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Cisco Bug: CSCus11842 - leaf be inactive due to T2 buffer locked by pause frame sent from host

Last Modified

Feb 11, 2018

Products (1)

  • Cisco LAN Switch Software

Known Affected Releases

11.0(2m)

Description (partial)

Symptom:
the leaf node will became to inactive due to the T2 buffer exhausted and locked when host sent a huge number pause frame. Disable the pause ctrl by command 'bcm-shell-hw "m XLMAC_PAUSE_CTRL TX_PAUSE_EN=0,RX_PAUSE_EN=0"'. But interface flapping will reset the bit of pause ctrl

Conditions:
host with UCS intel520 adapter and running W2K8 connects to leaf will cause the problem.
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