AUTHENTICATION FAILURES
Support: L1,L2,IP
Number of times a PDU has been received on this circuit with an
Authentication Information field that is incompatible with the PDU type.
CALLS FAILED
Support: All
Number of unsuccessful call attempts on this circuit. This attribute is
supported only if the characteristic type is x25 da.
CALLS PLACED
Support: All
Number of call attempts successful and unsuccessful on this circuit.
This attribute is supported only if the characteristic type is
x25 da.
CHANGES IN ADJACENCY STATE
Support: All
Number of times the status attribute state of an adjacency belonging
to this circuit changes from Up to Down or Initializing, or the
reverse.
CHANGES IN IP ADJACENCY STATE
Support: IP
Number of times the status attribute state of an IP adjacency
belonging to this circuit changes from Up to some other state, or the
reverse.
CHANGES IN RIP NEIGHBOR STATE
Support: L2,IP
Number of times the RIP state of IP adjacencies belonging to this
circuit have changed. This attribute is supported only if the routing
entity's characteristic routing protocols supported includes the
routing protocol RIP.
CIRCUIT CHANGES
Support: All
Number of times that the status attribute state has changed from on
to off, or vice versa.
CONGESTION DISCARDS
Support: L1,L2
Number of data-and error-report NPDUs that have been discarded, before
or after fragmentation, because of congestion. Any other discarding
will already have been done by the forwarding process. This number
includes all PDUs recognized by the receive process as data PDUs
DECnet-Plus data- and error-report PDUs and Phase IV data packets,
even though they may subsequently be discarded for some reason.
CONTROL PDUS RECEIVED
Support: All
Number of control PDUs that have been received on this circuit. This
number includes all Network layer PDUs, with the exception of
DECnet-Plus data and error report PDUs and Phase IV data PDUs.
CONTROL PDUS SENT
Support: All
Number of control PDUs that have been sent on this circuit.
CORRUPTED HELLO PDUS RECEIVED
Support: All
Number of times an ES-IS end system to intermediate system or IS-IS
intermediate system to intermediate system Hello PDU has been
received on this circuit that either cannot be parsed or contains an
incorrect checksum.
CORRUPTED LSPS RECEIVED
Support: L1,L2
Number of times a corrupted link state packet has been received on this
circuit.
DA ADJACENCY CHANGES
Support: All
Number of DA adjacency change events that have been generated.
DATA PDUS FORWARDED
Support: L1,L2
Number of data- and error-report NPDUs that have been forwarded onto
this circuit either from another circuit or from a local port. This
number includes all PDUs recognized by the receive process as data
PDUs DECnet-Plus data- and error-report PDUs and Phase IV data packets,
even though they may subsequently be discarded for some reason.
DATA PDUS FRAGMENTED
Support: All
Number of data NPDUs that have been fragmented on this circuit.
DATA PDUS RECEIVED
Support: All
Number of data- and error-report NPDUs that have been received on this
circuit. This number includes all PDUs recognized by the receive
process as data PDUs DECnet-Plus data and error report PDUs and Phase
IV data packets, even though they may subsequently be discarded for
some reason.
DATA PDUS TRANSMITTED
Support: All
Number of data- and error-report NPDUs, after fragmentation, that have
been delivered to the port for transmission on this circuit. This
number includes all PDUs recognized by the receive process as data PDUs
DECnet-Plus data- and error-report PDUs and Phase IV data packets,
even though they may subsequently be discarded for some reason.
EXCEEDED MAXIMUM SVC ADJACENCIES
Support: End,L2
Number of exceeded maximum svc adjacency events that have been
generated. This counter is supported only if the circuit's type is
set to x25 da; only for nodes that are end nodes; and if the system
supports dual routing both DECnet and IP routing.
ID REACHABILITY CHANGES
Support: All
Number of ID reachability change events that have been generated.
INITIALIZATION FAILURES
Support: All
Number of times that an attempt to initialize an adjacent node over
this circuit has failed, either because of version skew or area
mismatch.
IP FRAGMENTATION FAILURE DISCARDS
Support: IP
Number of IP packets discarded because fragmentation was required to
transmit them, but the IP header requested "do not fragment."
IP FRAGMENTS CREATED
Support: IP
Number of IP fragments created for transmission on this circuit.
IP PACKETS FORWARDED
Support: IP
Number of IP packets forwarded on this circuit before fragmentation.
These IP packets may be from another circuit or from a local port.
Note that this value includes those IP packets counted in the ip
send discards counter.
IP PACKETS FRAGMENTED
Support: IP
Number of IP packets that have been fragmented on this circuit.
IP PACKETS RECEIVED
Support: IP
Number of IP packets received on this circuit. This value includes all
types of IP packet control, data, etc., and those that may
subsequently be discarded for any reason.
IP RECEIVED DISCARDS
Support: IP
Number of IP packets that have been received and then discarded because
of congestion.
IP SEND DISCARDS
Support: IP
Number of IP packets for transmission that have been discarded because
of congestion.
IRRECOVERABLE SVC FAILURES
Support: All
Number of times that the number of re-call attempts on this circuit
has become equal to the value of the characteristic maximum call
attempts. This attribute is supported only if the characteristic
type is set to x25 static outgoing.
LAN L1 DESIGNATED ROUTER CHANGES
Support: L1,L2
Number of times the local node has either elected itself or resigned
as the LAN level 1 designated router on this circuit. This attribute
is supported only if the circuit's characteristic type is set to
csma-cd.
LAN L2 DESIGNATED ROUTER CHANGES
Support: L2
Number of times the local node has either elected itself or resigned
as the LAN level 2 designated router on this circuit.
LAN PHASEIV DESIGNATED ROUTER CHANGES
Support: L1,L2
Number of times the local node has either elected itself or resigned as
the LAN Phase IV designated router on this circuit.
REDIRECT DISCARDS
Support: End
Number of Redirect PDUs that have been discarded because of
insufficient cache memory.
REJECTED ADJACENCIES
Support: All
Number of times an attempt to create a new adjacency using this
circuit has failed because of insufficient resources.
REJECTED IP ADJACENCIES
Support: L2,IP
Number of times an attempt to automatically create a new IP adjacency
to an IP router has failed because of lack of resources.
RIP ERRORS RECEIVED
Support: L2,IP
Number of RIP messages received with any kind of received error on this
circuit. This attribute is supported only if the routing entity's
characteristic routing protocols supported includes the routing
protocol RIP.
SEGMENTATION FAILURE DISCARDS
Support: L1,L2
Number of data NPDUs that have been discarded because segmentation was
required to send them on this circuit but was not permitted in the
NPDU header.
VERIFICATION REJECT EVENTS
Number of verification reject events that have been generated. This
attribute is supported only if the characteristic type is set to
DDCMP, HDLC, X25 static incoming, X25 static outgoing, or X25
permanent.