HP 6120XG ProCurve Series 6120 Blade Switches Management and Configuration Gui - Page 427

Configuring for Network Management Applications LLDP (Link-Layer Discovery Protocol) Displaying LLDP Statistics LLDP statistics are available on both a global and a per-port levels. Rebooting the switch resets the LLDP statistics counters to zero. Disabling the transmit and/or receive capability on a port "freezes" the related port counters at their current values. Syntax show lldp stats [port-list] The global LLDP statistics command displays an overview of neighbor detection activity on the switch, plus data on the number of frames sent, received, and discarded per-port. The per-port LLDP statistics command enhances the list of per-port statistics provided by the global statistics command with some additional per-port LLDP statistics. Global LLDP Counters: Neighbor Entries List Last Updated: Shows the elapsed time since a neighbor was last added or deleted. New Neighbor Entries Count: Shows the total of new LLDP neighbors detected since the last switch reboot. Disconnecting, then reconnecting a neighbor increments this counter. Neighbor Entries Deleted Count: Shows the number of neighbor deletions from the MIB for AgeOut Count and forced drops for all ports. For example, if the admin status for port on a neighbor device changes from tx_rx or txonly to disabled or rxonly, then the neighbor device sends a "shutdown" packet out the port and ceases transmitting LLDP frames out that port. The device receiving the shutdown packet deletes all information about the neighbor received on the applicable inbound port and increments the counter. Neighbor Entries Dropped Count: Shows the number of valid LLDP neighbors the switch detected, but could not add. This can occur, for example, when a new neighbor is detected when the switch is already supporting the maximum number of neighbors. Refer to "Neighbor Maximum" on page 13-81. Neighbor Entries AgeOut Count: Shows the number of LLDP neighbors dropped on all ports due to Time-to-Live expiring. - Continued - 13-79