17-14
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 17 Performance Monitoring
17.2.4 Ether Ports PM Window
Table 17-15 E-Series Ethernet Statistics Parameters
Parameter Definition
Time Last Cleared A time stamp indicating the last time statistics were reset.
ifInOctets Number of bytes received since the last counter reset.
rxTotalPkts Number of received packets.
ifInUcastPkts Number of unicast packets received since the last counter reset.
ifInMulticastPkts Number of multicast packets received since the last counter reset.
ifInDiscards The number of inbound packets that were chosen to be discarded even
though no errors had been detected to prevent their being deliverable to a
higher-layer protocol. One possible reason for discarding such a packet
could be to free buffer space.
ifOutOctets Number of bytes transmitted since the last counter reset.
txTotalPkts Number of transmitted packets.
ifOutMulticastPkts Number of multicast packets transmitted.
ifOutBroadcastPkts Number of broadcast packets transmitted.
ifOutDiscards Number of outbound packets which were chosen to be discarded even
though no errors had been detected to prevent their transmission. A
possible reason for discarding such packets could be to free up buffer
space.
ifOurErrors Number of outbound packets or transmission units that could not be
transmitted because of errors.
dot3StatsAlignmentErrors A count of frames received on a particular interface that are not an integral
number of octets in length and do not pass the FCS check.
dot3StatsFCSErrors A count of frames received on a particular interface that are an integral
number of octets in length but do not pass the FCS check.
dot3StatsFrameTooLong A count of frames received on a particular interface that exceed the
maximum permitted frame size.
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.
etherStatsFragments The total number of packets received that were less than 64 octets in length
(excluding framing bits but including FCS octets) and had either a bad
FCS with an integral number of octets (FCS Error) or a bad FCS with a
nonintegral number of octets (Alignment Error).
Note It is entirely normal for etherStatsFragments to increment. This is
because it counts both runts (which are normal occurrences due to
collisions) and noise hits.
etherStatsPkts64Octets The total number of packets (including bad packets) received that were 64
octets in length (excluding framing bits but including FCS octets).
etherStatsPkts65to127Oct
ets
The total number of packets (including bad packets) received that were
between 65 and 127 octets in length inclusive (excluding framing bits but
including FCS octets).
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