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14-15
Catalyst 2940 Switch Software Configuration Guide
78-15507-02
Chapter 14 Configuring VTP
Monitoring VTP
Monitoring VTP
You monitor VTP by displaying VTP configuration information: the domain name, the current VTP
revision, and the number of VLANs. You can also display statistics about the advertisements sent and
received by the switch.
Table 14-3 shows the privileged EXEC commands for monitoring VTP activity.
This is an example of output from the show vtp status privileged EXEC command:
Switch# show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 8
Number of existing VLANs : 7
VTP Operating Mode : Transparent
VTP Domain Name : perd-group
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x24 0x08 0x4C 0xB8 0xA7 0x9E 0x46 0x03
Configuration last modified by 172.20.139.142 at 3-6-93 17:17:40
This is an example of output from the show vtp counters privileged EXEC command:
Switch# show vtp counters
VTP statistics:
Summary advertisements received : 1671
Subset advertisements received : 8
Request advertisements received : 1
Summary advertisements transmitted : 1598
Subset advertisements transmitted : 9
Request advertisements transmitted : 0
Number of config revision errors : 0
Number of config digest errors : 0
Number of V1 summary errors : 0
VTP pruning statistics:
Trunk Join Transmitted Join Received Summary advts received from
non-pruning-capable device
---------------- ---------------- ---------------- ---------------------------
Fa0/1 0 0 0
Fa0/2 0 0 0
Table 14-3 VTP Monitoring Commands
Command Purpose
show vtp status Display the VTP switch configuration information.
show vtp counters Display counters about VTP messages that have been sent and received.