Statistics And Axfddistatistics Groups - 3Com CoreBuilder 2500 User Manual

15-4 C 15: R
HAPTER EMOTE
Statistics and
axFDDIStatistics
Groups
M (RMON) T
ONITORING ECHNOLOGY
The statistics and axFDDIStatistics groups record frame statistics for
Ethernet and FDDI interfaces. The information available per interface
segment includes these statistics:
Number of received octets
Number of received packets
Number of received broadcast packets
Number of received multicast packets
Number of received packets with CRC or alignment errors
(for Ethernet frames)
Number of received packets with FCS or invalid data length
(for FDDI frames)
Number of received packets that are undersized but otherwise
well-formed
Number of received packets that are oversized but otherwise
well-formed (for Ethernet frames)
Number of detected transmit collisions
Byte sizes include the 4-byte FCS but exclude the framing bits. Table 15-3
lists the number of the packet length counters.
Table 15-3 Supported Frame Sizes for Ethernet and FDDI
Frame Lengths (Bytes)
Ethernet
64
65 to 127
128 to 511
512 to 1023
1024 to 1518
FDDI
22 or fewer
23 to 63
64 to 127
128 to 511
512 to 1023
1024 to 2047
2048 to 4095