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Configuring for Network Management Applications

LLDP (Link-Layer Discovery Protocol)

— Continued from the preceding page. —

Per-Port LLDP Counters:

NumFramesRecvd: Shows the total number of valid, inbound

LLDP advertisements received from any neighbor(s) on < port-

list >. Where multiple neighbors are connected to a port through

a hub, this value is the total number of LLDP advertisements

received from all sources.

NumFramesSent: Shows the total number of LLDP

advertisements sent from < port-list >.

NumFramesDiscarded: Shows the total number of inbound LLDP

advertisements discarded by < port-list >. This can occur, for

example, when a new neighbor is detected on the port, but the

switch is already supporting the maximum number of

neighbors. Refer to “Neighbor Maximum” on page 12-50. This

can also be an indication of advertisement formatting

problems in the neighbor device.

Frames Invalid: Shows the total number of invalid LLDP

advertisements received on the port. An invalid advertisement

can be caused by header formatting problems in the neighbor

device.

TLVs Unrecognized: Shows the total number of LLDP TLVs

received on a port with a type value in the reserved range. This

could be caused by a basic management TLV from a later LLDP

version than the one currently running on the switch.

TLVs Discarded: Shows the total number of LLDP TLVs discarded

for any reason. In this case, the advertisement carrying the

TLV may be accepted, but the individual TLV was not usable.

Neighbor Ageouts: Shows the number of LLDP neighbors

dropped on the port due to Time-to-Live expiring.

12-48

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