We started to observe excessive amount of transmit packets discard on the interfaces connecting to other switches. This two N4032F switches configured as stack and acting as distribution layer switch.
Uplink connected to Edge Cisco and Downlinks connected to dell M1000e chassis equipped with Force10MXL stacks.
Machine Description............... Dell Networking Switch
System Model ID................... N4032F
Machine Type...................... Dell Networking N4032F
Serial Number..................... CN05KGDH282985860084A03
Manufacturer...................... 0xbc00
Burned In MAC Address............. F8B1.568D.A670
System Object ID.................. 1.3.6.1.4.1.674.10895.3044
CPU Version....................... XLP308H-B2
SOC Version....................... BCM56842_A1
HW Version........................ 3
CPLD Version...................... 17
unit active backup current-active next-active
---- ----------- ----------- -------------- --------------
1 6.3.2.7 6.3.0.15 6.3.2.7 6.3.2.7
2 6.3.2.7 6.3.0.15 6.3.2.7 6.3.2.7
This occurred twice and only reboot fixed those discards.
Recently (on Firday) we switched to last available FW. On previously FW we didn't have such issue, but there were other different bugs.