In this example, the fiber optic cable from the Secondary SISNet Repeater on CTLR3 to the SISNet Repeater on CTLR4 has been disconnected or broken. All SISNet Repeaters on the secondary ring have an integrity error of SISNet Broken. In addition, the secondary SISNet Repeater on CTLR4 shows the red X, as it is not receiving any communications. This is indicated by the Pred_Sa value of 00-00-00-00-00-00, indicating that this repeater has no predecessor (the receiver connection is not connected or the cable is disconnected or broken between the preceding repeater on the ring and this repeater).
