3: CDP
Configuring VLAN and CDP on a GW Series Router
Issue 1.4
Page 10 of 12
© 2012 Virtual Access.
3
CDP
The CDP feature on the router allows it to pass out CDP MAC address broadcasts. This
broadcast can indicate to a client host what VLAN tag to use. Certain IP handsets are
enabled as CDP clients by default.
This means that IP phones that are required to operate on a specific VLAN do not have to
be pre-staged. In conjunction with Virtual Access’ phone provisioning service, IP phones
and routers can be shipped directly to a customer site requiring no pre-configuration.
3.1
Configuring the router for CDP
To configure the router for CDP, from the Start page, click
Advanced -> Expert View -
> system ->Ethernet -> CDP server
. The CDP Server page appears.
Figure 7: The CDP server page
Field name
Description
Command Line
Enabled
Enables or disables CDP (Cisco
Discovery Protocol) for
advertising Voice VLAN ID.
Option Description
yes
Enables CDP
no
Disables CDP
Set CDP server enabled
=yes
Voice VLAN Id
Defines Voice VLAN Identifier
to be advertised.
Option
Description
Minimum
value
1
Default
value
1
Maximum
value
65535
Units
Unspecified
Set CDP server voice
vlan identifier = 100
Time to Live
Defines Time to Live for CDP
Set cdp server time to
