## Analyzing Switch Data

Use the Switch Data functionality to view the values of Fibre Channel counters in a report format.

1. Click Switch Data in the System Reports window
2. Select a switch from the Select Switch pull-down menu and click Display.

The values of all Fibre Channel counters are displayed. The FC Counters are as follows:

- LIP - Loop Initialization Protocol (or Loop reset). Method in which Fibre channel links initialize communication.
- Link - Link reset. Reset of FC link.
- Sync - Loss of synchronization. A fibre channel device was unable to decode the transmitted signal.
- Signal - Loss of signal. A fibre channel device was unable to receive any signal.
- Seq - Sequence Error. This is when an illegal fame state is received. For example a Start of Frame is followed by another Start of Frame instead of an End of Frame.
- ITW - Invalid Transmission Word. A fibre channel receiver has received an encoded word 8b/10b that is not valid.
- CRC - Cyclic Redundancy Check. The CRC value for the fibre channel frame does not match the frame which means the frame is corrupt and must be re-sent.

3. To reset the counters, click Set Baseline.

The Switch Data report displays the starting date, time, and duration of the baseline. Any increase of Fibre Channel counters after the baseline is set is displayed in bold (for example, 10/100).

4. Click Total to erase the values saved by Set-Baseline and to display the total Fibre Channel counters (the actual values).