Reference Guide

N8406-022A 1Gb Intelligent L2 Switch Browser-based Interface Reference Guide 53
Port statistics are described in the following table:
Table 38 Port Statistics
Control
Description
Clear Port x Statistics
Select Clear and click Submit to clear statistics for this port.
Operational Status
Enables or disables the port.
RMON Operational Status
Enables or disables RMON for the port.
The next several tables contain specific information about bridging, interface (input and output), and Ethernet
statistics.
Bridging (“dot1”) Statistics
The following table describes the bridging statistics of the selected port:
Table 39 Bridging statistics of a port
Statistic
Description
InFrames
The number of frames that have been received by this port from its segment. A frame received
on the interface corresponding to this port is only counted by this object if and only if it is for a
protocol being processed by the local bridging function, including bridge management frames.
OutFrames
The number of frames that have been transmitted by this port to its segment. Note that a
frame transmitted on the interface corresponding to this port is only counted by this object if
and only if it is for a protocol being processed by the local bridging function, including bridge
management frames.
InDiscards
Count of valid frames received that were discarded (that is, filtered) by the Forwarding
Process.
EntryDiscards
The total number of Forwarding Database entries, which have been or would have been
learnt, but have been discarded due to a lack of space to store them in the Forwarding
Database. If this counter is increasing, it indicates that the Forwarding Database is regularly
becoming full (a condition which has unpleasant performance effects on the sub network). If
this counter has a significant value but is not presently increasing, it indicates that the problem
has been occurring but is not persistent.
PortForward
Transitions
The number of times this port has transitioned from the Learning state to the Forwarding state.
Link-State Change
The number of times an interface has transitioned from either down to up or from up to down.
Interface (“if”) Statistics - Input
The following table describes the interface input statistics of the selected port:
Table 40 Interface Statistics for a Port - Input
Statistic
Description
HC Octets
The total number of octets received on the interface, including framing characters.
HC UCastPkts
The number of packets, delivered by this sub layer to a higher sub layer, which were not
addressed to a multicast or broadcast address at this sub layer.
HC BcastPkts
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.
HC MCastPkts
The total number of packets that higher-level protocols requested to be transmitted, and
which were addressed to a multicast address at this sub layer, including those that were
discarded or not sent. For a MAC layer protocol, this includes both Group and Functional
addresses.
Discards
The number of inbound packets that were chosen to be discarded even though no errors had
been detected to prevent their being delivered to a higher-layer protocol. One possible
reason for discarding such a packet could be to free up buffer space.
Errors
For packet-oriented interfaces, the number of inbound packets that contained errors
preventing them from being delivered to a higher-layer protocol. For character-oriented or
fixed-length interfaces, the number of inbound transmission units that contained errors
preventing them from being deliverable to a higher-layer protocol.