Freescale Semiconductor MPC8260 - Manual (Page 1209)

Fast Ethernet Controller
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor 35-13
If an address from the hash table must be deleted, the Ethernet channel must be disabled, the hash table
registers must be cleared, and the
SET GROUP ADDRESS command must be executed for the remaining
preferred addresses. This is required because the hash table might have mapped multiple addresses to the
same hash table bit.
35.11 RMON Support
The Fast Ethernet controller can automatically gather network statistics required for RMON without the
need to receive all addresses using promiscuous mode. Setting FPSMRx[MON] enables RMON support.
The RMON statistics and their corresponding counters in the parameter RAM are described in Table 35-5 .
Table 35-5. RMON Statistics and Counters
Statistic Description Counter
etherStatsDropEvents The total number of events in which packets were detected as
dropped by the probe due to lack of resources. Note that this may
not be the number of packets dropped; it is the number of times this
condition is detected. DISFC
etherStatsOctets The total number of octets of data (including those in bad packets)
received on the network (excluding framing bits but including FCS
octets). OCTC
etherStatsPkts The total number of packets (including bad packets, broadcast
packets, and multicast packets) received. USPC +
OSPC +
FRGC +
JBRC +
P64C +
P65C +
P128C +
P256C +
P512C +
P1024C
etherStatsBroadcastPkts The total number of good packets received that were directed to the
broadcast address. Note that this does not include multicast
packets. BROC
etherStatsMulticastPkts The total number of good packets received that were directed to a
multicast address. Note that this number does not include packets
directed to the broadcast address. MULC
etherStatsCRCAlignErrors The total number of packets received that had a length (excluding
framing bits but including FCS octets) of between 64 and 1518
octets, inclusive, but had either an integral number of octets (FCS
error) or a bad FCS with a non-integral number of octets (alignment
error). CRCEC +
ALEC
-FRGC
-JBRC
etherStatsUndersizePkts The total number of packets received that were less than 64 octets
long (excluding framing bits but including FCS octets) and were
otherwise well-formed. USPC
etherStatsOversizePkts The total number of packets received that were longer than 1518
octets (excluding framing bits but including FCS octets) and were
otherwise well-formed. OSPC