Monitoring Error Counters

Error counters are monitored to make sure they are not increasing rapidly, because a rapid increase indicates a problem. For information about troubleshooting these problems, see Troubleshooting. You can monitor error counters for TCP/IP interfaces in the following ways:

• Use MONITOR to view counters such as Checksum Errors, Send and Receive Packet Errors, and interface-specific errors. To view these counters, load MONITOR and select LAN/WAN information > interface you want to view.
• Use TCPCON to view the following TCP/IP counters:
  • IP Errors
  • IP Address Errors
  • Unknown Protocol Errors
  • Local Errors
  • Reassembly Failures Detected
  • Fragmentation Failures Detected

  To view these counters, load TCPCON and select Statistics > IP > More IP Statistics.