| Packets Received
|
- Total Packets Received (Octets) – The total number of octets of data (including those in bad packets)
received on the network (excluding framing bits but including Frame Check Sequence (FCS) octets). This object can be
used as a reasonable estimate of Ethernet utilization. If greater precision is desired, the etherStatsPkts and
etherStatsOctets objects should be sampled before and after a common interval. The result of this equation is the
value Utilization which is the percent utilization of the Ethernet segment on a scale of 0 to 100 percent.
- Packets Received 64 Octets – The total number of packets (including bad packets) received that were 64
octets in length (excluding framing bits but including FCS octets).
- Packets Received 65-127 Octets – The total number of packets (including bad packets) received that
were between 65 and 127 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Received 128-255 Octets – The total number of packets (including bad packets) received that
were between 128 and 255 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Received 256-511 Octets – The total number of packets (including bad packets) received that
were between 256 and 511 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Received 512-1023 Octets – The total number of packets (including bad packets) received that
were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Received 1024-1518 Octets – The total number of packets (including bad packets) received that
were between 1024 and 1518 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Received > 1518 Octets – The total number of packets received that were longer than 1522
octets (excluding framing bits, but including FCS octets) and were otherwise well formed.
- Packets RX and TX 64 Octets – The total number of packets (including bad packets) received and
transmitted that were 64 octets in length (excluding framing bits but including FCS octets).
- Packets RX and TX 65-127 Octets – The total number of packets (including bad packets) received and
transmitted that were between 65 and 127 octets in length inclusive (excluding framing bits but including FCS
octets).
- Packets RX and TX 128-255 Octets – The total number of packets (including bad packets) received and
transmitted that were between 128 and 255 octets in length inclusive (excluding framing bits but including FCS
octets).
- Packets RX and TX 256-511 Octets – The total number of packets (including bad packets) received and
transmitted that were between 256 and 511 octets in length inclusive (excluding framing bits but including FCS
octets).
- Packets RX and TX 512-1023 Octets – The total number of packets (including bad packets) received and
transmitted that were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS
octets).
- Packets RX and TX 1024-1518 Octets – The total number of packets (including bad packets) received and
transmitted that were between 1024 and 1518 octets in length inclusive (excluding framing bits but including FCS
octets).
- Packets RX and TX 1519-2047 Octets – The total number of packets received and transmitted that were
between 1519 and 2047 octets in length inclusive (excluding framing bits, but including FCS octets) and were otherwise
well formed.
- Packets RX and TX 1523-2047 Octets – The total number of packets received and transmitted that were
between 1523 and 2047 octets in length inclusive (excluding framing bits, but including FCS octets) and were otherwise
well formed.
- Packets RX and TX 2048-4095 Octets – The total number of packets received that were between 2048 and
4095 octets in length inclusive (excluding framing bits, but including FCS octets) and were otherwise well
formed.
- Packets RX and TX 4096-9216 Octets – The total number of packets received that were between 4096 and
9216 octets in length inclusive (excluding framing bits, but including FCS octets) and were otherwise well
formed.
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| Packets Received Successfully
|
- Total Packets Received Without Error – 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. Note that 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. Note that this does not include multicast packets.
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| Packets Received Discarded
|
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.
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| Received Packets Error Counts
|
- 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). Note that 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/Undersize Received – The total number of packets received that were less than 64 octets in
length (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.
- 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.
- uRPF Discards – The number of packets dropped due to failing the uRPF.
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| Received Packets Not Forwarded
|
- Total Received Packets Not Forwarded – A count of valid frames received which were discarded (in other
words, filtered) by the forwarding process.
- 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.
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| Packets Transmitted Octets
|
- Total Packets Transmitted (Octets) – The total number of octets of data (including those in bad
packets) received on the network (excluding framing bits but including FCS octets). This object can be used as a
reasonable estimate of Ethernet utilization. If greater precision is desired, the etherStatsPkts and etherStatsOctets
objects should be sampled before and after a common interval.
- Packets Transmitted 64 Octets – The total number of packets (including bad packets) received that were
64 octets in length (excluding framing bits but including FCS octets).
- Packets Transmitted 65-127 Octets – The total number of packets (including bad packets) received that
were between 65 and 127 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Transmitted 128-255 Octets – The total number of packets (including bad packets) received that
were between 128 and 255 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Transmitted 256-511 Octets – The total number of packets (including bad packets) received that
were between 256 and 511 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Transmitted 512-1023 Octets – The total number of packets (including bad packets) received
that were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Transmitted 1024-1518 Octets – The total number of packets (including bad packets) received
that were between 1024 and 1518 octets in length inclusive (excluding framing bits but including FCS octets).
- Packets Transmitted > 1518 Octets – The total number of packets transmitted that were longer than
1518 octets (excluding framing bits, but including FCS octets) and were otherwise well formed.
- Max Frame Size – The maximum size of the Info (non-MAC) field that this port will receive or
transmit.
- Maximum Transmit Unit – The maximum Ethernet payload size.
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| Packets Transmitted Successfully
|
- 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.
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| Transmit Packets Discarded
|
The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their
being deliverable to a higher-layer protocol. A possible reason for discarding a packet could be to free up buffer
space.
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|
Transmit Errors
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- Total Transmit Errors – The sum of Single, Multiple, and Excessive Collisions.
- FCS Errors – The total number of packets transmitted 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.
- Underrun Errors – The total number of frames discarded because the transmit FIFO buffer became empty
during frame transmission.
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|
Transmit Discards
|
- Total Transmit Packets Discards – The sum of single collision frames discarded, multiple collision
frames discarded, and excessive frames discarded.
- Single Collision Frames – A count of the number of successfully transmitted frames on a particular
interface for which transmission is inhibited by exactly one collision.
- Multiple Collision Frames – A count of the number of successfully transmitted frames on a particular
interface for which transmission is inhibited by more than one collision.
- Excessive Collisions – A count of frames for which transmission on a particular interface fails due to
excessive collisions.
- Port Membership Discards – The number of frames discarded on egress for this port due to egress
filtering being enabled.
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|
Protocol Statistics
|
- 802.3x Pause Frames Transmitted – A count of MAC Control frames transmitted on this interface with an
opcode indicating the PAUSE operation. This counter does not increment when the interface is operating in half-duplex
mode.
- GVRP PDUs Received – The count of GVRP PDUs received in the GARP layer.
- GVRP PDUs Transmitted – The count of GVRP PDUs transmitted from the GARP layer.
- GVRP Failed Registrations – The number of times attempted GVRP registrations could not be
completed.
- GMRP PDUs Received – The count of GMRP PDUs received in the GARP layer.
- GMRP PDUs Transmitted – The count of GMRP PDUs transmitted from the GARP layer.
- GMRP Failed Registrations – The number of times attempted GMRP registrations could not be
completed.
- STP BPDUs Transmitted – Spanning Tree Protocol Bridge Protocol Data Units sent.
- STP BPDUs Received – Spanning Tree Protocol Bridge Protocol Data Units received.
- RST BPDUs Transmitted – Rapid Spanning Tree Protocol Bridge Protocol Data Units sent.
- RSTP BPDUs Received – Rapid Spanning Tree Protocol Bridge Protocol Data Units received.
- MSTP BPDUs Transmitted – Multiple Spanning Tree Protocol Bridge Protocol Data Units sent.
- MSTP BPDUs Received – Multiple Spanning Tree Protocol Bridge Protocol Data Units received.
- SSTP BPDUs Transmitted – Shared Spanning Tree Protocol Bridge Protocol Data Units sent.
- SSTP BPDUs Received – Shared Spanning Tree Protocol Bridge Protocol Data Units received.
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|
Dot1x Statistics
|
- EAPOL Frames Transmitted – The number of EAPOL frames of any type that have been transmitted by this
authenticator.
- EAPOL Start Frames Received – The number of valid EAPOL start frames that have been received by this
authenticator.
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| Traffic Load Statistics
|
- Load Interval – The length of time for which data is used to compute load statistics. The value is
given in seconds, and must be a multiple of 30. The allowable range is from 30 to 600 seconds.
- Bits Per Second Received – Approximate number of bits per second received. This value is an
exponentially weighted average and is affected by the configured load-interval.
- Bits Per Second Transmitted – Approximate number of bits per second transmitted. This value is an
exponentially weighted average and is affected by the configured load-interval.
- Packets Per Second Received – Approximate number of packets per second received. This value is an
exponentially weighted average and is affected by the configured load-interval.
- Packets Per Second Transmitted – Approximate number of packets per second transmitted. This value is
an exponentially weighted average and is affected by the configured load-interval.
- Percent Utilization Received – Value of link utilization in percentage representation for the RX
line.
- Percent Utilization Transmitted – Value of link utilization in percentage representation for the TX
line.
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| Time Since Counters Last Cleared
|
The elapsed time, in days, hours, minutes, and seconds since the statistics for this port were last
cleared.
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