About Rate Limits
Rate limits can prevent redirected packets for exceptions from overwhelming the supervisor module on a Cisco NX-OS device. You can configure rate limits in packets per second for the following types of redirected packets:
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Access-list log packets
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Bidirectional forwarding detection (BFD) packets
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Catch-all exception traffic
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Fabric Extender (FEX) traffic
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Layer 3 glean packets
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Layer 3 multicast data packets
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SPAN egress traffic—For this option only, you can configure rate limits in kilobits per second.