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Cisco Bug: CSCsz65402 - SAMI throughput performance does not meet line rate for all packet sizes

Last Modified

Feb 01, 2017

Products (1)

  • Cisco 7600 Series Routers

Known Affected Releases

12.2(32.8.11)SR186

Description (partial)

Symptom:

For 64-byte packets, maximum packet rate achievable on a SAMI running 12.2(33)SRD version of the 
IOS software is only 640,000 packets per second. This is approximately 20% lesser compared to the 
maximum achievable packet rate of 800,000 packets per seconds on a SAMI  running 12.4 version of 
IOS for same sized packets.

Conditions:

The degradation in packet rate is observed with plain CEF switched packets without any extra 
features configured.
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Bug Details Include

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  • Status
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