Cisco Small Business 200 Series Administration Manual page 110

Administration: Discovery
Configuring CDP
- Appliance ID—Type of device attached to port advertised in the appliance TLV.
- Appliance VLAN ID—VLAN on the device used by the appliance, for instance if the appliance is
an IP phone, this is the voice VLAN.
• Extended Trust TLV
- Extended Trust—Enabled indicates that the port is trusted, meaning that the host/server from
which the packet is received is trusted to mark the packets itself. In this case, packets received on
such a port are not re-marked. Disabled indicates that the port is not trusted in which case, the
following field is relevant.
• CoS for Untrusted Ports TLV
- CoS for Untrusted Ports—If Extended Trust is disabled on the port, this fields displays the Layer
2 CoS value, meaning, an 802.1D/802.1p priority value. This is the COS value with which all packets
received on an untrusted port are remarked by the device.
• Power TLV
- Request ID—Last power request ID received echoes the Request-ID field last received in a Power
Requested TLV. It is 0 if no Power Requested TLV was received since the interface last transitioned
to Up.
- Power Management ID—Value incremented by 1 (or 2, to avoid 0) each time any one of the
following events occur:
Available-Power or Management Power Level fields change value
A Power Requested TLV is received with a Request-ID field which is different from the last-
received set (or when the first value is received)
The interface transitions to Down
- Available Power—Amount of power consumed by port.
- Management Power Level—Displays the supplier's request to the powered device for its Power
Consumption TLV. The device always displays "No Preference" in this field.
CDP Neighbors Information
The CDP Neighbors Information page displays CDP information received from neighboring devices.
After timeout (based on the value received from the neighbor Time To Live TLV during which no CDP PDU
was received from a neighbor), the information is deleted.
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