Switch Release Notes
Configuring the Cajun P550 Switch (Layer 2 & Layer 3)
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Cajun P550/P220 Switch Operation Guide
Configuring VTP Snooping
VTP is a Layer 2 protocol developed by Cisco to maintain VLAN configuration 
consistency among its switches. this protocol only runs over trunk ports that have 
enabled either Cisco ISL or IEEE 802.1Q tagging. VTP Snooping allows a Cajun switch to 
synchronize its VLAN configuration with that of a Cisco switch running VTP in the same 
network. VLAN additions, deletions, and name changes made on the network’s Cisco 
VTP server will be automatically updated on Cajun switches that have VTP Snooping 
enabled and have connectivity to the Cisco VTP server. VLAN changes made on a Cajun 
switch are not automatically updated on any other switch.
Note: 
VTP Snooping is enabled by default. You would only need to change VTP 
Snooping port settings if you wanted to disable its ability to learn VLAN 
changes on the network’s Cisco VTP server.
To configure switch port VTP Snooping parameters:
1.
In the 
System Configuration
 section of the Web Agent, click 
Modules and 
Ports
. The Module Information dialog box opens.
2.
In the 
Switch Ports
 column, click on the 
Switch Ports link
 for the module 
which you want to enable VTP snooping. The Switch Ports dialog box for that 
module opens.
3.
In the 
Name
 column, click the 
port
 on which you want to enable VTP Snooping 
switch wide. The Switch Port Configuration dialog box opens for that port.
4.
From the 
Trunk Mode
 pull-down menu, select either 
IEEE 802.1Q
 or 
Multi-layer
 to match the trunk mode setting of the switch port of the switch port 
at the other end of the link.
5.
From the 
VTP Snooping
 pull-down menu, select 
Enable
. This is disabled by 
default.
6.
Click 
APPLY
 to save your changes, or 
CANCEL
 to restore previous settings.
7.
In the 
Switching Parameters
 section of the Web Agent window, click 
VTP 
Snooping
. The VTP Snooping Configuration dialog box opens.










