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Nexus 5672 output (to fex) errors

from88
Level 4
Level 4

Hello,

We're receving lots of output errors.


As you see it's strange that Xmit-Err (tranceive) and IntMacRx-Er (receive) counters is the same.

 

show interface ethernet 1/38 counters errors
--------------------------------------------------------------------------------
Port Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscards
--------------------------------------------------------------------------------
Eth1/38 0 1 2519847 1 0 0
--------------------------------------------------------------------------------
Port Single-Col Multi-Col Late-Col Exces-Col Carri-Sen Runts
--------------------------------------------------------------------------------
Eth1/38 0 0 0 0 0 0
--------------------------------------------------------------------------------
Port Giants SQETest-Err Deferred-Tx IntMacTx-Er IntMacRx-Er Symbol-Err
--------------------------------------------------------------------------------
Eth1/38 0 -- 0 0 2519847 0
TEONET01B# show interface ethernet 1/38 counters detailed
Ethernet1/38
Rx Packets: 3449696305
Rx Unicast Packets: 3448862564
Rx Multicast Packets: 33897
Rx Broadcast Packets: 799843
Rx Bytes: 3606293562403
Tx Packets: 2507449425
Tx Unicast Packets: 2497426110
Tx Multicast Packets: 1925368
Tx Broadcast Packets: 5578100
Tx Bytes: 1365596235452
Input CRC Errors: 1
Input Errors: 1
Output Errors: 2519847
Output Errors: 2519847


Despite of that, we could think that this is because of some source which is generating that errors and NX-OS is using cut-through switching.
But i can't see any host port, which would generate such an errors.

 

Device:
Nexus 5672UP
version 7.1(4)N1(1)

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