Network OS Administration Guide

Supporting Network OS 6.0.1a

Part Number: 53-1003768-04

Monitoring CRC errors

Certain interface counters, such as those for CRC errors, may not be available by means of SNMP OIDs. In this case it is recommended that either RMON or CLI be used to monitor those statistics.

The following synchronizes the statistics maintained for the interface and RMON, as well as ensures proper reporting from an operational standpoint.

  1. First use the clear counters all command in global configuration mode.
    device# clear counters all
  2. Then use the clear counters rmon command.
    device# clear counters rmon
  3. Finally, execute the rmon collection stats command on each interface, as in the following example.
    device(config)# interface tengigabitethernet 170/0/1
    device(conf-if-te-170/0/1)# rmon collection stats 2 owner admin
  4. Use an appropriate RMON MIB for additional monitoring. For example, to obtain CRC statistics on a Brocade VDX platform, the following RMON MIB could be used: Object-etherStatsCRCAlignErrors, OID- .1.3.6.1.2.1.16.1.1.1.8