SMSC LAN9311 User Manual
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
81
Revision 1.4 (08-19-08)
DATASHEET
6.5.7
Counters
A counter is maintained per port that contains the number of packets dropped due to buffer space limits
and ingress rate limit discarding (Red and random Yellow dropping). These counters are accessible
via the following registers:
and ingress rate limit discarding (Red and random Yellow dropping). These counters are accessible
via the following registers:
A counter is maintained per port that contains the number of packets dropped due solely to ingress
rate limit discarding (Red and random Yellow dropping). This count value can be subtracted from the
drop counter, as described above, to obtain the drop counts due solely to buffer space limits. The
ingress rate drop counters are accessible via the following registers:
rate limit discarding (Red and random Yellow dropping). This count value can be subtracted from the
drop counter, as described above, to obtain the drop counts due solely to buffer space limits. The
ingress rate drop counters are accessible via the following registers:
6.6
Switch Fabric Interrupts
The switch fabric is capable of generating multiple maskable interrupts from the buffer manager, switch
engine, and MACs. These interrupts are detailed in
engine, and MACs. These interrupts are detailed in