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Cisco Bug: CSCuq14123 - PFC is not sending after upgrade from 1.3 to 2.2b when buffers exhausted

Last Modified

Jan 29, 2017

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

6.1(2)I3(0.99)

Description (partial)

Symptom:
Upgrade from 1.3 to 2.2b may fail in the presence of extreme PFC buffer configuration

Conditions:
1) PFC has to be enabled with custom buffer configuration
2) The total buffer consumed by all the internal links of fabric card exceeds 75% of total shared space
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