there are few ways of looking at ingress drops .. beginning 5.0.3.N1.1b, we can execute 'show queuing interface eth x/y' where eth x/y is the fex fabric interface.
N5K# show queuing interface e1/5 detail
...
...
....
FEX interface info:
FEX Drop Class Buffer Size: 316160
Total FEX interface statistics:
FEX Uplink Interface Rx Drops: 0
This will show us the fex uplink drops.
on the fex, there are few command which we can look at to see the drop counters.
first you will need to login to the fex, execute 'dbgexc prt fp'. This will give you the port mapping.
fex-103# dbgexec prt fp
Fabric port map:
Fabric port map:
1 3
| :
+-----+-----+
| NI1 | NI0 |
+-----+-----+
| NI2 | NI3 |
+-----+-----+
| :
2 4
Front port map:
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47
: : : : : : : : : : : : : : : : : : : : : : : :
+---+---+---+---+---+---+ +---+---+---+---+---+---+ +---+---+---+---+---+---+ +---+---+---+---+---+---+
HIF | 3 | 7 | 2 | 6 |11 |16 | |10 |15 |17 |20 |21 |23 | |26 |30 |27 |31 |35 |39 | |34 |38 |42 |46 |43 |47 |
+---+---+---+---+---+---+ +---+---+---+---+---+---+ +---+---+---+---+---+---+ +---+---+---+---+---+---+
HIF | 1 | 5 | 0 | 4 | 9 |13 | | 8 |12 |14 |18 |19 |22 | |24 |28 |25 |29 |32 |37 | |33 |36 |40 |44 |41 |45 |
+---+---+---+---+---+---+ +---+---+---+---+---+---+ +---+---+---+---+---+---+ +---+---+---+---+---+---+
: : : : : : : : : : : : : : : : : : : : : : : :
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
now based on the uplink port you can map the corresponding NI port.
then execute
show platform software portola rmon 0 NIx - this will show you all the counters
show platform software portola loss
show platform software portola drops 0 NIx
here 0 is the portola asic.
Thanks, Vinayak
