Cisco Bug: CSCuo62498 - MF: C4948 %C4K_HWPORTMAN-4-BLOCKEDTXQUEUE: Blocked transmit queue
Last Modified
Jul 26, 2016
Product
Cisco Catalyst 4000 Series Switches
Known Affected Releases
15.1(2)SGN3.4
Description (partial)
Symptom:
C4948TxQ will block transmit after BusyBit counters keep increasing for a while.
Apr 11 00:26:21 84.38.34.230 8865: 008861: Apr 11 00:26:19.749 BST: %C4K_HWPORTMAN-3-TXQUEDRAINFAILURE: Failed to drain transmit queues on Switch Phyport Te1/5 using slot pool 65535
0016 ar20.englw Apr 11 00:29:51 84.38.34.230 8866: 008862: Apr 11 00:29:49.996 BST: %C4K_HWPORTMAN-4-BLOCKEDTXQUEUE: Blocked transmit queue HwTxQId7 on Switch Phyport Te1/5, count=1
Conditions:
This message can appear when the port in question is receiving pause
frames from the peer (see "show int gi x/y flow" on this port and the peer port).
show platform software int gi x/y all | inc Busy
shows an increasing BusyBitActivityCount as in
BusyBitActivityCount : 431
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