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Which VLAN number is never eligible for VTP pruning?
VLAN 1
VLAN 1 is never pruning eligible, because it is a factory-default VLAN. VLANs 1002 to 1005 are reserved for token ring networks. The VLANs 1006 and above require VTP version 3 to be pruning eligible.
In which VTP mode we can’t add and delete VLAN?
VTP client mode – a switch using this mode can’t change its VLAN configuration. That means that a VTP client switch cannot create or delete VLANs. However, received VTP updates are processed and forwarded. VTP server mode – a switch using this mode can create and delete VLANs.
What happens when pruning is enabled on a VTP server?
When VTP pruning is enabled on a VTP server, pruning is enabled for the entire management domain. Making VLANs pruning-eligible or pruning-ineligible affects pruning eligibility for those VLANs on that trunk only (not on all switches in the VTP domain).
How does VTP reduce administration in a switched network?
VLAN Trunk Protocol (VTP) reduces administration in a switched network. When you configure a new VLAN on one VTP server, the VLAN is distributed through all switches in the domain. This reduces the need to configure the same VLAN everywhere. VTP is a Cisco-proprietary protocol that is available on most of the Cisco Catalyst series products.
How to understand the VLAN trunk Protocol ( VTP )?
Understanding VLAN Trunk Protocol (VTP) 1 Introduction. VLAN Trunk Protocol (VTP) reduces administration in a switched network. 2 Prerequisites. There are no specific requirements for this document. 3 Understand VTP. Note: This document does not cover VTP Version 3. 4 Other VTP Options. 5 Use VTP in a Network.
Is it good to change the revision number of a VTP switch?
Every new switch (or moved switch) gets the vlan.dat file wiped and put in transparent mode. Once the switch is on the network, I configure it to join the VTP domain live. ALWAYS do a sh vtp status to find the revision number. As long as it’s lower than the other switches it’s good. If it’s higher, changing the domain name resets it.