can configure up to 4049 VLANs on the device. Each VTP domain must have at. Generally maintaining VLANs via VTP, in a larger L2 topology, is simpler with VTP. A network device can be configured to be in only one VTP domain. load the IOS. 따라서 모든 위치에서 동일한 VLAN을 설정할 필요가 없습니다. First we will try to enable VTP version 3 on one of our switches: SW1 (config)#vtp version 3 Cannot set the version to 3 because domain name is not configured. : D. They ignore messages received from other domains. If you really need to clear the VTP domain name, you could try to move the switch into transparent mode, download the running config into your PC, remove the. Each network device can be in only one VTP domain. This is the default mode, but the switch does not send advertisements until a domain name is configured. VTP minimizes misconfigurations and configuration inconsistencies that can result in a number of problems, such as duplicate VLAN names, incorrect VLAN-type specifications. Note You cannot clear the domain name. Quand vous configurez un nouveau VLAN sur un serveur VTP, le VLAN est distribué par tous les commutateurs dans le domaine. 1(1),VTPissupportedinthesemodes: •Transparent—AllowsyoutorelayallVTPprotocolpacketsthatitreceivesonatrunkporttoallotherEdison, What about "switchport nonegotiate" and "switchport mode trunk" on the trunks going to the third-party switch in order to make the trunk come up? Of course we then have to make sure that the third-party switch have the right VLANs configured and allowed on the trunk port towards the two Cisc. Step 3 end: Return to privileged EXEC mode. You make global VLAN configuration changes for the domain. What VLAN Trunk Protocol (VTP) domain name and VTP mode to use on this switch. I am attempting to remove VTP from the network and running into a problem where DHCP for wireless access points themselves is failing whenever I try. Which ports on the switch belong to which VLAN. Reboot the switch. VTP sends messages between trunked switches to maintain VLANs on these switches in order to properly trunk. To delete the SVI interfaces do. Switch (config)#no vtp pruning. The configuration shows commands entered by a network administrator for inter-VLAN routing. This VTP server sends an advertisement, across the domain, every 5 minutes or whenever a change is made in the VLAN database. A quick test to prove it. In the server mode, we can add, remove and edit VLAN. A write erase does remove the vtp information. Here is example code: SW1 (config)#vtp mode client. Each device can be in one VTP domain, Layer 2 trunk interfaces, and Layer 2 port channels. The VTP Domain. If you. This command is optional for modes other than server mode. highest revision number and the onl VTP server in the VTP domain. A L3 routed link is not part of vlans so it is not advertised by VTP in this way you could have your "private vlan". In addition to what Soroush already said, usually when you configure a switch in transparent mode you don't want to be part of VTP domain, so you don't configure domain name, password , etc. VTP information is received and propagated to the other switches in the domain. Different VTP domains cannot communicate. Port Vlans allowed and active in management domain. Fa0/24 1-4094. You can change the vtp mode with the command "vtp mode server" Best regards! Expand Post. It only needs to be configured on one switch. To remove (config)#no vlan xxx . A switch can be in only one VTP domain. By default, VLANs 2 through 1000 are eligible for pruning. vtp mode server. some options: ensure you still have another VTP server if so you can change mode to VTP transparent on device that needs this vlan. With it, you need to add or remove VLAN information only on the VTP Server. This question is very similar to this other question: Whats the difference between VTP and DTP. If its a new switch like 2960,3560,3750, please go to config mode and delete the vlan. By default, a Catalyst switch is in the no-management-domain (or null domain) state until it is configured with a domain or receives an advertisement for a domain over a trunk link. This goes against my understanding of VTP. 8. If you have a switch operates in VTP client mode, then you can disconnect the switch of the VTP domain and reload, after reload, the vlan database won't have the 20 vlans. These VTP domains are a set of trunked switches with a similar VTP. This is simply how VTP operates. Port Vlans in spanning tree forwarding state and not pruned. If you require communication between VLANs, you must use a Layer 3 routing device, such as an external Cisco router or an internal router module. Because VLAN IDs 1 to 1005 are global in the VTP domain and can be defined on other network devices in the VTP domain, you can use only extended range VLANs with subinterfaces in VTP client or server mode. Le protocole de jonction VLAN (VTP) réduit la gestion dans un réseau commuté. Right-click the VTP Domain or the device, and select Display View. HTH. g. VTP advertisements can be sent over 802. A VTP server switch will propagate VLAN changes. I think i just can set all switches to VTP Server mode BUT i'm not sure. You can use it only to rename the file in which the existing database is stored. Step 4 Testing VTP. When you enter the vlan vlan-id command, a new VLAN is created with all default parameters and causes the CLI to enter VLAN configuration mode. vtp domain barney vtp pruning SW3:! no commands. nxos. So I have to delete vlans one by one on the VTP server switch using command "no vlan 10", "no vlan 20. The vtp configuration command is used to configure VTP characteristics for a switch. First we will try to enable VTP version 3 on one of our switches: SW1 (config)#vtp version 3 Cannot set the version to 3 because domain name is not configured. A VTP domain is a group of switches that share. If the device is in VTP server or VTP transparent mode, you can add, modify or remove configurations for VLANs 2 to 1001 in the VLAN database. 03-17-2004 01:16 AM. VTP server mode requires a domain name. I do not see any issue here, remove VTP from environment. Because VLAN IDs 1 to 1005 are global in the VTP domain and can be defined on other network devices in the VTP domain, you can use only extended range VLANs with subinterfaces in VTP client or server mode. You use the interface configuration command mode to define the port membership mode and add and remove ports from a VLAN. ). 00b8. I lose connectivity only when I remove the 3750X from the VTP domain. This command is required only if the Catalyst switch is in a VTP domain. Not sure what you mean by you want it to be in vlan 13 and you have set a mangement address on port gi0/24. In VTP Versions 1 and 2, the VTP mode must be transparent for VTP and VLAN information to be saved in the running configuration file. A VTP version 2-capable device can operate in the same VTP domain as a device running VTP version 1 if version 2 is disabled on the version 2-capable device (version 2 is disabled by default). e: creating Vlans) to forward the required Vlans as a transit L2 device. In this Cisco CCNA training tutorial, you’ll learn about Cisco VLAN Trunking Protocol (VTP) which enables the deletion, renaming, and addition of VLANs on switches configured as VTP servers. Also, you can also try to add and remove a dummy VLAN also. As a precaution, set the VTP clients to transparent first, then the active server. This disables VTP from the domain, but does not remove the domain from the switch. I did not know that. VTP servers advertise their VLAN configurations to other devices in the same VTP domain and synchronize their VLAN configurations with other devices based on advertisements. In an. VTP pruning is a domain wide configuration. If you run "show interface trunk" and scroll to the bottom of the output, you should see a section. 1. If state=absent and vtp_password is provided, the proposed vtp_password has to match the existing one in. The command "del vlan. Switches in a VTP domain always use the VLAN configuration of the switch with the highest VTP configuration revision number. 1. For VTP pruning to be effective, all devices in the management domain must either support VTP pruning or, on devices that do not. But if vlan 950 isn't coming up on a port trunk or access then the interface vlan is probably in a down state. The issue is the 3rd party switch additional configuration (i. When you configure a new VLAN on one VTP server, the VLAN is distributed through all switches in the domain. The point is to make you understand how DTP. This will revert the revision number to 0 and when added to the network will. Introduction This document describes how to configure a new VLAN on one VTP server and distribute it through all switches on the domain. The second command defines the VTP mode of the switch. – Ricky Nov 23, 2014 at 1:10 Add a comment 2 Answers Sorted by: 9 In theory,. Example: Device(config)# vtp mode server: Configures Switch A as the VTP server. Uses the no keyword to remove the password. 1) Demote the switch that is the current vtp server and running vtp version1 to transparent mode. You use the interface configuration command mode to define the port membership mode and add and remove ports from a VLAN. consider the use of a routed link to an external switch. Background Information. Like Liked Unlike Reply. no int vlan XXX. In example below the vtp domain is called example. To configure a switch as a VTP server, use the vtp mode server global configuration command. In order to remove ports from the VLAN, issue the no switchport access vlan vlan_number command in interface configuration mode. Log In. dat you would erase all your configured vlans on the switch if it is on server or transparent mode, and this would be harmful. dat files do not match, the switch uses the configuration in the vlan. Similarly, if you want to remove one of the vlans from the trunk (let’s say vlan 2), you can do so as following: switchport trunk allowed vlan remove 2. Is there a way to remove the VTP domain name on an IOS-based Catalyst switch without resetting? In 'vlan database' mode I have tried the following which do NOT. switch (config)# vtp mode server. I have read everywhere that deleting vlan. VTP는 대부분의 Cisco Catalyst Series 제품에서. ). See the “Adding a VTP Client Switch to a VTP Domain. Edited by Admin February 16, 2020 at 3:52 AM. Beginning with Release 5. show vtp status. A switch can be in only one VTP domain. Francois, Thanks very much for the detailed answer. vtp mode. Like Liked Unlike Reply. After using the command erase startup-config and reloading the switch, the administrator finds that VLANs 10 and 100 still exist on the switch. The Catalyst 3850 configuration also has a default route for. The VTP server is where you would create, remove, or modify VLANs. Mel. VTP with all switches in same domain will propagate information about the VLAN existing in the domain, to all members of the domain. • Do not enable VTP version 2 on a switch unless all of the switches in the same VTP domain are version-2-capable. This example shows how to configure a VTP password: Switch#vtp password WATER Setting device VLAN. vtp domain test (Defines the VTP domain, all switches in the domain will receive these VTP updates. The name can be 1 to 32 characters. VTP server. What should the network administrator do to ensure the new switch exchanges VTP information with the other switches in the VTP domain? Configure the correct VTP domain name and password on the new switch. 2. " line from the file manually and upload the modified file to the switch startup config. Fa0/24 1. A network device can be configured to be in only one VTP domain. If you don’t require vtp pruning feature in the network, configure no command no vtp pruning for the switches. . If the VTP mode or domain name in the startup configuration does not match the VLAN database, the domain name and VTP mode and configuration for the VLAN IDs 1 to 1005 use the VLAN database information. All switches under a VTP domain. Delete vlan. VTP servers advertise their VLAN configuration to other switches in the same VTP domain and synchronize their VLAN configuration with other switches based on messages received over trunk links. Note disabling is actually done by setting to transparent mode " set vtp domain domain name mode transparent" the switch then does not act on. vtp domain ONE. dat. Hi Friend, You cannot completly remove the VTP configuration from the switch. I usually set the above filter, and then allow pruning to remove any vlan that is included in the above range (thus maintaing the desired security), but not effectively used. 따라서 모든 위치에서 동일한 VLAN을 설정할 필요가 없습니다. To restore a IOS switch to a "whole new" state, it is necessary to clear even the "VTP domain" string to null. All devices operating in VTP server or client mode under the same administrative responsibility must be configured with the same domain name. If the switch has a trunk connection to a VTP domain, the switch learns the domain name from the VTP server in the domain. VLANs can be created in a standalone fashion, or using VLAN Trunk Protocol (VTP). To add (config)# vlan xxx (config-vlan)# name XXX. Step 3 – Configure native and trunking VLAN. When I checked, the C9500 was now in VTP server mode, with an old (discontinued). SW1# configure terminal. Ensure that all switch. Usage Guidelines. Is it possible to setup multiple VTP Domains (seperate domain. VTP는 스위치드 네트워크에서 관리를 줄입니다. VTP servers in the network. dat file in the flash. execute POST. You cannot create, change, or delete VLANs on a VTP client. When VTP pruning is enabled on a VTP server, pruning is enabled for the entire management domain. VTP is the mechanism it uses to populate the vlan. When you enable version 2 on a switch, all of the version-2-capable switches in the domain enable version 2. 2. Backup and Restore the vlan. 8. See Adding a VTP Client Switch to a VTP Domain, page 323 for the procedure for verifying and resetting the VTP configuration revision number. You can also change the VTP domain name by entering the vlan database privileged EXEC command to enter VLAN configuration mode and by entering the vtp domain domain-name command. Remove the VTP domain name from all switches with ―null‖ and then replace it with the new domain name. But what I haven't seen mentioned here (though I could be mistaken) is the fact that designs commonly remove the NEED for VTP. Best to turn off dtp as well as vtp. •- Change the VTP domain name to another TEST. dat file will remove the vtp setting to default. 0/24. The VLAN database is stored in the file "vlan. 2SX release of this train depends on your feature set, platform, and platform hardware. VTP Server automatically propagates the new VLAN information, via VTP messages, to all of the other switches in the network. We are planning to remove VTP from a production network that has RPVST running. " line from the file manually and upload the modified file to the switch startup config. You can also change the VTP domain name by entering the vlan database privileged EXEC command to enter VLAN configuration mode and by entering the vtp domain domain-name command. Setting device to VTP Server mode for VLANS. no vtp domain < domain name > command does not work on 7609 will try in some other switch and update. 6-4: VLAN Trunking Protocol. Making VLANs pruning-eligible or pruning-ineligible affects pruning eligibility for those VLANs on that trunk only (not on. . We cover VTP pruning in our Cisco CCNA certification training course. Server—In VTP server mode, you can create, modify, and delete VLANs and specify other configuration parameters (such as VTP version and VTP pruning) for the. A VTP domain is defined by all switches that share the same VTP Domain name. VTP domain is a collection of switches set with the same VTP domain string. It's also a good practice to ensure that the VTP passwords (if set) are different for the two sites to prevent any accidental mixing of VLAN databases. And YES it is possible to communicate to different vtp domains, but not as a vtp domains, but as a different network, what you can do is just route the packets to other vtp network. Enter global configuration mode. You can enter the vlan-range using a comma. † Before you can create a VLAN, the switch must be in VTP server mode or VTP transparent mode. Layer 2 trunk interfaces, Layer 2 port channels, and virtual port channels (vPCs) support VTP functionality. Vtp information is used during dtp between switches and if the configuration does not match the trunk won't form. How do you enable VTP pruning mode? The “set vtp pruning enable” command can be used to enable or disabled VTP Pruning. Note You cannot clear the. 3. The VLAN Trunking Protocol (VTP) is organized into management domains. I’m just confused why they design it this way2-4. 5. The other switches are all VTP clients and have successfully. Step 3 All devices in a VTP domain must have the same domain name, but they do not need to run the same VTP version. It should be deactivated throughout the entire VTP domain but I would suggest making sure that each switch reports the VTP pruning as being off in the show. Step 4. vtp domain "domain name" vtp version 3 vtp mode off int g1/1/1 (e. A VTP domain is made up of one or more interconnected network devices that share the same VTP domain name. VLANs cannot be configured locally on a VTP client. One of which from reading other posts, I. Remove the Vlan . A VTP domain is made up of one or more interconnected network devices that share the same VTP domain name. In VTP Versions 1 and 2, the VTP mode must be transparent for VTP and VLAN information to be saved in the running configuration file. 2) Deleting the switch Vlans. • If the VTP mode or domain name in the startup configuration does not match the VLAN database, the domain name and VTP mode and configuration for the first 1005 VLANs. Chapter 13 Configuring VLANs, VTP, and VMPS VLANs Note When the switch boots, if the VTP domain name and VTP mode in the startup-config and vlan. This VTP server sends an advertisement, across the domain, every 5 minutes or whenever a change is made in the VLAN database. dat files do not match, the switch uses the configuration in the vlan. A switch can be in only one VTP domain. For information on configuring VTP, see Chapter 22, “VLAN Trunking Protocol (VTP). SW1 (config)# vtp domain CISCO. Options. Switch. Changing the VTP domain name always resets the revision number to 0. dat file. set vtp domain abcd1 Please, let me know if there is any command available with out clearing all the configuration. Having two VTP servers is not a problem at all. Three types of VTP. Yes its true, it will remove all the VLAN information. Which ports on the switch belong to which VLAN. I'd avoid transparent unless specifically necessary, and simply remove VTP if you don't like the functionality. text, and write erase the system configure, 3, reload the device, copy the configuration back to your system, and don't forget change the vtp mode back to the original mode. Router(config-if)# mls rp vtp-domain [domain-name] Selects the router interface to be Layer 3 switched and then adds that interface to the same VLAN Trunking Protocol (VTP) domain as the switch. A network device can be configured to be in only one VTP domain. Step 6: show vtp status. VTP propagates the VLAN information to all switches in the VTP domain. dat file, especially for the VTP server systems. network 10. 2) Manually add all the current vlans running in your vtp domain to this switch. 1400=00d0. All switches in the same VTP domain will share the same VTP domain name and VTP password, if one is configured. Now i need completely remove VTP from my network without stopping network traffic and tearing network connectivity. VLANs created or deleted in one domain won't be propagated to the other and VLANs that exist in both domains still pass traffic as expected. VTP is a Cisco proprietary method of managing VLANs between switches and runs across any type of trunking mechanism. VTP server is the default mode. Change switch to VTP Server and remove password from VTP domain. If you add a switch that has a revision number higher than the revision number in the VTP domain, it can erase all VLAN information from the VTP server and VTP domain. 3 - In vtp 3 only the vtp server set as primary can change vtp database. This VTP server sends an advertisement, across the domain, every 5 minutes or whenever a change is made in the VLAN database. Edited February 16, 2020 at 4:48 AM How many ways to delete vtp domain name? I try to search for way to delete vtp domain name.