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Cisco SCE 2000 and SCE 1000 Software Configuration Guide
OL-7827-12
A P P E N D I X
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Monitoring SCE Platform Utilization
Revised: June 15, 2009, OL-7827-12
Introduction
This appendix explains how to monitor SCE platforms that are installed in real traffic.
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SCE Platform Utilization Indicators, page A-2
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Service Loss, page A-3
As with any network device, the SCE platform has its performance and capacity envelopes. As the
network evolves, the utilization of the SCE platform can increase and these envelopes might be reached.
It is, therefore, advisable to monitor SCE platform to be sure that utilization remains at a level that
supports reliable and consistent service.
When the SCE platform reaches its performance envelopes, it activates certain mechanisms that insure
that no traffic will be dropped while in this state. These mechanisms will prioritize packet handling over
service related actions. As a result, symptoms of service loss might be experienced. Following are
several examples:
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Broken reports during the congestion period (sometimes appears as saw-tooth pattern).
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Bandwidth enforcement levels are not met.
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No UDP traffic is being reported (this is because the SCE platform will automatically filter all UDP
traffic in certain cases as a last resort).
Monitoring the SCE platform can be divided onto two main areas:
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Monitoring SCE platform utilization
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Monitoring service loss