Administration: Discovery
CDP Statistics
Cisco 500 Series Stackable Managed Switch Administration Guide 176
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CDP Statistics
The CDP Statistics page displays information regarding CDP frames that were 
sent or received from a port. CDP packets are received from devices attached to 
the switches interfaces, and are used for the Smartport feature. See Configuring 
CDP for more information.
CDP statistics for a port are only displayed if CDP is enabled globally and on the 
port. This is done in the CDP Properties page and the CDP Interface Settings 
page.
To  v i e w  C D P  s t a t i s t i c s :
STEP 1 Click Administration > Discovery - CDP > CDP Statistics.
The following fields are displayed for every interface:.
Packets Received/Transmitted:
• Version 1—Number of CDP version 1 packets received/transmitted.
• Version 2—Number of CDP version 2 packets received/transmitted.
• Total—Total number of CDP packets received/transmitted.
The CDP Error Statistics section displays the CDP error counters.
• Illegal Checksum—Number of packets received with illegal checksum 
value.
• Other Errors—Number of packets received with errors other than illegal 
checksums.
• Neighbors Over Maximum—Number of times that packet information could 
not be stored in cache because of lack of room.
To clear all counters on all interfaces, click Clear All Interface Counters. To clear 
all counters on an interface, select it and click Clear Interface Counters.