Cisco Catalyst 4500 Series Software Configuration Guide

17-13
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 17 Configuring VLANs, VTP, and VMPS
VLAN Trunking Protocol
• Configuring VLANs as eligible for pruning on a Catalyst 4500 series switch affects pruning
eligibility for those VLANs on that switch only, not on all network devices in the VTP domain.
• The VLAN database is saved in the NVRAM file in a format compliant with the VTP version
running on the system. Since older images supporting only VTP version 2 do not recognize the VTP
version 3 file format, the NVRAM VLAN database information is lost if the system is downgraded
from a new image supporting VTP to one that does not.
VTP Default Configuration
Table 17-3 shows the default VTP configuration.
The default VTP mode for newly manufactured Catalyst 4500 supervisor engines, Catalyst 4900 series
switches, and the Cisco ME 4924-10GE switch is transparent. Deleting vlan.dat or entering the
erase cat4000_flash: command, and resetting the switch changes the VTP mode to server.
Configuring VTP
These sections describe how to configure VTP:
• Configuring VTP Global Parameters, page 17-13
• Configuring the VTP Mode, page 17-16
• Starting a Takeover, page 17-18
• Displaying VTP Statistics, page 17-19
• Displaying VTP Devices in a Domain, page 17-19
Configuring VTP Global Parameters
These sections describe configuring the VTP global parameters:
• Configuring a VTP Password, page 17-14
• Enabling VTP Pruning, page 17-15
• Enabling the VTP Version Number, page 17-15
Note You can enter the VTP global parameters in either global configuration mode or in EXEC mode.
Table 17-3 VTP Default Configuration
Feature Default Value
VTP domain name Null
VTP mode Server
VTP version 2 enable state Version 2 is disabled
VTP password None
VTP pruning Disabled

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E