Cisco Gigabit Ethernet Switch Module for HP p-Class BladeSystem Software Configuration Guide

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Cisco Gigabit Ethernet Switch Module for HP p-Class BladeSystem Software Configuration Guide
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Chapter 10 Configuring VTP
Configuring VTP
See the “Enabling VTP Pruning” section on page 10-14. 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 9-20). 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 10-6
• VTP Configuration Options, page 10-7
• VTP Configuration Guidelines, page 10-8
• Configuring a VTP Server, page 10-9
• Configuring a VTP Client, page 10-11
• Disabling VTP (VTP Transparent Mode), page 10-12
• Enabling VTP Version 2, page 10-13
• Enabling VTP Pruning, page 10-14
• Adding a VTP Client Switch to a VTP Domain, page 10-14
Default VTP Configuration
Table 10-2 shows the default VTP configuration.
Table 10-2 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.