Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide, Rel. 12.2(25)SEF1

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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide

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Chapter 11 Configuring VTP

Configuring VTP

See the “Enabling VTP Pruning” section on page 11-14. VTP pruning takes effect several seconds after

you enable it. VTP pruning does not prune traffic from VLANs that are pruning-ineligible. VLAN 1 and

VLANs 1002 to 1005 are always pruning-ineligible; traffic from these VLANs cannot be pruned.

Extended-range VLANs (VLAN IDs higher than 1005) are also pruning-ineligible.

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 switch pruning ineligible.

To configure VTP pruning on an interface, use the switchport trunk pruning vlan interface

configuration command (see the “Changing the Pruning-Eligible List” section on page 10-20). VTP

pruning operates when an interface is trunking. You can set VLAN pruning-eligibility, whether or not

VTP pruning is enabled for the VTP domain, whether or not any given VLAN exists, and whether or not

the interface is currently trunking.

Configuring VTP

These sections contain this configuration information:

• Default VTP Configuration, page 11-6

• VTP Configuration Options, page 11-7

• VTP Configuration Guidelines, page 11-8

• Configuring a VTP Server, page 11-9

• Configuring a VTP Client, page 11-11

• Disabling VTP (VTP Transparent Mode), page 11-12

• Enabling VTP Version 2, page 11-13

• Enabling VTP Pruning, page 11-14

• Adding a VTP Client Switch to a VTP Domain, page 11-14

Default VTP Configuration

Table 11-2 shows the default VTP configuration.

Table 11-2 Default VTP Configuration

Feature Default Setting

VTP domain name Null.

VTP mode Server.

VTP version Version 1 (Version 2 is disabled).

VTP password None.

VTP pruning Disabled.