The
show lldp statistics command displays an overview of LLDP neighbor detection on the device, as well as
packet counters and protocol statistics. The statistics are displayed on a global
basis.
The following shows an example report.
device#show lldp statistics
Last neighbor change time: 23 hours 50 minutes 40 seconds ago
Neighbor entries added : 14
Neighbor entries deleted : 5
Neighbor entries aged out : 4
Neighbor advertisements dropped : 0
Port Tx Pkts Rx Pkts Rx Pkts Rx Pkts Rx TLVs Rx TLVs Neighbors
Total Total w/Errors Discarded Unrecognz Discarded Aged Out
1 60963 75179 0 0 0 0 4
2 0 0 0 0 0 0 0
3 60963 60963 0 0 0 0 0
4 60963 121925 0 0 0 0 0
5 0 0 0 0 0 0 0
6 0 0 0 0 0 0 0
7 0 0 0 0 0 0 0
8 0 0 0 0 0 0 0
9 0 0 0 0 0 0 0
10 60974 0 0 0 0 0 0
11 0 0 0 0 0 0 0
12 0 0 0 0 0 0 0
13 0 0 0 0 0 0 0
14 0 0 0 0 0 0 0
The following table describes the information displayed by the
show lldp statistics
command.
|
Field
|
Description
|
|
Last neighbor change time
|
The elapsed time (in hours, minutes, and seconds) since a neighbor last advertised
information. For example, the elapsed time since a neighbor was last added, deleted,
or its advertised information changed.
|
|
Neighbor entries added
|
The number of new LLDP neighbors detected since the last reboot or since the last
time the
clear lldp statistics all command was issued.
|
|
Neighbor entries deleted
|
The number of LLDP neighbors deleted since the last reboot or since the last time
the
clear lldp statistics all command was issued.
|
|
Neighbor entries aged out
|
The number of LLDP neighbors dropped on all ports after the time-to-live expired.
Note that LLDP entries age out naturally when a port cable or module is disconnected
or when a port becomes disabled. However, if a disabled port is re-enabled, the system
will delete the old LLDP entries.
|
|
Neighbor advertisements dropped
|
The number of valid LLDP neighbors the device detected, but could not add. This can
occur, for example, when a new neighbor is detected and the device is already supporting
the maximum number of neighbors possible. This can also occur when an LLDPDU is missing
a mandatory TLV or is not formatted correctly.
|
|
Port
|
The local port number.
|
|
Tx Pkts Total
|
The number of LLDP packets the port transmitted.
|
|
Rx Pkts Total
|
The number of LLDP packets the port received.
|
|
Rx Pkts w/Errors
|
The number of LLDP packets the port received that have one or more detectable errors.
|
|
Rx Pkts Discarded
|
The number of LLDP packets the port received then discarded.
|
|
Rx TLVs Unrecognz
|
The number of TLVs the port received that were not recognized by the LLDP local agent.
Unrecognized TLVs are retained by the system and can be viewed in the output of the
show LLDP neighbors detail command or retrieved through SNMP.
|
|
Rx TLVs Discarded
|
The number of TLVs the port received then discarded.
|
|
Neighbors Aged Out
|
The number of times a neighbor information was deleted because its TTL timer expired.
|