Enabling Vtp Pruning - Cisco Catalyst 2960 series Configuration Manual

Enabling VTP Pruning

Command or Action
Step 3
end
Example:
Switch(config)# end
Step 4 show vtp status
Example:
Switch# show vtp status
Step 5 copy running-config startup-config
Example:
Switch# copy running-config startup-config
Related Topics
VTP Version, on page 22
VTP Version 2, on page 17
VTP Version 3, on page 18
Enabling VTP Pruning
Pruning increases available bandwidth by restricting flooded traffic to those trunk links that the traffic must
use to access the destination devices. You can only enable VTP pruning on a switch in VTP server mode.
With VTP versions 1 and 2, when you enable pruning on the VTP server, it is enabled for the entire VTP
domain. In VTP version 3, you must manually enable pruning on each switch in the domain.
Only VLANs included in the pruning-eligible list can be pruned. By default, VLANs 2 through 1001 are
pruning-eligible on trunk ports. Reserved VLANs and extended-range VLANs cannot be pruned.
Before You Begin
VTP pruning is not designed to function in VTP transparent mode. If one or more switches in the network
are in VTP transparent mode, you should do one of these:
• Turn off VTP pruning in the entire network.
• Turn off VTP pruning by making all VLANs on the trunk of the switch upstream to the VTP transparent
To configure VTP pruning on an interface, use the switchport trunk pruning vlan interface configuration
command. VTP pruning operates when an interface is trunking. You can set VLAN pruning-eligibility, whether
Catalyst 2960-X Switch VLAN Configuration Guide, Cisco IOS Release 15.0(2)EX
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switch pruning ineligible.
Purpose
Returns to privileged EXEC mode.
Verifies that the configured VTP version is enabled.
(Optional) Saves the configuration in the startup
configuration file.
Configuring VTP
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