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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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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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Monitoring the SCE platform can be divided onto two main areas:
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OL-7827-12
SCE Platform Utilization Indicators, page A-2
Service Loss, page A-3
Broken reports during the congestion period (sometimes appears as saw-tooth pattern).
Bandwidth enforcement levels are not met.
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 SCE platform utilization
Monitoring service loss
A P P E N D I X
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
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A-1
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