Interface report data is calculated using the following formulas:
This refers to the amount of data transmitted or received via the interface at a given point of time (bits per second).
In Traffic(bps): Rx Traffic: Delta_InOctets*8*1000/deltatime
Out Traffic(bps): Tx Traffic: Delta_OutOctets*8*1000/deltatime
Lets consider thee deltatime to be 15 minutes (900 seconds = 900000 milliseconds).
InOctets taken at the 1st poll (0th Minute)= 1000
InOctets taken at the 2nd poll (15th Minute)= 2000
So, Rx traffic = ((2000-1000)*8*1000) /900000 = 8.9 Mbps
| InOctets (bytes) | The difference between two ifInOctets collected at subsequent polls. | |
| OutOctets(bytes) | The difference between two ifOutOctets collected at subsequent polls. | |
| ifInOctets (bytes) | .1.3.6.1.2.1.2.2.1.10 | The total number of octets received on the interface, including framing characters. |
| ifOutOctets(bytes) | .1.3.6.1.2.1.2.2.1.16 | The total number of octets transmitted out of the interface, including framing characters. |
| deltatime | Time difference between two polls in milliseconds. |
This refers to the Network traffic / interface speed at a given point of time in percentage.
In Utilization(%): (InTraffic/Inspeed)*100(Delta_InOctets*8*1000*100/deltatime*inspeed)
Out Utilization(%): (OutTraffic/OutSpeed)*100 = (Delta_OutOctets*8*1000*100/deltatime*Outspeed)
| InOctets (bytes) | The difference between two ifInOctets collected at subsequent polls. | |
| OutOctets(bytes) | The difference between two ifOutOctets collected at subsequent polls. | |
| ifInOctets (bytes) | .1.3.6.1.2.1.2.2.1.10 | The total number of octets received on the interface, including framing characters. |
| ifOutOctets(bytes) | .1.3.6.1.2.1.2.2.1.16 | The total number of octets transmitted out of the interface, including framing characters. |
| deltatime | Time difference between two polls. | |
| Inspeed/ifSpeed | .1.3.6.1.2.1.2.2.1.5 | An estimate of the interface\s current bandwidth in bits per second. (Can be defined by user). |
| Outspeed/ifSpeed | .1.3.6.1.2.1.2.2.1.5 | An estimate of the interface\s current bandwidth in bits per second. (Can be defined by user). |
This refers to the total number of packets transmitted or received per second.
Rx Packets = (INUCAST + INDISCARDS + INERRORS + INUNKNOWNPROTOS + HCINMCAST + HCINBCAST)*1000/ deltatime
Tx Packets = (OUTUCAST + HCOUTMCAST + HCOUTBCAST)*1000/deltatime
| InErrors | .1.3.6.1.2.1.2.2.1.14 | The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. |
| INUCAST | .1.3.6.1.2.1.2.2.1.11 | The number of subnetwork-unicast packets delivered to a higher-layer protocol. |
| OUTUCAST | .1.3.6.1.2.1.2.2.1.17 | 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. |
| INDISCARDS | .1.3.6.1.2.1.2.2.1.13 | 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. |
| INUNKNOWNPROTOS | .1.3.6.1.2.1.2.2.1.15 | The number of packets received via the interface which were discarded because of an unknown or unsupported protocol. |
| HCINMCAST | .1.3.6.1.2.1.31.1.1.1.8 | The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were addressed to a multicast address at this sub-layer. For a MAC layer protocol, this includes both Group and Functional addresses. This object is a 64-bit version of ifInMulticastPkts. |
| HCOUTMCAST | .1.3.6.1.2.1.31.1.1.1.12 | The total number of packets that higher-level protocols requested 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. This object is a 64-bit version of ifOutMulticastPkts. |
| HCINBCAST | .1.3.6.1.2.1.31.1.1.1.9 | 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. This object is a 64-bit version of ifInBroadcastPkts. |
| HCOUTBCAST | .1.3.6.1.2.1.31.1.1.1.13 | The total number of packets that higher-level protocols requested be transmitted, and which were addressed to a broadcast address at this sub-layer, including those that were discarded or not sent. This object is a 64-bit version of ifOutBroadcastPkts. |
Error rate is the ratio between total number of Error packets and the total number of packets transmitted and received in percentage.
32-bit:
(InErrors+OutErrors)*100/(INUCAST + OUTUCAST + INDISCARDS + OUTDISCARDS + INERRORS + OUTERRORS + INUNKNOWNPROTOS + HCINBCAST + HCOUTBCAST)
64-bit:
(InErrors+OutErrors)*100/(INUCAST + OUTUCAST + INDISCARDS + OUTDISCARDS + INERRORS + OUTERRORS + INUNKNOWNPROTOS + HCINMCAST + HCOUTMCAST + HCINBCAST + HCOUTBCAST)
| InErrors | .1.3.6.1.2.1.2.2.1.14 | The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. |
| OutErrors | .1.3.6.1.2.1.2.2.1.20 | The number of outbound packets that could not be transmitted because of errors. |
| INUCAST | .1.3.6.1.2.1.2.2.1.11 | The number of subnetwork-unicast packets delivered to a higher-layer protocol. |
| OUTUCAST | .1.3.6.1.2.1.2.2.1.17 | 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. |
| INDISCARDS | .1.3.6.1.2.1.2.2.1.13 | 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. |
| OUTDISCARDS | .1.3.6.1.2.1.2.2.1.19 | The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space. |
| INUNKNOWNPROTOS | .1.3.6.1.2.1.2.2.1.15 | The number of packets received via the interface which were discarded because of an unknown or unsupported protocol. |
| INNUCAST | .1.3.6.1.2.1.2.2.1.12 | The number of non-unicast (i.e., subnetwork- broadcast or subnetwork-multicast) packets delivered to a higher-layer protocol. |
| OUTNUCAST | .1.3.6.1.2.1.2.2.1.18 | The total number of packets that higher-level protocols requested be transmitted to a non- unicast (i.e., a subnetwork-broadcast or subnetwork-multicast) address, including those that were discarded or not sent. |
| HCINMCAST | .1.3.6.1.2.1.31.1.1.1.8 | The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were addressed to a multicast address at this sub-layer. For a MAC layer protocol, this includes both Group and Functional addresses. This object is a 64-bit version of ifInMulticastPkts. |
| HCOUTMCAST | .1.3.6.1.2.1.31.1.1.1.12 | The total number of packets that higher-level protocols requested 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. This object is a 64-bit version of ifOutMulticastPkts. |
| HCINBCAST | .1.3.6.1.2.1.31.1.1.1.9 | 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. This object is a 64-bit version of ifInBroadcastPkts. |
| HCOUTBCAST | .1.3.6.1.2.1.31.1.1.1.13 | The total number of packets that higher-level protocols requested be transmitted, and which were addressed to a broadcast address at this sub-layer, including those that were discarded or not sent. This object is a 64-bit version of ifOutBroadcastPkts. |
Discard rate is the total number of Discarded packets / total number of packets transmitted and received in percentage.
32-bit :
(InDiscards+OutDiscards)*100/(INUCAST + OUTUCAST + INDISCARDS + OUTDISCARDS + INERRORS + OUTERRORS + INUNKNOWNPROTOS + HCINBCAST + HCOUTBCAST)
64-bit :>
(InDiscards+OutDiscards)*100/(INUCAST + OUTUCAST + INDISCARDS + OUTDISCARDS + INERRORS + OUTERRORS + INUNKNOWNPROTOS + HCINMCAST + HCOUTMCAST + HCINBCAST + HCOUTBCAST)
| InErrors | .1.3.6.1.2.1.2.2.1.14 | The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. |
| OutErrors | .1.3.6.1.2.1.2.2.1.20 | The number of outbound packets that could not be transmitted because of errors. |
| INUCAST | .1.3.6.1.2.1.2.2.1.11 | The number of subnetwork-unicast packets delivered to a higher-layer protocol. |
| OUTUCAST | .1.3.6.1.2.1.2.2.1.17 | 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. |
| INDISCARDS | .1.3.6.1.2.1.2.2.1.13 | 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. |
| OUTDISCARDS | .1.3.6.1.2.1.2.2.1.19 | The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space. |
| INUNKNOWNPROTOS | .1.3.6.1.2.1.2.2.1.15 | The number of packets received via the interface which were discarded because of an unknown or unsupported protocol. |
| INNUCAST | .1.3.6.1.2.1.2.2.1.12 | The number of non-unicast (i.e., subnetwork- broadcast or subnetwork-multicast) packets delivered to a higher-layer protocol. |
| OUTNUCAST | .1.3.6.1.2.1.2.2.1.18 | The total number of packets that higher-level protocols requested be transmitted to a non- unicast (i.e., a subnetwork-broadcast or subnetwork-multicast) address, including those that were discarded or not sent. |
| HCINMCAST | .1.3.6.1.2.1.31.1.1.1.8 | The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were addressed to a multicast address at this sub-layer. For a MAC layer protocol, this includes both Group and Functional addresses. This object is a 64-bit version of ifInMulticastPkts. |
| HCOUTMCAST | .1.3.6.1.2.1.31.1.1.1.12 | The total number of packets that higher-level protocols requested 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. This object is a 64-bit version of ifOutMulticastPkts. |
| HCINBCAST | .1.3.6.1.2.1.31.1.1.1.9 | 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. This object is a 64-bit version of ifInBroadcastPkts. |
| HCOUTBCAST | .1.3.6.1.2.1.31.1.1.1.13 | The total number of packets that higher-level protocols requested be transmitted, and which were addressed to a broadcast address at this sub-layer, including those that were discarded or not sent. This object is a 64-bit version of ifOutBroadcastPkts. |
This refers to the total number of bytes transferred and received in the interface.
Rx Bytes = INOCTETS
Tx Bytes = OUTOCTETS
Total Bytes = INOCTETS + OUTOCTETS
| InOctets (bytes) | The difference between two ifInOctets collected at subsequent polls. | |
| OutOctets(bytes) | The difference between two ifOutOctets collected at subsequent polls. | |
| ifInOctets (bytes) | .1.3.6.1.2.1.2.2.1.10 | The total number of octets received on the interface, including framing characters. |
| ifOutOctets(bytes) | .1.3.6.1.2.1.2.2.1.16 | The total number of octets transmitted out of the interface, including framing characters. |
This refers to the total number of Error and Discard packets transmitted or received via the interface.
RxError = InErrors
TxError = INDISCARDS
RxDiscard = OutErrors
TxDiscard = OUTDISCARDS
| InErrors | .1.3.6.1.2.1.2.2.1.14 | The number of inbound packets that contained errors preventing them from being deliverable to a higher-layer protocol. |
| OutErrors | .1.3.6.1.2.1.2.2.1.20 | The number of outbound packets that could not be transmitted because of errors. |
| INDISCARDS | .1.3.6.1.2.1.2.2.1.13 | 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. |
| OUTDISCARDS | .1.3.6.1.2.1.2.2.1.19 | The number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space. |