C
ONFIGURING
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WITCH
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Showing Port Statistics
You can display standard statistics on network traffic from the Interfaces
Group and Ethernet-like MIBs, as well as a detailed breakdown of traffic
based on the RMON MIB. Interfaces and Ethernet-like statistics display
errors on the traffic passing through each port. This information can be
used to identify potential problems with the switch (such as a faulty port or
unusually heavy loading). RMON statistics provide access to a broad range
of statistics, including a total count of different frame types and sizes
passing through each port. All values displayed have been accumulated
since the last system reboot, and are shown as counts per second. Statistics
are refreshed every 60 seconds by default.
Note: RMON groups 2, 3 and 9 can only be accessed using SNMP
management software such as HP OpenView.
Table 3-11. Port Statistics
Parameter Description
Interface Statistics
Received Octets The total number of octetts received on the interface,
including framing characters.
Received Unicast Packets The number of subnetwork-unicast packets delivered to a
higher-layer protocol.
Received Multicast Packets The number of packets, delivered by this sub-layer to a higher
(sub-)layer, which were addressed to a multicast address at
this sub-layer.
Received Broadcast
Packets
The number of packets, delivered by this sub-layer to a higher
(sub-)layer, which were addressed to a broadcast address at
this sub-layer.
Received Discarded
Packets
The number of inbound packets which 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
up buffer space.
Received Unknown
Packets
The number of packets received via the interface which were
discarded because of an unknown or unsupported protocol.
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