User Guide

Monitoring the System
234
GS716Tv3, GS724Tv4, and GS748Tv5 Smart Switches
Packets Received > 1518
Octets
The total number of packets received that were longer than 1518 octets
(excluding framing bits, but including FCS octets) and were otherwise
well formed.
Total Packets Received
Without Errors
The total number of packets received that were without errors.
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.
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.
Table 72. Detailed interface statistics (continued)
Field Description