Load and performance analysis of IP router
System wide IP version specific
traffic statistics
Per-interface IP statistics
IP Statictics
The number of input datagrams forwarded by the system to their final destination
ipForwDatagrams
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsInForwDatagrams
The number of IP Datagrams discarded because no route could be found to transmit them to their destination
ipInDiscards
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsInDiscards
The number of IP Datagrams discarded due to lack of buffer resources
The number of input Datagrams discarded because the IP address in their IP header's destination field was not a valid address to be received.
The number of input Datagrams discarded due to errors in their IP headers particularly Time-To-Live counter expiration.
The number of locally-addressed IP Datagrams received successfully but discarded because of an unknown or unsupported protocol.
Percentage of IP Datagrams delivered to the IP Process to the total inbound Datagrams received.
ipInDelivers * 100 / ipInReceives
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsInDelivers.index * 100 / ipSystemStatsInReceives.index
Remark: These object are defined in SNMP table thus index value is required. Its index is formed from a single sub-id that represents the address type (IPv4 and IPv6) for which the statistics were counted.
Percentage of IP Datagrams discards due to no buffers.
ipInDiscards * 100 / ipInReceives
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsInDiscards.index * 100 / ipSystemStatsInReceives.index
Remark: These object are defined in SNMP table thus index value is required. Its index is formed from a single sub-id that represents the address type (IPv4 and IPv6) for which the statistics were counted.
Percentage of IP Datagrams distant to Remote Address destinations to the total inbound Datagrams received.
ipForwDatagrams * 100 / ipInReceives
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsInForwDatagrams.index * 100 / ipSystemStatsInReceives.index
Percentage of IP Datagrams Discards to the IP Process to the total outbound Request Datagrams.
ipOutDiscards * 100 / ipOutRequests
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsOutDiscards.index * 100 / ipSystemStatsOutRequests.index
Remark: These object are defined in SNMP table thus index value is required. Its index is formed from a single sub-id that represents the address type (IPv4 and IPv6) for which the statistics were counted.
Number of Routing Process Invocations.
ipForwDatagrams + ipOutRequests
Or by using IP-MIB (RFC 4293) no IP version dependant
ipSystemStatsInForwDatagrams.index + ipSystemStatsOutRequests.index
Remark: These object are defined in SNMP table thus index value is required. Its index is formed from a single sub-id that represents the address type (IPv4 and IPv6) for which the statistics were counted.
IP
traffic statistics from RFC 1213
These objects have been deprecated as a new IP version neutral
table has been added in IP-MIB RFC4293)
| Name |
Description |
| ipForwarding |
The indication of whether this entity is acting
as an IP gateway in respect to the forwarding of
datagrams received by, but not addressed to, this
entity. IP gateways forward datagrams. IP hosts
do not (except those source-routed via the host).
Note that for some managed nodes, this object may
take on only a subset of the values possible.
Accordingly, it is appropriate for an agent to
return a `badValue' response if a management
station attempts to change this object to an
inappropriate value. |
| ipDefaultTTL |
The default value inserted into the Time-To-Live
field of the IP header of datagrams originated at
this entity, whenever a TTL value is not supplied
by the transport layer protocol. |
| ipInReceives |
The total number of input datagrams received from
interfaces, including those received in error. |
| ipInHdrErrors |
The number of input datagrams discarded due to
errors in their IP headers, including bad
checksums, version number mismatch, other format
errors, time-to-live exceeded, errors discovered
in processing their IP options, etc. |
| ipInAddrErrors |
The number of input datagrams discarded because
the IP address in their IP header's destination
field was not a valid address to be received at
this entity. This count includes invalid
addresses (e.g., 0.0.0.0) and addresses of
unsupported Classes (e.g., Class E). For entities
which are not IP Gateways and therefore do not
forward datagrams, this counter includes datagrams
discarded because the destination address was not
a local address. |
| ipForwDatagrams |
The number of input datagrams for which this
entity was not their final IP destination, as a
result of which an attempt was made to find a
route to forward them to that final destination.
In entities which do not act as IP Gateways, this
counter will include only those packets which were
Source-Routed via this entity, and the Source-
Route option processing was successful. |
| ipInUnknownProtos |
The number of locally-addressed datagrams
received successfully but discarded because of an
unknown or unsupported protocol. |
| ipInDiscards |
The number of input IP datagrams for which no
problems were encountered to prevent their
continued processing, but which were discarded
(e.g., for lack of buffer space). Note that this
counter does not include any datagrams discarded
while awaiting re-assembly. |
| ipInDelivers |
The total number of input datagrams successfully
delivered to IP user-protocols (including ICMP). |
| ipOutRequests |
The total number of IP datagrams which local IP
user-protocols (including ICMP) supplied to IP in
requests for transmission. Note that this counter
does not include any datagrams counted in
ipForwDatagrams. |
| ipOutDiscards |
The number of output IP datagrams for which no
problem was encountered to prevent their
transmission to their destination, but which were
discarded (e.g., for lack of buffer space). Note
that this counter would include datagrams counted
in ipForwDatagrams if any such packets met this
(discretionary) discard criterion. |
| ipOutNoRoutes |
The number of IP datagrams discarded because no
route could be found to transmit them to their
destination. Note that this counter includes any
packets counted in ipForwDatagrams which meet this
`no-route' criterion. Note that this includes any
datagarms which a host cannot route because all of
its default gateways are down. |
| ipReasmTimeout |
The maximum number of seconds which received
fragments are held while they are awaiting
reassembly at this entity. |
| ipReasmReqds |
The number of IP fragments received which needed
to be reassembled at this entity. |
| ipReasmOKs |
The number of IP datagrams successfully re-
assembled. |
| ipReasmFails |
The number of failures detected by the IP re-
assembly algorithm (for whatever reason: timed
out, errors, etc). Note that this is not
necessarily a count of discarded IP fragments
since some algorithms (notably the algorithm in
RFC 815) can lose track of the number of fragments
by combining them as they are received. |
| ipFragOKs |
The number of IP datagrams that have been
successfully fragmented at this entity. |
| ipFragFails |
The number of IP datagrams that have been
discarded because they needed to be fragmented at
this entity but could not be, e.g., because their
Don't Fragment flag was set. |
| ipFragCreates |
The number of IP datagram fragments that have
been generated as a result of fragmentation at
this entity. |
System wide IP version specific
traffic statistics ( ipSystemStatsTable from IP-MIB RFC4293)
The table containing system wide, IP version specific
traffic statistics. This table and the ipIfStatsTable
contain similar objects whose difference is in their
granularity. Where this table contains system wide traffic
statistics, the ipIfStatsTable contains the same statistics
but counted on a per-interface basis.
Its index is formed from a single sub-id that represents the address type(IPv4 and IPv6) for which the statistics were counted.
| ipSystemStatsInReceives |
The total number of input IP datagrams received, including
those received in error.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInReceives |
The total number of input IP datagrams received, including
those received in error. This object counts the same
datagrams as ipSystemStatsInReceives, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInOctets |
The total number of octets received in input IP datagrams,
including those received in error. Octets from datagrams
counted in ipSystemStatsInReceives MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInOctets |
The total number of octets received in input IP datagrams,
including those received in error. This object counts the
same octets as ipSystemStatsInOctets, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInHdrErrors |
The number of input IP datagrams discarded due to errors in
their IP headers, including version number mismatch, other
format errors, hop count exceeded, errors discovered in
processing their IP options, etc.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInNoRoutes |
The number of input IP datagrams discarded because no route
could be found to transmit them to their destination.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInAddrErrors |
The number of input IP datagrams discarded because the IP
address in their IP header's destination field was not a
valid address to be received at this entity. This count
includes invalid addresses (e.g., ::0). For entities
that are not IP routers and therefore do not forward
datagrams, this counter includes datagrams discarded
because the destination ddress was not a local address.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInUnknownProtos |
The number of locally-addressed IP datagrams received
successfully but discarded because of an unknown or
unsupported protocol.
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInTruncatedPkts |
The number of input IP datagrams discarded because the
datagram frame didn't carry enough data.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInForwDatagrams |
The number of input datagrams for which this entity was not
their final IP destination and for which this entity
attempted to find a route to forward them to that final
destination. In entities that do not act as IP routers,
this counter will include only those datagrams that were
Source-Routed via this entity, and the Source-Route
processing was successful.
When tracking interface statistics, the counter of the
incoming interface is incremented for each datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInForwDatagrams |
The number of input datagrams for which this entity was not
their final IP destination and for which this entity
attempted to find a route to forward them to that final
destination. This object counts the same packets as
ipSystemStatsInForwDatagrams, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsReasmReqds |
The number of IP fragments received that needed to be
reassembled at this interface.
When tracking interface statistics, the counter of the
interface to which these fragments were addressed is
incremented. This interface might not be the same as the
input interface for some of the fragments.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsReasmOKs |
The number of IP datagrams successfully reassembled.
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsReasmFails |
The number of failures detected by the IP re-assembly
algorithm (for whatever reason: timed out, errors, etc.).
Note that this is not necessarily a count of discarded IP
fragments since some algorithms (notably the algorithm in
RFC 815) can lose track of the number of fragments by
combining them as they are received.
When tracking interface statistics, the counter of the
interface to which these fragments were addressed is
incremented. This interface might not be the same as the
input interface for some of the fragments.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInDiscards |
The number of input IP datagrams for which no problems were
encountered to prevent their continued processing, but
were discarded (e.g., for lack of buffer space). Note that
this counter does not include any datagrams discarded while
awaiting re-assembly.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInDelivers |
The total number of datagrams successfully delivered to IP
user-protocols (including ICMP).
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInDelivers |
The total number of datagrams successfully delivered to IP
user-protocols (including ICMP). This object counts the
same packets as ipSystemStatsInDelivers, but allows for
larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutRequests |
The total number of IP datagrams that local IP user-
protocols (including ICMP) supplied to IP in requests for
transmission. Note that this counter does not include any
datagrams counted in ipSystemStatsOutForwDatagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutRequests |
The total number of IP datagrams that local IP user-
protocols (including ICMP) supplied to IP in requests for
transmission. This object counts the same packets as
ipSystemStatsOutRequests, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutNoRoutes |
The number of locally generated IP datagrams discarded
because no route could be found to transmit them to their
destination.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutForwDatagrams |
The number of datagrams for which this entity was not their
final IP destination and for which it was successful in
finding a path to their final destination. In entities
that do not act as IP routers, this counter will include
only those datagrams that were Source-Routed via this
entity, and the Source-Route processing was successful.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
forwarded datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutForwDatagrams |
The number of datagrams for which this entity was not their
final IP destination and for which it was successful in
finding a path to their final destination. This object
counts the same packets as ipSystemStatsOutForwDatagrams,
but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutDiscards |
The number of output IP datagrams for which no problem was
encountered to prevent their transmission to their
destination, but were discarded (e.g., for lack of
buffer space). Note that this counter would include
datagrams counted in ipSystemStatsOutForwDatagrams if any
such datagrams met this (discretionary) discard criterion.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutFragReqds |
The number of IP datagrams that would require fragmentation
in order to be transmitted.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutFragOKs |
The number of IP datagrams that have been successfully
fragmented.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutFragFails |
The number of IP datagrams that have been discarded because
they needed to be fragmented but could not be. This
includes IPv4 packets that have the DF bit set and IPv6
packets that are being forwarded and exceed the outgoing
link MTU.
When tracking interface statistics, the counter of the
outgoing interface is incremented for an unsuccessfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutFragCreates |
The number of output datagram fragments that have been
generated as a result of IP fragmentation.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutTransmits |
The total number of IP datagrams that this entity supplied
to the lower layers for transmission. This includes
datagrams generated locally and those forwarded by this
entity.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutTransmits |
The total number of IP datagrams that this entity supplied
to the lower layers for transmission. This object counts
the same datagrams as ipSystemStatsOutTransmits, but allows
for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutOctets |
The total number of octets in IP datagrams delivered to the
lower layers for transmission. Octets from datagrams
counted in ipSystemStatsOutTransmits MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutOctets |
The total number of octets in IP datagrams delivered to the
lower layers for transmission. This objects counts the same
octets as ipSystemStatsOutOctets, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInMcastPkts |
The number of IP multicast datagrams received.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInMcastPkts |
The number of IP multicast datagrams received. This object
counts the same datagrams as ipSystemStatsInMcastPkts but
allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInMcastOctets |
The total number of octets received in IP multicast
datagrams. Octets from datagrams counted in
ipSystemStatsInMcastPkts MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInMcastOctets |
The total number of octets received in IP multicast
datagrams. This object counts the same octets as
ipSystemStatsInMcastOctets, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutMcastPkts |
The number of IP multicast datagrams transmitted.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutMcastPkts |
The number of IP multicast datagrams transmitted. This
object counts the same datagrams as
ipSystemStatsOutMcastPkts, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutMcastOctets |
The total number of octets transmitted in IP multicast
datagrams. Octets from datagrams counted in
ipSystemStatsOutMcastPkts MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutMcastOctets |
The total number of octets transmitted in IP multicast
datagrams. This object counts the same octets as
ipSystemStatsOutMcastOctets, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsInBcastPkts |
The number of IP broadcast datagrams received.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCInBcastPkts |
The number of IP broadcast datagrams received. This object
counts the same datagrams as ipSystemStatsInBcastPkts but
allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of ipSystemStatsDiscontinuityTime. |
| ipSystemStatsOutBcastPkts |
The number of IP broadcast datagrams transmitted.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsHCOutBcastPkts |
The number of IP broadcast datagrams transmitted. This
object counts the same datagrams as
ipSystemStatsOutBcastPkts, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipSystemStatsDiscontinuityTime. |
| ipSystemStatsDiscontinuityTime |
The value of sysUpTime on the most recent occasion at which
any one or more of this entry's counters suffered a
discontinuity.
If no such discontinuities have occurred since the last re-
initialization of the local management subsystem, then this
object contains a zero value. |
| ipSystemStatsRefreshRate |
The minimum reasonable polling interval for this entry.
This object provides an indication of the minimum amount of
time required to update the counters in this entry. |
Per-interface IP statistics (ipIfStatsTable from IP-MIB RFC4293)
The table containing per-interface traffic statistics. This
table and the ipSystemStatsTable contain similar objects
whose difference is in their granularity. Where this table
contains per-interface statistics, the ipSystemStatsTable
contains the same statistics, but counted on a system wide
basis.
Its index is formed from two sub-ids. The first represents the address type (IPv4 and IPv6), and the interface within that address type is represented by the second sub-id.
| ipIfStatsInReceives |
The total number of input IP datagrams received, including
those received in error.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInReceives |
The total number of input IP datagrams received, including
those received in error. This object counts the same
datagrams as ipIfStatsInReceives, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInOctets |
The total number of octets received in input IP datagrams,
including those received in error. Octets from datagrams
counted in ipIfStatsInReceives MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInOctets |
The total number of octets received in input IP datagrams,
including those received in error. This object counts the
same octets as ipIfStatsInOctets, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInHdrErrors |
The number of input IP datagrams discarded due to errors in
their IP headers, including version number mismatch, other
format errors, hop count exceeded, errors discovered in
processing their IP options, etc.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInNoRoutes |
The number of input IP datagrams discarded because no route
could be found to transmit them to their destination.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInAddrErrors |
The number of input IP datagrams discarded because the IP
address in their IP header's destination field was not a
valid address to be received at this entity. This count
includes invalid addresses (e.g., ::0). For entities that
are not IP routers and therefore do not forward datagrams,
this counter includes datagrams discarded because the
destination address was not a local address.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInUnknownProtos |
The number of locally-addressed IP datagrams received
successfully but discarded because of an unknown or
unsupported protocol.
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInTruncatedPkts |
The number of input IP datagrams discarded because the
datagram frame didn't carry enough data.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInForwDatagrams |
The number of input datagrams for which this entity was not
their final IP destination and for which this entity
attempted to find a route to forward them to that final
destination. In entities that do not act as IP routers,
this counter will include only those datagrams that were
Source-Routed via this entity, and the Source-Route
processing was successful.
When tracking interface statistics, the counter of the
incoming interface is incremented for each datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInForwDatagrams |
The number of input datagrams for which this entity was not
their final IP destination and for which this entity
attempted to find a route to forward them to that final
destination. This object counts the same packets as
ipIfStatsInForwDatagrams, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsReasmReqds |
The number of IP fragments received that needed to be
reassembled at this interface.
When tracking interface statistics, the counter of the
interface to which these fragments were addressed is
incremented. This interface might not be the same as the
input interface for some of the fragments.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsReasmOKs |
The number of IP datagrams successfully reassembled.
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsReasmFails |
The number of failures detected by the IP re-assembly
algorithm (for whatever reason: timed out, errors, etc.).
Note that this is not necessarily a count of discarded IP
fragments since some algorithms (notably the algorithm in
RFC 815) can lose track of the number of fragments by
combining them as they are received.
When tracking interface statistics, the counter of the
interface to which these fragments were addressed is
incremented. This interface might not be the same as the
input interface for some of the fragments.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInDiscards |
The number of input IP datagrams for which no problems were
encountered to prevent their continued processing, but
were discarded (e.g., for lack of buffer space). Note that
this counter does not include any datagrams discarded while
awaiting re-assembly.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInDelivers |
The total number of datagrams successfully delivered to IP
user-protocols (including ICMP).
When tracking interface statistics, the counter of the
interface to which these datagrams were addressed is
incremented. This interface might not be the same as the
input interface for some of the datagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInDelivers |
The total number of datagrams successfully delivered to IP
user-protocols (including ICMP). This object counts the
same packets as ipIfStatsInDelivers, but allows for larger
values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutRequests |
The total number of IP datagrams that local IP user-
protocols (including ICMP) supplied to IP in requests for
transmission. Note that this counter does not include any
datagrams ounted in ipIfStatsOutForwDatagrams.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutRequests |
The total number of IP datagrams that local IP user-
protocols (including ICMP) supplied to IP in requests for
transmission. This object counts the same packets as
ipIfStatsOutRequests, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutForwDatagrams |
The number of datagrams for which this entity was not their
final IP destination and for which it was successful in
finding a path to their final destination. In entities
that do not act as IP routers, this counter will include
only those datagrams that were Source-Routed via this
entity, and the Source-Route processing was successful.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
forwarded datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutForwDatagrams |
The number of datagrams for which this entity was not their
final IP destination and for which it was successful in
finding a path to their final destination. This object
counts the same packets as ipIfStatsOutForwDatagrams, but
allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutDiscards |
The number of output IP datagrams for which no problem was
encountered to prevent their transmission to their
destination, but were discarded (e.g., for lack of
buffer space). Note that this counter would include
datagrams counted in ipIfStatsOutForwDatagrams if any such
datagrams met this (discretionary) discard criterion.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutFragReqds |
The number of IP datagrams that would require fragmentation
in order to be transmitted.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutFragOKs |
The number of IP datagrams that have been successfully
fragmented.
When tracking interface statistics, the counter of the
outgoing interface is incremented for a successfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutFragFails |
The number of IP datagrams that have been discarded because
they needed to be fragmented but could not be. This
includes IPv4 packets that have the DF bit set and IPv6
packets that are being forwarded and exceed the outgoing
link MTU.
When tracking interface statistics, the counter of the
outgoing interface is incremented for an unsuccessfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutFragCreates |
The number of output datagram fragments that have been
generated as a result of IP fragmentation.
When tracking interface statistics, the counter of the
outgoing interface is ncremented for a successfully
fragmented datagram.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutTransmits |
The total number of IP datagrams that this entity supplied
to the lower layers for transmission. This includes
datagrams generated locally and those forwarded by this
entity.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutTransmits |
The total number of IP datagrams that this entity supplied
to the lower layers for transmission. This object counts
the same datagrams as ipIfStatsOutTransmits, but allows for
larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutOctets |
The total number of octets in IP datagrams delivered to the
lower layers for transmission. Octets from datagrams
counted in ipIfStatsOutTransmits MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutOctets |
The total number of octets in IP datagrams delivered to the
lower layers for transmission. This objects counts the same
octets as ipIfStatsOutOctets, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInMcastPkts |
The number of IP multicast datagrams received.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInMcastPkts |
The number of IP multicast datagrams received. This object
counts the same datagrams as ipIfStatsInMcastPkts, but
allows for larger values.
Discontinuities in the value of this ounter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInMcastOctets |
The total number of octets received in IP multicast
datagrams. Octets from datagrams counted in
ipIfStatsInMcastPkts MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInMcastOctets |
The total number of octets received in IP multicast
datagrams. This object counts the same octets as
ipIfStatsInMcastOctets, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutMcastPkts |
The number of IP multicast datagrams transmitted.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutMcastPkts |
The number of IP multicast datagrams transmitted. This
object counts the same datagrams as ipIfStatsOutMcastPkts,
but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutMcastOctets |
The total number of octets transmitted in IP multicast
datagrams. Octets from datagrams counted in
ipIfStatsOutMcastPkts MUST be counted here.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutMcastOctets |
The total number of octets transmitted in IP multicast
datagrams. This object counts the same octets as
ipIfStatsOutMcastOctets, but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsInBcastPkts |
The number of IP broadcast datagrams received.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCInBcastPkts |
The number of IP broadcast datagrams received. This object
counts the same datagrams as ipIfStatsInBcastPkts, but
allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsOutBcastPkts |
The number of IP broadcast datagrams transmitted.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime. |
| ipIfStatsHCOutBcastPkts |
The number of IP broadcast datagrams transmitted. This
object counts the same datagrams as ipIfStatsOutBcastPkts,
but allows for larger values.
Discontinuities in the value of this counter can occur at
re-initialization of the management system, and at other
times as indicated by the value of
ipIfStatsDiscontinuityTime">ipIfStatsDiscontinuityTime. |
| ipIfStatsDiscontinuityTime |
The value of sysUpTime on the most recent occasion at which
any one or more of this entry's counters suffered a
discontinuity.
If no such discontinuities have occurred since the last re-
initialization of the local management subsystem, then this
object contains a zero value. |
| ipIfStatsRefreshRate |
The minimum reasonable polling interval for this entry.
This object provides an indication of the minimum amount of
time required to update the counters in this entry. |
|
