This resets the Configuration Revision number to zero ('0'). VTP gets a really bad rap, but the revision number really is the single key value in the whole operation. Default VTP Configuration VTP domain name - Null VTP mode - Server VTP version 2 enable state - Version 2 is disabled VTP password -. 3. To add (config)# vlan xxx (config-vlan)# name XXX. You do not actually need VTP at all to use DTP but if you want VTP to work and you want DTP to work then it is only reasonable that for VTP to work, you need to make sure the VTP domain configuration is consistent on all connected switches. Domain names range from 1 to 32 characters and are case sensitive. 2. This switch is becoming Primary server for vlan feature in the VTP domain VTP Database Conf Switch ID Primary Server Revision System Name VLANDB Yes 00d0. All vlans are still active. 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. Ensure that all switch. 2 - Yes it does. We can modify the whole network from a single switch. Understanding the VTP Domain . Each device can be in one VTP domain, Layer 2 trunk interfaces, and Layer 2 port channels. no vlan 130. Chinese; EN US; French; Japanese; Korean; PortugueseFirstly, let’s start with switch B and set switch B as vtp client mode. 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 . 따라서 모든 위치에서 동일한 VLAN을 설정할 필요가 없습니다. by doing step 1) it will set the revision number to 0. All devices in a VTP domain must have the same domain name, but they do not need to run the same VTP version. 1 - No DTP is a different protocol to vtp. VTP messages are exchanged between switches within a common VTP domain. which means VLAN 2 through VLAN 1005 are eligible for. A VTP server switch will propagate VLAN changes. Let’s discuss different roles in. I plan to do 1 switch stack every week. The vlan. Since Cisco represents the state-of-the-art for networking equipment, one could assume the VTP configuration could be reset by issuing a command such as "clear config vtp". One switch is acting as a VTP server and others are VTP clients. VTP Configuration Guidelines. calculate STP topology; rather Catalyst Switches in "Looped-Area#1" and Catalyst Switches in. Copy the running configuration to a TFTP/SCP server to be able to edit it in a external editor: S1#copy run tftp://192. The VLAN Trunking Protocol (VTP) is organized into management domains. Generally maintaining VLANs via VTP, in a larger L2 topology, is simpler with VTP. I have a lab that consists of 2 - 4503 with SUPII running cat4000-i9s-mz. Remove the VTP domain name from all switches with "null" and then replace it with the new domain name. When I checked, the C9500 was now in VTP server mode, with an old (discontinued). All devices operating in VTP server or client mode under the same administrative responsibility must be configured with the same domain name. 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. Switch(config)#show VTP counters. To restore a IOS switch to a "whole new" state, it is necessary to clear even the "VTP domain" string to null. The device supports VLANs in VTP client, server, and transparent modes. Download your complete 350 page Lab Guide covering everything on the latest CCNA exam here. VLAN Trunking Protocol (VTP) CONFIGURATION. To disable VTP, enter the set vtp domain domain name mode transparent command. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. If you start with the switches that are "servers" this will stop any vlan changes from being propagated via vtp even if other switches are still set as clients. If. VTP server mode requires a domain name. 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. So I have to delete vlans one by one on the VTP server switch using command "no vlan 10", "no vlan 20. Fa0/24 1-4094. Need to add VLAN to switch. The configs for both switches would be: Switch 1 . To better understand the true value of VTP, consider an example network with 100 switches. In example below the vtp domain is called example. ) Step 4: encapsulation dot1q vlan-id [native] Example:. Command or Action Purpose •Secret–Usethiskeywordtodirectlyconfigure the32-characterhexadecimalsecretkey. 1400=00d0. ). Switches in different VTP domains do not. dat" followed by a reload would do it, but now I found that I was NOT quite correct! When a switch is not connected to any other switches, removing "vlan. Switch. All vlans are still active. VTP is a Cisco proprietary method of managing VLANs between switches and runs across any type of trunking mechanism. 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 received over. Best practice is to complete such as change during a change window but changing the vtp mode should not have any impact to STP as long as you're not removing any of the vlans from the trunk interfaces or shuting any active STP trunk interfaces! Also changing the vtp mode to transparent, you vlans wi. A VTP domain is one switch or several interconnected switches sharing the same VTP environment. 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. Use this in combination with cisco. VTP sends messages between trunked switches to maintain VLANs on these switches in order to properly trunk. " line from the file manually and upload the modified file to the switch startup config. Note You cannot clear the. Some of our sites have VTP Domain. VTP advertisements can be sent over 802. VTP propagates the VLAN information to all switches in the VTP domain. The name can be 1 to 32 characters. make sure you already added all the VLAN in Trunk so it should be any issue. (To remove 802. 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. Default VTP Configuration VTP domain name - Null VTP mode - Server VTP version 2 enable state - Version 2 is disabled VTP password - None VTP pruning. I'd avoid transparent unless specifically necessary, and simply remove VTP if you don't like the functionality. The network is composed of 2 6509's running CatOS running ver 6. This reduces the need to configure the same VLAN everywhere. Of course, one would assume incorrectly. so the command to remove the VLAN is switch#delete flash:vlan. Select the correct VTP mode and version. When Cisco implemented VTP, they left a "null" value for exactly this reason. joshuaje1. 3) change this switch vtp version number to 2 and promote back to either server or client mode. I’m just confused why they design it this way2-4. (VTP information goes out over VLAN 1, the default VLAN, which is why you aren't allowed to remove or prune that VLAN from a VLAN trunk link. "Server— Allows you to create, remove, and modify VLANs over the entire network. The VLAN database is stored in the file "vlan. dat file on a switch? It holds the VLAN database. 00b8. vtp domain domain-name. 따라서 모든 위치에서 동일한 VLAN을 설정할 필요가 없습니다. g. If you are using VTP transparent mode then the vlan information is also stored in the running config as well. Uses the no keyword to remove the password. 1, change the vtp domain into transparent mode, copy the configuration into notepad, 2, delete the vlan. When they receive a VTP advertisement over a trunk link, they inherit the domain name and the VTP revision number found in the. See the “Adding a VTP Client Switch to a VTP Domain. dat :) –. 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. exit. Use the format EEEE. show vtp status. domain. 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. If you remove the switch from the VTP domain, then VTP will not be able to update this file and it will remain exactly as it was. Changing a switch's VTP mode to Transparent from Client will not need a reload for it to take effect as the VLAN information is stored in the vlan. Edit the configuration with you favourite editor and remove the unneeded ''vtp domain'' entry. VTP enables the management of VLAN configuration (Vlan addition, deletion, etc. The vtp mode transparent command disables VTP from the domain but does not remove the domain from the device. This section provides some guidelines for the configuration of VTP in the network. load the IOS. This switch is becoming Primary server for vlan feature in the VTP domain VTP Database Conf Switch ID Primary Server Revision System Name. Do not enter the vtp file file_name command on a switch that has a redundant supervisor engine. EN US. Note When the switch boots, if the VTP domain name and VTP mode in the startup-config and vlan. if present, the VTP domain password has to be the same. dat file but that is not a feasible. Solved: Currently our organization has a VTP domain setup at several location. vtp domain domain-name. A network device can be configured to be in only one VTP domain. ip dhcp pool name. Background Information. : D. 2) Reset the VTP counters to allow the switch to synchronize with the other switches in the domain. VTP Configuration Guidelines. Do the following: config t. Its true. VTP transparent switches store the VLAN information in the running-config. SW1 (config)#vtp mode server. EEEE. Vlans allowed on trunk Gi1/0/47 10,70,90 Te1/0/2 1-4094 Port Vlans allowed and active in management domain Gi1/0/47 10,70,90 Port Vlans in spanning tree forwarding state and not pruned Gi1/0/. This command is optional for modes other than server mode. If subsequent VTP messages have a different VTP domain, they will be ignored, because they belong to a different domain. 3 -Finally set VTP servers on transparent mode. Then, let’s change the default domain name from NULL to cisco. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. When adopting more modern. vtp domain TWO. Guidelines and Limitations for VTP If the VTP mode is transparent, VTP and VLAN configurations are also saved in the device running configuration file. network 10. SW1 (config)# vtp domain ipwithease. Reboot the switch. I'd like to remove VTP from the network are there any issues or recommended procedures for d. Ceci réduit la nécessité de configurer le même VLAN partout. A VTP domain is made up of one or more network devices that share the same VTP domain name and that are connected with trunk interfaces. One VTP domain name per switch is allowed. "If I add a VLAN to the Server, it doesn't appear on this Client. Switches operate in any one of these VTP modes: Server Mode --In VTP server mode, can create, modify, and delete VLANs and. A VTP domain defines the boundary of a particular VLAN. Usage Guidelines. Go to solution. Step 3 –. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. 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. The point is to make you understand how DTP. dat File. This VTP server sends an advertisement, across the domain, every 5 minutes or whenever a change is made in the VLAN database. Hello Steve, very good note Best Regards GiuseppeVTP can run in three different modes: Server mode – in server mode you can create, remove and modify VLANs. If all switches in a domain are VTP version 2-capable, you only need to enable VTP version 2 on one switch (using the set vtp v2 enable command); the version number is then propagated to the other version 2-capable switches in the VTP domain. Right-click the VTP Domain or the device, and select Display View. 00b8. Step 1 – Creating a VTP Server. In VTP server mode, you create, modify and delete VLANs and specify other configuration parameters such as the VTP version for the entire VTP domain. trunk port) switchport trunk encapsulation dot1q switchport mode trunk switchport nonegotiateStep 9. The vtp mode transparent command disables VTP from the domain but does not remove the domain from the device. Please rate all posts† Before installing a redundant supervisor engine, enter the no vtp file command to return to the default configuration. System Device# showvtppassword VTP Password:What do i need to do to join the exisiting vtp domain? Will the switch join the domain by itself without any configuration when i do a trunking to the existing switches?(there's no password set for the vtp domain). SW1 (config)#vtp mode server. In short - if you've got 20 vlans, when you go to VTP transparent, you'll still have 20 vlans. "vtp domain. VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks on the whole local area network. Yes, VTP client can forward VTP messages to other switches (transparent, clients and/or servers). A VTP server switch can add, modify and delete VLANs for the whole. Understanding the VTP Domain A VTP domain is made up of one or more interconnected network devices that share the same VTP domain name. EN US. These VTP domains are a set of trunked switches with a similar VTP. 1400 1 stp711-29-2006 02:26 AM. 배경 정보. VLANs cannot be configured locally on a VTP client. VTP Server automatically propagates the new VLAN information, via VTP messages, to all of the other switches in the network. 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. This question is very similar to this other question: Whats the difference between VTP and DTP. or . In the server mode, we can add, remove and edit VLAN. VTP pruning allows a switch to dynamically indicate to a remote switch on the other side of a trunk that the traffic within a [inactive] VLAN not. If you are configuring the switch for VMPS, make sure this domain name matches the one in the VMPS configuration file. dat . Example of how VTP works VTP Domain. VTP with all switches in same domain will propagate information about the VLAN existing in the domain, to all members of the domain. VTP server mode requires a domain name. A network device can be configured to be in only one VTP domain. The vtp configuration command is used to configure VTP characteristics for a switch. " I've seen this once and the only way I've resolved this was to delete the VLAN database, reboot the switch. To verify the VTP mode use: switch# show vtp status. Received VTP updates will be processed and forwarded. By default, Cisco switches do not have a VTP domain name assigned. 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 server. 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. Restrictions for VTP Supervisor engine redundancy does not support nondefault VLAN data filenames or locations. 2) Deleting the switch Vlans. 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 domain (also called a VLAN management domain) consists of one switch or several interconnected switches under the same administrative responsibility sharing the same VTP domain name. 1. VTP Domains: • VTP is organized into management domains or areas with common VLAN requirements • A switch can belong to only one VTP domain • Switches in different domains don’t share the VTP information VTP Modes: Server, Client and Transparent Server: can create, delete, modify and advertise VLAN informationTo join to the VTP domain use the foollowing commands: (config)#vtp mode client --- or server (config)#vtp domain "domainname" --- !case sensitive. VTP pruning removes the unnecessary vlans from the trunk but does not remove the spanning-tree instance that is still running for that vlan. . helen_power: Sorry my question is kinda like I try to find quarrel in a straw. . In Figure 3-15, configurations made to a single VTP server propagate across trunk links to all connected switches in the network in the following manner:. Eg: all switches in VTP domain cisco, will be updated on VLANs created or deleted on any switches (VTP server), within that VTP domain. "Looped-Area#2" should belong to different STP domain. VTP domain is a collection of switches set with the same VTP domain string. One is done dynamically (you enable vtp pruning in the entire vtp domain) while the other is a. So you can configure it back to null domain with "vtp domain NULL "and hit enter. Uses the no keyword to remove the password. That is why I was doing it, but. 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. 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. We are currently using VTP, with a VTP domain, on the core switch in server mode, and the other switches are in client mode. password. VTP information is received and propagated to the other switches in the domain. It will be reset and changed to zero. VTP passes around the VLAN information and the switch stores it in the vlan database. ). Let’s set one and try again: SW1 (config)#vtp domain NWL Changing VTP domain name from NULL to NWL %SW_VLAN-6-VTP_DOMAIN_NAME. when a new, already-running VTP client switch, named Switch11,. Jon. Important VTP components are 1) VTP domain 2) VTP Pruning, 3) VTP Advertisements. Hello, As other friends here have already indicated, you can try to use the show vtp password command in the privileged mode. 1. For future reference, here is how it was done: ON Server Switch # config term # (config) vtp password newpwd # (config) exit. In a network, Different VTP domains are formed. VLAN Trunking Protocol (VTP) is a CISCO-exclusive protocol used to keep the network consistent, or, as the user might put it, to synchronize the VLAN information in the same VTP domain. Repeat these steps on SW1, SW2 and SW3. Best to turn off dtp as well as vtp. VTP pruning is a global command and affects all the switches in the VTP domain. 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). 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. Is there a way to remove VTP from an access switch (VTP client to VTP transparent) while keeping the VLANs on this switch so two trunk ports and all access. For VTP pruning to be effective, all devices in the management domain must either support VTP pruning or, on devices that do not. Having two VTP servers is not a problem at all. Switch(config)# vtp domain domain_name (Optional; for server mode only) Defines the VTP domain name, which can be up to 32 characters long. By default, VTP pruning is disabled. One can reasonably remove VTP for any number of valid reasons. once you enable the VTP pruning by default all the VLANs are prune-eligible except VLAN 1 because it is an administrative VLAN and extended range of VLANs. HTH, jerryFIG 10. Configure the switch with the name of the new management domain. You can reset the revision to number to zero by changing the switch to VTP transparent then changing it back to VTP client mode. A switch with a higher revision number canUse “show vtp status” to determine vtp mode, domain, and version. In VTP server mode, you can create, modify, and delete VLANs, and specify other configuration parameters (such as the VTP version) for the entire VTP domain. The vtp transparent command disables VTP from the domain but does not remove the domain from the switch. VTP server mode requires a domain name. 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. Change switch to VTP Server and remove password from VTP domain. Using VTP may be more convenient, as it will automatically propagate the VLAN configuration to. Example: Device(config)# vtp mode server: Configures Switch A as the VTP server. As soon as a switch joins a VTP domain, it will automatically adopt the most recent VLAN configuration sent out by the. 1 (1), only VTP transparent mode was supported. You should configure the VTP domain before configuring other VTP parameters. † Before you can create a VLAN, the switch must be in VTP server mode or VTP transparent mode. 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. If you need to have communication between VLANs, or if they are isolated. dat file will remove the vtp setting to default. 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. I have a site with a VTP server stack and several VTP client stacks trunked to it with a half dozen vlans in the VTP domain with a password used. set vtp domain abcd1 Please, let me know if there is any command available with out clearing all the configuration. Remove the Vlan . You make global VLAN configuration changes for the domain using either the command-line interface (CLI) or Simple Network Management Protocol. Enterprise customers have used both methods to prune VLANs. I've recently come across the following. To enable VTP, you need to configure the VTP domain and, optionally, the VTP mode and VTP password. dat file in client mode from the updates from the server, in server and transparent. dat file but that is not a feasible soultion. You use the interface configuration command mode to define the port membership mode and add and remove ports from a VLAN. 배경 정보. 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. If state=absent and vtp_password is provided, the proposed vtp_password has to match the existing one in. 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. Reply. 11-02-2020 08:47 AM. You make global VLAN configuration changes for the domain using either the command-line interface (CLI) or Simple Network Management Protocol. It is a good idea to set the VTP mode to "client" if switches are being added to an existing switched network. 8 VTP Domain Name Go to solution vsurresh Beginner Options 03-12-2018 08:22 AM - edited 03-08-2019 02:13 PM Hello experts, Any input from you guys would be. no int vlan XXX. The vtp mode transparent command disables VTP from the domain but does not remove the domain from the device. Here are the two issues that I am having. By default, the VLAN database file name is vlan. So even before any VTP advertisements are exchanged, the VTP domain is contained within the DTP negotiation packets, and this is how devices know if they can form a trunk or not. Without VTP, if you want to create a VLAN on each. Cool. 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 . on vtp domain ONE layer3 switch just use. ) Client/server state in your VTP network 2. VTP version 1, VTP version 2 and VTP version 3 support VTP pruning. VTP is available on most of the Cisco Catalyst Family. This is not a problem in our environment - it's just that another experienced engineer and I were completely focused on accomplishing this minor task and. To see it, go into privileged mode and issue a directory command for flash: The VLAN database is stored in the file "vlan. The name can be 1 to 32 characters. The name can be 1 to 32 characters. 1400=00d0. Switch (config)#vtp mode transparent. 00b8. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. q3) can 2 switches (in VTP server mode) having the same domain and password, updated each other configurations ?. 2. Options. As a precaution, set the VTP clients to transparent first, then the active server. This command is supported in the Cisco IOS Release 12. The vtp mode transparent command disables VTP from the domain but does not remove the domain from the device. Before adding a used switch to a VTP domain, either delete the VLAN. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. 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. To restore a IOS switch to a "whole new" state, it is necessary to clear even the "VTP domain" string to null. Try it in the lab. Used to generate an MD5 hash that is included in VTP updates. CPU register initializations. This disables VTP from the domain, but does not remove the domain from the switch. The only caveat is the VTP Pruning - if you are using it, you must first deactivate it on any VTP Server switch using the no vtp pruning command. Mel. So you need to remove them, do a "copy run start" command, delete the vlan. If the switch is in VTP server or VTP transparent mode, you can add, modify or remove configurations for VLANs 2 to 1001 in the VLAN database. With following steps it will work for sure. This switch is becoming Primary server for vlan feature in the VTP domain VTP Database Conf Switch ID Primary Server Revision System Name VLANDB Yes 00d0. dat files do not match, the switch uses the configuration in the vlan. To delete the SVI interfaces do. It is a good idea to set the VTP mode to "client" if switches are being added to an existing switched network. mydomain. 2(52)SE and later support VTP version 3. Changing the domain name will reset the configuration revision number. The VTP Domain. Depending on the role, switches functionalities are different. . Configuring VTP • FindingFeatureInformation,page1 • PrerequisitesforVTP,page1 • RestrictionsforVTP,page2 • InformationAboutVTP,page2 • HowtoConfigureVTP,page11To fix, I reset the passwords on all switches, then made a VLAN change, which was successfully pushed out. 0. VTP server has been replaced an all other switches in the VTP domain work just fine, except one. . Changing the VTP domain name always resets the revision number to 0. 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. The VTP domain is the same all across. Yes its true, it will remove all the VLAN information. (VLAN IDs 1 and 1002 to 1005 are automatically created and cannot be removed. Like Z0nk said above, VTP should not affect the forwarding of any vlan. VTP with all switches in same domain will propagate information about the VLAN existing in the domain, to all members of the domain. This document provides a sample configuration for Inter VLAN routing with a Catalyst 3850 series switch in a typical network scenario. vtp domain barney vtp pruning SW3:! no commands. Do not enter the vtp file file_name command on a switch that has a redundant supervisor engine. Note: Before you delete the file from NVRAM, it is recommended to make a backup of the file. Now i need completely remove VTP from my network without stopping network traffic and tearing network connectivity. Mark as New; Bookmark; Subscribe; Mute;Step 2 no vlan vlan-id: Remove the VLAN by entering the VLAN ID. 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. Layer 2 trunk interfaces, Layer 2 port channels, and virtual port channels (vPCs) support VTP functionality. VTP v3 must be manually configured, v2 will auto upgrade if it can. The name can be 1 to 32 characters. dat file and reload the switch then. Switches in a VTP domain always use the VLAN configuration of the switch with the highest VTP configuration revision number. 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. Explanation: When adding a new switch to a VTP domain, it is critical to configure the switch with a new domain name, the correct VTP mode, VTP version number, and password. If the Domain Name doesn't match, then - The VTP Server, Client or Transparent (V1) Switch would ignore the Summary Advertisement - The Summary Advertisement wouldn't be flooded through its Trunk Ports(Optional) Specifies the MAC address to remove from the table. You can use the vtp file <filename> command to rename the file. You can enter the vlan-range using a comma.