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CHAPTER 2: SYSTEM
FIGURE 2-18. LLDP STATISTICS INFORMATION
Parameter description:
Global Counters
Neighbor entries were last changed at: Shows the time when the last entry was last deleted or added. It also shows the time elapsed
since the last change was detected.
Total Neighbors Entries Added: Shows the number of new entries added since switch reboot.
Total Neighbors Entries Deleted: Shows the number of new entries deleted since switch reboot.
Total Neighbors Entries Dropped: Shows the number of LLDP frames dropped due to the entry table being full.
Total Neighbors Entries Aged Out: Shows the number of entries deleted due to Time-To-Live expiring.
Local Counters
The displayed table contains a row for each port. The columns hold the following information:
Local Port: The port on which LLDP frames are received or transmitted.
Tx Frames: The number of LLDP frames transmitted on the port.
Rx Frames: The number of LLDP frames received on the port.
Rx Errors: The number of received LLDP frames containing some kind of error.
Frames Discarded: If an LLDP frame is received on a port, and the switch’s internal table is full, the LLDP frame is counted and
discarded. This situation is known as “Too Many Neighbors” in the LLDP standard. LLDP frames require a new entry in the table
when the Chassis ID or Remote Port ID is not already contained within the table. Entries are removed from the table when a given
port‘s link is down, an LLDP shutdown frame is received, or when the entry ages out.
TLVs Discarded: Each LLDP frame can contain multiple pieces of information, known as TLVs (TLV is short for “Type Length Value”).
If a TLV is malformed, it is counted and discarded.
TLVs Unrecognized: The number of well-formed TLVs, but with an unknown type value.
Org. Discarded: The number of organizationally received TLVs.
