What is VTP VLAN pruning?
VLAN Trunking Protocol (VTP) pruning is a feature in Cisco switches, which stops VLAN update information traffic from being sent down trunk links if the updates are not needed. If the VLAN traffic is needed later, VLAN Trunking Protocol (VTP) will dynamically add the VLAN back to the trunk link.
How do I enable VTP pruning?
Note: VTP Pruning is disabled by default on all Cisco Catalyst switches and can be enabled by issuing the “set vtp pruning enable” command. If this command is issued on the VTP Server(s) of your network, then pruning is enabled for the entire management domain.
What is difference between VTP version 1 and 2?
In VTP V1, the only time a transparent mode switch will forward advertisements is when the version and domain name match (highly unlikely). In VTP v2, advertisements are forwarded regardless of the version number.
What is the difference between pruning and dropout?
Dropout drops certain activations stochastically (i.e. a new random subset of them for any data passing through the model). Typically this is undone after training (although there is a whole theory about test-time-dropout). Pruning drops certain weights, i.e. permanently drops some parts deemed “uninteresting”.
What is pruned trunk?
VTP pruning allows the switch to not forward user traffic for VLANs that are not active on a remote switch. This feature dynamically prunes unneeded traffic across trunk links. If the VLAN traffic is needed at a later date, VTP will dynamically add the VLAN back to the trunk.
What is pruning a model?
Pruning is one model compression technique that allows the model to be optimized for real-time inference for resource-constrained devices. It was shown that large-sparse models often outperform small-dense models across various different architectures.
Why is pruning necessary in machine learning?
The necessity of pruning on one hand is that it saves time and resources while on the other hand is essential for the execution of the model in low-end devices such as mobile and other edge devices.
Which of the following VLANs can be pruned by VTP on a 802.1 Q trunk?
Extended-range VLANs (VLAN IDs higher than 1005) are also pruning-ineligible. Therefore VTP pruning can be applied only from VLAN 2 to 1001.
Which VLANs are pruning eligible?
By default, VLANs 2 – 1001 are pruning eligible, but VLAN 1 can’t be pruned because it’s an administrative VLAN. Both VTP versions 1 and 2 support pruning. To enable VTP pruning on a Cisco IOS switch, you use the vtp pruning VLAN configuration command.
How do I enable VTP pruning on a Cisco IOS switch?
To enable VTP pruning on a Cisco IOS switch, use the VTP VLAN pruning configuration command. Once VTP pruning is enabled, you can optionally configure a prune eligible list if you want to limit the VLANs that can be pruned. A scenario will help understand the concept of VTP pruning in a more detailed way.
What is the use of VLAN Trunking Protocol?
VLAN Trunking Protocol (VTP) is used to communicate VLAN information between switches in the same VTP domain. VLAN Trunking Protocol (VTP) pruning is a feature in Cisco switches, which stops VLAN update information traffic from being sent down trunk links if the updates are not needed.
Why is VTP pruning not forwarding traffic from switch 1?
However, when VTP pruning is enabled, the broadcast traffic from Switch 1 is not forwarded to Switches 3, 5, and 6 because traffic for VLAN 2 has been pruned (port on Switch 2 connecting switch 3 and port on Switch 1 connecting switch 5).