Cisco Catalyst 4500 Series Administration Guide

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 16 Configuring VLANs, VTP, and VMPS
VLAN Trunking Protocol
Starting a Takeover
This process applies to VTP version 3 only. To start a takeover, perform this task:
This example shows how to start a takeover and direct it to the vlan database:
Switch# vtp primary-server vlan
Enter VTP password:password
This system is becoming primary for feature vlan
VTP Feature Conf Revision Primary Server Device ID Description
----------- ------------- -------------- -------- -------------------
MST Yes 4 0012.4371.9ec0=0012.4371.9ec0 R1
Do you want to continue? (confirm)
Switch#
Displaying VTP Statistics
To display VTP statistics, including VTP advertisements sent and received and VTP errors, perform this
task:
This example shows how to display VTP statistics:
Switch# show vtp counters
VTP statistics:
Summary advertisements received : 7
Subset advertisements received : 5
Request advertisements received : 0
Summary advertisements transmitted : 997
Subset advertisements transmitted : 13
Request advertisements transmitted : 3
Number of config revision errors : 0
Number of config digest errors : 0
Number of V1 summary errors : 0
Command Purpose
Switch# vtp primary-server [vlan | mst]| [force]
Changes the operational state of a switch from a
secondary to a primary server and advertises the
configuration to the whole domain. (If the password for
this device is configured with the hidden keyword, the
user is prompted to re-enter it.)
Note Using the force keyword overwrites the
configuration of any conflicting servers. If not
using the force keyword, you are prompted for
confirmation before proceeding with the takeover.
Specify where to direct the takeover by selecting the
appropriate feature (vlan or mst). If no feature is
selected, the takeover is directed to the VLAN database.
Command Purpose
Switch# show vtp counters
Displays VTP statistics.

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