Netgear GS516TP Software Administration Manual - Page 153

Total Packets Received with MAC Errors, Total Packets Transmitted Successfully

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GS516TP Gigabit Smart Switches • 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 nonintegral number of octets (alignment error). This definition of jabber is different from 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 20-150 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 from 64 through 1518 octets, inclusive, but had a bad frame check sequence (FCS) with a nonintegral number of octets. • Rx FCS Errors. The total number of packets received that had a length (excluding framing bits, but including FCS octets) of 64 through 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 was not able to keep up with the inflow. • 802.3x Pause Frames Received. A count of MAC control frames received on this interface with an operation code indicating the pause operation. This counter does not increment when the interface is operating in half-duplex mode. • Total Packets Transmitted (Octets). The total number of octets of data (including those in bad packets) transmitted on the network (excluding framing bits but including FCS octets). This object can be used as a reasonable estimate of Ethernet utilization. • Total Packets Transmitted Successfully. The number of frames that have been transmitted by this port to its segment. • Unicast Packets Transmitted. The total number of packets that higher-level protocols requested be transmitted to a subnetwork-unicast address, including those that were discarded or not sent. • Multicast Packets Transmitted. The total number of packets that higher-level protocols requested be transmitted to a multicast address, including those that were discarded or not sent. • Broadcast Packets Transmitted. The total number of packets that higher-level protocols requested be transmitted to the broadcast address, including those that were discarded or not sent. • Total Transmit Errors. The sum of single, multiple, and excessive collisions. • Tx FCS Errors. The total number of packets transmitted that had a length (excluding framing bits, but including FCS octets) of from 64 through 1518 octets, inclusive, but had a bad FCS with an integral number of octets. 153

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153
GS516TP Gigabit Smart Switches
•
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 nonintegral number of octets (alignment error). This definition of jabber is
different from 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 20–150 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 from 64 through 1518 octets, inclusive, but
had a bad frame check sequence (FCS) with a nonintegral number of octets.
•
Rx FCS Errors
. The total number of packets received that had a length (excluding
framing bits, but including FCS octets) of 64 through 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 was not able to keep up with the inflow.
•
802.3x Pause Frames Received
. A count of MAC control frames received on this
interface with an operation code indicating the pause operation. This counter does not
increment when the interface is operating in half-duplex mode.
•
Total Packets Transmitted (Octets)
. The total number of octets of data (including
those in bad packets) transmitted on the network (excluding framing bits but including
FCS octets). This object can be used as a reasonable estimate of Ethernet utilization.
•
Total Packets Transmitted Successfully
. The number of frames that have been
transmitted by this port to its segment.
•
Unicast Packets Transmitted
. The total number of packets that higher-level
protocols requested be transmitted to a subnetwork-unicast address, including those
that were discarded or not sent.
•
Multicast Packets Transmitted
. The total number of packets that higher-level
protocols requested be transmitted to a multicast address, including those that were
discarded or not sent.
•
Broadcast Packets Transmitted
. The total number of packets that higher-level
protocols requested be transmitted to the broadcast address, including those that
were discarded or not sent.
•
Total Transmit Errors
. The sum of single, multiple, and excessive collisions.
•
Tx FCS Errors
. The total number of packets transmitted that had a length (excluding
framing bits, but including FCS octets) of from 64 through 1518 octets, inclusive, but
had a bad FCS with an integral number of octets.