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Monitoring the System
322
S3300 Smart Managed Pro Switch
Unicast Packets Received
The number of subnetwork-unicast packets delivered to a higher-layer protocol.
Multicast Packets Received The total number of good packets received that were directed to a multicast
address. This number does not include packets directed to the broadcast address.
Broadcast Packets
Received
The total number of good packets received that were directed to the broadcast
address. This does not include multicast packets.
Receive Packets Discarded The number of inbound packets chosen to be discarded, even though no errors
had been detected, in order to prevent their being delivered to a higher-layer
protocol. A possible reason for discarding a packet could be to free up buffer
space.
Total Packets Received with
MAC Errors
The total number of inbound packets that contained errors preventing them from
being deliverable to a higher-layer protocol.
Jabbers Received
The total number of packets received that were longer than 1518 octets (excluding
framing bits, but including FCS octets), and had either a bad Frame Check
Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with
a non-integral number of octets (Alignment Error). This definition of jabber is
different than the definition in IEEE 802.3 section 8.2.1.5 (10BASE5) and section
10.3.1.4 (10BASE2). These documents define jabber as the condition where any
packet exceeds 20 ms. The allowed range to detect jabber is between 20 ms and
150 ms.
Fragments Received
The total number of packets received that were less than 64 octets in length with
ERROR CRC (excluding framing bits but including FCS octets).
Undersize Received
The total number of packets received that were less than 64 octets in length with
GOOD CRC (excluding framing bits but including FCS octets).
Alignment Errors
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 a bad
Frame Check Sequence (FCS) with a non-integral number of octets.
Rx FCS Errors
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 a bad
Frame Check Sequence (FCS) with an integral number of octets
Overruns
The total number of frames discarded as this port was overloaded with incoming
packets, and could not keep up with the inflow.
Total Received Packets Not
Forwarded
A count of valid frames received which were discarded (i.e., filtered) by the
forwarding process.
Local Traffic Frames
The total number of frames dropped in the forwarding process because the
destination address was located off of this port.
802.3x Pause Frames
Received
A count of MAC Control frames received on this interface with an opcode
indicating the PAUSE operation. This counter does not increment when the
interface is operating in half-duplex mode.
Unacceptable Frame Type
The number of frames discarded from this port due to being an unacceptable
frame type.
Table 102. Detailed Interface Statistics (continued)
Field
Description
Характеристики
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