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Cisco Bug: CSCvv41533 - L3 flow punted to CPU due to L3MTU failure

Last Modified

Sep 28, 2020

Products (1)

  • Cisco Nexus 3000 Series Switches

Known Affected Releases

7.0(3)I7(3) 7.0(3)I7(8)

Description (partial)

Symptom:
Flapping SVI(The Vlan is a non-vPC Vlan, and the SVI has customized MTU) many times could trigger the L3 flow punted to CPU. This issue impacts transmission performance at least, and affects the traffic goes out of the SVI with MTU 1500.

Conditions:
SVI flapping.(The Vlan is a non-vPC Vlan, and the SVI has customized MTU)
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