Reference Guide

454 | Remote Monitoring (RMON)
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RMON implements the following standard request for comment (RFCs) (for more information, refer to
RFC and I-D Compliance):
• RFC-2819
• RFC-3273
• RFC-3434
Fault Recovery
RMON provides the following fault recovery functions:
Interface Down—When an RMON-enabled interface goes down, monitoring continues. However, all data
values are registered as 0xFFFFFFFF (32 bits) or ixFFFFFFFFFFFFFFFF (64 bits). When the interface
comes back up, RMON monitoring processes resumes.
Note: A network management system (NMS) should be ready to interpret a down interface
and plot the interface performance graph accordingly.