View LLDP Transmission Statistics

Use this procedure to view the LLDP transmission statistics. You can also view the statistics graphically.

About this task

LLDP operates at the port interface level. Enabling FA on a port automatically enables LLDP transmission and reception on that port. It also enables traffic tagging and disables spanning tree on that port.

Enabling FA on an MLT enables LLDP transmission and reception on all ports in that MLT.

Note

When a port is removed from an MLT, LLDP transmission on that port stops and spanning tree is enabled. Any I-SID-to-VLAN mappings on that port are removed, if not already learned on any other port in the MLT. This also causes the Switched UNI I-SID to be deleted from the MLT. If however, the mappings are learned on another port on the MLT, then the Switched UNI I-SID continues to exist for that MLT.

For ports in an LACP MLT, when FA is enabled, tagging is enabled on all ports in the LACP MLT. The consistency check for FA is based on key membership. If all ports with the same key do not support FA, FA is not successfully enabled on those ports.

Note

If a slot is removed from the switch chassis, the statistics are not displayed on the slot ports. When the slot is inserted back again, the statistics counters are reset.

Procedure

In the navigation pane, expand Configuration > Serviceability > Diagnostics > 802_1ab.
Click LLDP.
Click the TX Stats tab.

The transmission statistics are displayed.
To view the transmission statistics graphically for a port:
1. In the content pane (on the right-hand-side), select a row and click the Graph button.
  The TX Stats-Graph,<port-number> tab displays.
  
  You can view a graphical representation of the LLDP frames transmitted (FramesTotal), for the following parameters:
  - AbsoluteValue
  - Cumulative
  - Average/sec
  - Minimum/sec
  - Maximum/sec
  - LastVal/sec
2. To view the graph, select one of the above parameters and click the appropriate icon on the top left-hand-side of the menu bar to draw a line chart, area chart, bar chart or a pie chart.
3. Click Clear Counters to clear the existing counters, and fix a reference point in time to restart the counters.
4. Click Export, to export the statistical data to a file.
5. To fix a poll interval, select an appropriate value from the Poll Interval drop-down list.

TX Stats Field Descriptions

Use the data in the following table to use the TX Stats tab.


Name	Description
PortNum	Specifies the port number.
FramesTotal	Specifies the total number of LLDP frames transmitted.