Packet tracer 5.1 and VTP pruning

[Reza Rezazadeh]

I intended to create a LAN and examine VTP pruning on simulation status, but after set a vtp domain and vlans parameters, I can't run a command "vtp prun".

The core device is 3560-24PS.

When I use "vtp ?" only shows "domain, mode, password , version" parameters description.

please help me to active pruning parameter .

[jimmysands73_2 · Accepted solution]

PT does not support that command. If I understand pruning correct, the only way to manually do it on PT would be to use the switchport trunk allow vlan command for this.

Cheers,

Jimmy

[Rui Carlos Antunes]

In order to enable VTP Pruning on a switch, the switch must be configured as VTP server (for the VTP domain).

Can you post the output of the "show vtp status" command?

[jimmysands73_2]

With due respect Rantunes, VTP pruning is not a feature supported in PT.

witch#sh vtp sta

VTP Version : 2

Configuration Revision : 0

Maximum VLANs supported locally : 255

Number of existing VLANs : 5

VTP Operating Mode : Server

VTP Domain Name :

VTP Pruning Mode : Disabled

VTP V2 Mode : Disabled

VTP Traps Generation : Disabled

MD5 digest : 0x7D 0x5A 0xA6 0x0E 0x9A 0x72 0xA0 0x3A

Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00

Local updater ID is 0.0.0.0 (no valid interface found)

Switch#conf t

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#vtp ?

domain Set the name of the VTP administrative domain.

mode Configure VTP device mode

password Set the password for the VTP administrative domain

version Set the adminstrative domain to VTP version

Switch(config)#set ?

% Unrecognized command

Switch(config)#vtp pruning

^

% Invalid input detected at '^' marker.

[Rui Carlos Antunes]

On a Catalyst 3560-24PS it is supported.

switch#sh version

Cisco IOS Software, C3560 Software (C3560-IPBASE-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)

[...]

System image file is "flash:c3560-ipbase-mz.122-35.SE5/c3560-ipbase-mz.122-35.SE5.bin"

cisco WS-C3560-24PS (PowerPC405)

[...]

Model number : WS-C3560-24PS-S

[...]

switch#conf t

Enter configuration commands, one per line. End with CNTL/Z.

switch#vtp pruning ?

switch(config)#^Z

[jimmysands73_2]

You must have a different version of PT...I used 5.1 and 5.2, both show no signs of supporting VTP pruning. You sure you using PT? My image file on PT is c3560-advipservicesk9-mz.122-37.SE1.bin, and whenever I issued the command, it didnt work...

Switch#vtp ?

% Unrecognized command

Switch#conf t

Enter configuration commands, one per line. End with CNTL/Z.

Switch(config)#vtp ?

domain Set the name of the VTP administrative domain.

mode Configure VTP device mode

password Set the password for the VTP administrative domain

version Set the adminstrative domain to VTP version

Switch(config)#vtp