Specifications

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Cisco Wide Area Application Services Command Reference
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Chapter 3 CLI Commands
show cdp
Usage Guidelines The show cdp command displays information regarding how frequently CDP packets are resent to
neighbors, the length of time that CDP packets are held by neighbors, the disabled status of CDP
Ver si on
2 multicast advertisements, CDP Ethernet interface ports, and general CDP traffic information.
Examples Table 3-11 describes the fields shown in the show cdp display.
Table 3-12 describes the fields shown in the show cdp entry neighbor display.
Ta b l e 3-11 Field Descriptions for the show cdp Command
Field Description
Sending CDP packets
every XX seconds
Interval (in seconds) between transmissions of CDP advertisements. This field
is controlled by the cdp timer command.
Sending a holdtime
value of XX seconds
Time (in seconds) that the device directs the neighbor to hold a CDP
advertisement before discarding it. This field is controlled by the cdp
holdtime command.
Sending CDPv2
advertisements is XX
Transmission status for sending CDP Version-2 type advertisements. Possible
values are enabled or disabled.
Ta b l e 3-12 Field Descriptions for the show cdp entry Command
Field Description
Device ID Name of the neighbor device and either the MAC address or the serial number
of this device.
Entry address(es)
IP address IP address of the neighbor device.
CLNS address Non-IP network address. Depends on type of neighbor.
DECnet address Non-IP network address. Depends on type of neighbor.
Platform Product name and number of the neighbor device.
Interface Protocol being used by the connectivity media.
Port ID (outgoing
port)
Port number of the port on the neighbor device.
Capabilities Capability code discovered on the neighbor device. This is the type of the
device listed in the CDP Neighbors table. Possible values are:
R—Router
T—Transparent bridge
B—Source-routing bridge
S—Switch
H—Host
I—IGMP device
r—Repeater