Motorola P880 ユーザーズマニュアル

Cajun P880 Routing Switch Installation Guide 

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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 enabled 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.