VTP - Revision Numbers on transparent switch

When using VTP, transparent switches will always have a VTP revision number of zero. Even if several VLANs are added and removed from such a switch, the revision number remains zero, as shown below:

SW1#show vtp status
*Nov  9 06:38:55.759: %SYS-5-CONFIG_I: Configured from console by consoles
VTP Version capable             : 1 to 3
VTP version running             : 2
VTP Domain Name                 : 
VTP Pruning Mode                : Disabled
VTP Traps Generation            : Disabled
Device ID                       : 5254.0006.8000
Configuration last modified by 0.0.0.0 at 11-9-22 06:37:31

Feature VLAN:
--------------
VTP Operating Mode                : Transparent
Maximum VLANs supported locally   : 1005
Number of existing VLANs          : 14
Configuration Revision            : 0
MD5 digest                        : 0xD8 0x87 0x4A 0xF5 0x0D 0x70 0x90 0x91 
                                    0x65 0x54 0x4B 0x9F 0x2A 0xC2 0x95 0xCC 
SW1#

This means that even local changes made do not change the revision number of the transparent switch, nor do any VTP messages that a transparent switch may receive and relay to other switches.

This makes sense, because a revision number has no meaning for a transparent switch from the moment that its VLAN configuration remains completely independent of any other switch on the network.

https://forum.networklessons.com/t/introduction-to-vtp-vlan-trunking-protocol/870/180?u=lagapides

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