What is the VTP revision number?
What is the VTP revision number?
The configuration revision number is a 32-bit number that indicates the level of revision for a VTP packet. This configuration number is tracked by every switch in order to find that the received information is more recent than the current version.
How do I change my VTP revision number?
Go to the global configuration mode and change the VTP domain name on Cisco Switch. Again change the VTP domain name back to initial domain name. Now check the VTP configuration revision number again with show vtp status command. It will be reset and changed to zero.
What is VTP mode transparent?
The VTP Transparent mode is something between a VTP Server and a VTP Client but does not participate in the VTP Domain. In Transparent mode, you are able to create, modify and delete VLANs on the local switch, without affecting any other switches regardless of the mode they might be in.
What is the difference between VTP version 1 2 and 3?
The main difference between VTP Version 3 and VTP Version 2 is that the version 3 supports extended range VLANs. VTP v2 is almost similar to VTP v1. The only major difference is that VTP V2 supports for Token Ring VLANs. If using Token Ring VLANs, you should enable VTP V2.
Is VLAN a protocol?
VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks (VLAN) on the whole local area network. To do this, VTP carries VLAN information to all the switches in a VTP domain. VTP advertisements can be sent over 802.1Q, and ISL trunks.
How do I delete a VTP database?
To do this, issue the vtp mode transparent command. This changes the config revision number back to 0 and when the current VTP server has a higher revision number then this, the device is updated with the latest VTP information. Refer to Resetting Catalyst Switches to Factory Defaults for more information.
What is the highest VLAN number?
4,094
Under IEEE 802.1Q, the maximum number of VLANs on a given Ethernet network is 4,094 (4,096 values provided by the 12-bit VID field minus reserved values at each end of the range, 0 and 4,095).
What is the valid VLAN number range?
VLAN Ranges
| VLANs | Range | Usage |
|---|---|---|
| 1 | Normal | Cisco default. You can use this VLAN but you cannot delete it. |
| 2-1001 | Normal | For Ethernet VLANs; you can create, use, and delete these VLANs. |
| 1002-1005 | Normal | Cisco defaults for FDDI and Token Ring. You cannot delete VLANs 1002-1005. |
| 1006-4094 | Extended | For Ethernet VLANs only. |
