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Frame discards seen on a NIC port due to no buffer errors

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Category:
fas-systems
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hw
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Applies to

All NIC ports

Issue

  • Frame discards are increasing on a NIC port in ifstat output.
  • The rate of total discards is almost equal to the rate of no buffer errors:

::> system node run -node <node_name> -command ifstat -a 

-- interface  e0f  (17 days, 13 hours, 50 minutes, 52 seconds) --

RECEIVE
 Total frames:    22701m | Frames/second:   14948  | Total bytes:      4019g
 Bytes/second:     2646k | Total errors:        0  | Errors/minute:       0 
 Total discards:  21861  | Discards/minute:     1  | Multi/broadcast:   105k
 Non-primary u/c:     0  | CRC errors:          0  | Runt frames:         0 
 Long frames:         0  | Length errors:       0  | Alignment errors:    0 
 No buffer:       21521  | Pause:               0  | Jumbo:               0 
 Noproto:             0  | Bus overruns:      340  | LRO segments:    16365m
 LRO bytes:        2571g | LRO6 segments:       0  | LRO6 bytes:          0 
 Bad UDP cksum:       0  | Bad UDP6 cksum:      0  | Bad TCP cksum:       0 
 Bad TCP6 cksum:      0  | Mcast v6 solicit:    0 

 

 

 

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