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C-33
Cisco Intrusion Prevention System CLI Sensor Configuration Guide for IPS 7.1
OL-19892-01
Appendix C Troubleshooting
Troubleshooting the Appliance
Inline Mode = Unpaired
Pair Status = N/A
Link Status = Up
Link Speed = Auto_1000
Link Duplex = Auto_Full
Total Packets Received = 0
Total Bytes Received = 0
Total Multicast Packets Received = 0
Total Broadcast Packets Received = 0
Total Jumbo Packets Received = 0
Total Undersize Packets Received = 0
Total Receive Errors = 0
Total Receive FIFO Overruns = 0
Total Packets Transmitted = 0
Total Bytes Transmitted = 0
Total Multicast Packets Transmitted = 0
Total Broadcast Packets Transmitted = 0
Total Jumbo Packets Transmitted = 0
Total Undersize Packets Transmitted = 0
Total Transmit Errors = 0
Total Transmit FIFO Overruns = 0
MAC statistics from interface GigabitEthernet0/0
Media Type = TX
Link Status = Up
Link Speed = Auto_100
Link Duplex = Auto_Full
Total Packets Received = 1830137
Total Bytes Received = 131624465
Total Multicast Packets Received = 20
Total Receive Errors = 0
Total Receive FIFO Overruns = 0
Total Packets Transmitted = 220052
Total Bytes Transmitted = 103796666
Total Transmit Errors = 0
Total Transmit FIFO Overruns = 0
sensor#
Step 3 If the Link Status is down, make sure the sensing port is connected properly:
• Make sure the sensing port is connected properly on the appliance.
Step 4 Verify the interface configuration:
• Make sure you have the interfaces configured properly.
• Verify the SPAN and VACL capture port configuration on the Cisco switch.
Refer to your switch documentation for the procedure.
Step 5 Verify again that the interfaces are up and that the packet count is increasing.
sensor# show interfaces
For More Information
• For the procedure for properly installing the sensing interface on your sensor, refer to the chapter on
your appliance in Cisco Intrusion Prevention System Appliances and Modules Installation Guide for
IPS 7.1.
• For the procedures for configuring interfaces on your sensor, see Chapter 5, “Configuring
Interfaces.”