Select Device > Monitor > ISIS > Circuit Table.
With a circuit selected, click Packet Statistics.
Depending on how the selected circuit is configured, you will see at least one of the following categories:
Level1 – Sending
Level1 – Receiving
Level2 – Sending
Level2 – Receiving
The following information appears:
II Hello (ciiPacketCountIIHellos)
IS Hello (ciiPacketCountISHellos)
Note: The information provided is specific to the selected level and direction.
Number of IS-IS Hello PDU frames seen moving in this direction at this level.
Point-to-Point IIH PDUs are counted at the lowest enabled level: at L1 on L1 or L1L2 circuits; at L2 otherwise.
Number of ES-IS Hello PDU frames seen moving in this direction. ISH PDUs are counted at the lowest enabled level: at L1 on L1 or L1L2 circuits; at L2 otherwise.
Number of ES Hello PDU frames seen moving in this direction. ESH PDUs are counted at the lowest enabled level: at L1 on L1 or L1L2 circuits; at L2 otherwise.
Number of IS-IS LSP frames seen moving in this direction at this level.
Number of IS-IS CSNP frames seen moving in this direction at this level.
Number of IS-IS PSNP frames seen moving in this direction at this level.
Number of unknown IS-IS PDU frames seen at this level.