VTP - Revision Numbers on transparent switch

VTP - protecting switches from lower revision numbers

VTP revision number maximum

VTP revision number reset


The [VTP](/vtp) revision number is a 32 bit value found in a field of the header of a VTP advertisement.  Initially, its value is zero.  The revision number is incremented by one every time there is a change in the [VLAN](/vlan) configuration on a VTP server.  A VTP client will ignore any VTP updates that have a revision number equal to or smaller than their current revision number.

A VTP revision number cannot be arbitrarily set, but it can be [reset to zero](/vtp-revision-number-reset).  The [maximum value](/vtp-revision-number-maximum) of the revision number is over 4.2 billion.

Links:

https://forum.networklessons.com/t/introduction-to-vtp-vlan-trunking-protocol/870/159?u=lagapides

https://www.cisco.com/c/en/us/support/docs/lan-switching/vtp/10558-21.html

VTP revision number

VLAN Mapping

VLAN SVI status

VLAN Tag

VLAN control frames

VLAN

VLANs - 802.1Q tunneling (QinQ)

VLANs - Dynamic VLAN membership (VMPS)

VLANs - QinQ and CDP

VLANs - Vlans allowed and active in management domain

VLANs - when a tagged frame arrives on an access port

VLANs SVI

VPN - IKEv2 peer address of 0.0.0.0 0.0.0.0

VPN - Interesting Traffic

VPN - NAT Exemption

VPN - crypto keepalive

VPN - default gateway for site to site VPN

VPN - default gateway of VPN client

VPN - split tunneling

VPN DVTI tunnel source

VRF - Definition mode

VRF - VPNv4 address

VRF capability vrf-lite command

VRF lite route leaking

VRF sharing across multiple routers

VRF use cases

VRRP - Virtual IP doesn't respond to pings

VRRP - load balancing

VRRP - support for authentication

VRRP - using the same ID on different interfaces

VRRP - using the same ID on subinterfaces

VRRP on sub-interfaces

VTP - Client can't modify VLANs

VTP - Multiple Servers with VTP version 2

VTP - Per interface configuration

VTP - Versions

VTP - domain name automatically changes

VTP - employing in an emulator

VTP Advertisements

VTP configuration checklist

VTP filtering shared VLANs

VTP how to disable the VLAN trunking protocol

VTP operation over trunks

VTP primary server

VXLAN - Control Plane Options

VXLAN - Use Cases

VXLAN - VLAN to VNI mapping

VXLAN - using an MP-BGP EVN control plane

VXLAN access trunk port

VXLAN

Value of Cisco certifications

Very-high-bit-rate  Digital Subscriber Line (VDSL)

Virtual Private LAN Service (VPLS)

Virtual Private Wire Service (VPWS)

Virtual Router Redundancy Protocol (VRRP)

Virtual Template Configuration

Virtualization functions - definition of terms

VoIP - Anatomy of a voice communication

VoIP - Configuring a switch port for use with an IP phone

VoIP - Voice VLAN

VoIP IP phone registration issues

WAN - edge equipment names and terminology

WAN - how to choose a WAN technology

WAN - what is BVDSL

Wake on LAN

Why do we trust a website certificate

Wide Area Network

Wireless - Aggressive Client Load Balancing

Wireless - CAPWAP tunnel

Wireless - CSMA-CA

Wireless - FlexConnect Mode

Wireless - Light Weight Access Point Protocol (LWAPP)

Wireless - Lightweight Access Point

Wireless - Meraki Management Mode

Wireless - Orthogonal Frequency Division Multiple Access (OFDMA)

Wireless - Real-time and management functions

Wireless - Using GCMP with WPA2 and WPA3

Wireless - WLC authbypass feature

Wireless - WLC trunk connection to core

Wireless - WPA3

Wireless - Wi-Fi 2.4GHz frequency band and channels

Wireless - Wi-Fi 5 GHz frequency bands and channels

Wireless - Wi-Fi 6

Wireless - Wi-Fi 6E (Extended)

Wireless - Wi-Fi IEEE 802.11

Wireless - Wi-Fi Protected Access (WPA)

Wireless - Wired Equivalent Privacy (WEP)

Wireless - Wireless LAN Controller

Wireless - configure a 1941W router with a single subnet on wired and wireless interfaces

Wireless - repeater vs mesh

Wireless - troubleshooting wireless clients on a WLC

Wireless - virtual WLC limitations

Wireless AP FlexConnect mode switchport mode

VTP revision number

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