NCLHELP.HLB  —  Event Messages, routing
 o  address unreachable pdu discard

    Support: All

    Generated when a data PDU is discarded because the destination
    address is unreachable.

    Arguments:

    discard     Reason why the PDU was discarded.
    reason
                destination     The destination address is unknown.
                address unknown

                destination     The destination address is
                address         currently unreachable.
                unreachable

                duplicate       An optional PDU field occurs twice.
                option

                header syntax   There is a format error in the PDU
                error           header.

                incomplete      The received data did not contain a
                pdu             complete PDU.
                received

                incorrect       The checksum is incorrect.
                checksum

                lifetime        The PDU's lifetime expired while it was
                expired         being reassembled.
                during
                reassembly

                lifetime        The PDU's lifetime expired while it was
                expired         in transit.
                while data
                unit in
                transit

                pdu             No buffers were available to forward the
                discarded       packet.
                due to
                congestion

                protocol        Unable to translate a DECnet-Plus format
                procedure       PDU into a Phase IV format PDU.
                error

                reason not      No further information available.
                specified

                reassembly      Insufficient memory available to
                interference    reassemble a PDU.

                segmentation    The PDU requires fragmentation, but the
                required, but   originator did not permit this.
                not permitted

                unsupported     The PDU contained an unrecognized and
                option not      unsupported PDU option.
                specified

                unsupported     The PDU version is not supported.
                protocol
                version

                unsupported     The sender requested an unsupported form
                recording of    of route recording.
                route option

                unsupported     The sender requested an unsupported form
                source          of source routing.
                routing
                option

                phase iv        Phase IV destination address of the
                forwarding      Phase IV data packet.
                address

                phase iv        Phase IV source address of the Phase IV
                source          data packet.
                address

                forwarding      Destination NSAP address.
                address

                receiving       Name of the adjacency on which the PDU
                adjacency       was received.  For an end node, only the
                                circuit may be specified.

                source          Source NSAP address of the data NPDU.
                address

 o  aged ip packet discard

    Support: IP

    Generated when an IP packet is discarded because the interval
    specified in its time to live field has expired.

 o  aged pdu discard

    Support: L1,L2

    Generated when a data PDU is discarded because its lifetime has
    expired.

    Arguments:

    discard     Reason why the PDU was discarded. See possible
    reason      reasons described under the discard reason argument
                of the address unreachable pdu discard event. (Not
                all of these argument values can be generated by this
                event.)

    phase iv    Phase IV header of the Phase IV packet causing this
    pdu header  event.

    pdu header  Contents of the header of the data PDU that was
                discarded.

 o  attempt to exceed maximum sequence number

    Support: L1,L2

    Generated when an attempt is made to increase the sequence
    number of a link-state packet beyond the maximum allowed sequence
    number.

 o  corrupted lsp detected

    Support: L1,L2

    Generated when a corrupted link-state packet is detected in
    memory.

 o  egp message discard

    Support: All

    Generated when EGP Message is discarded.

 o  ip address unreachable packet discard

    Support: IP

    Generated when an IP packet is discarded because its destination
    is unreachable.

    Arguments:

    forwarding  IP address on which the forwarding decision for the
    IP address  IP packet was taken. This is usually the destination
                IP address.

    icmp        Value of the code field of the corresponding ICMP
    discard     destination unreachable message.
    reason
                host unreachable
                network unreachable
                source route failed

    LAN         Data link address of the broadcast circuit that
    address     is the previous hop for the packet. This argument
                is present only if the receiving entity argument
                identifies a broadcast circuit entity.

    receiving   Local name of the circuit entity corresponding to the
    entity      previous hop for the packet.

    source ip   Source IP address of the IP packet.
    address

 o  ip destination address packet error discard

    Support: IP

    Generated when an IP packet is discarded because the destination
    IP address is invalid (that is, it has an invalid format, or it
    refers to an unsupported network class).

    Arguments:

    destination Destination IP address in the IP packet.
    ip address

    LAN         Data link address of the broadcast circuit that
    address     is the previous hop for the packet. This argument
                is present only if the receiving entity argument
                identifies a broadcast circuit entity.

    receiving   Local name of the circuit entity corresponding to the
    entity      previous hop for the packet.

    source ip   Source IP address of the IP packet.
    address

 o  ip packet discard

    Support: IP

    Generated when an IP packet is discarded because of version
    number mismatch or bad checksum.

    Arguments:

    ip discard  Reason why the IP packet was discarded. See the ip
    reason      discard reason argument of the IP Packet Format Error
                event.

    ip header   IP header of the PDU that caused the event.
    receiving   Local name of the circuit entity corresponding to the
    entity      previous hop for the packet.

 o  ip packet format error

    Support: IP

    Generated when an IP packet is discarded because it contains a
    format error.

    Arguments:

    ip discard  Reason why the IP packet was discarded.
    reason
                duplicate option
                header syntax error
                incomplete packet received
                incorrect checksum
                incorrect header length
                incorrect total length
                option error
                protocol procedure error
                reason not specified
                received via broadcast
                unsupported option not specified
                unsupported protocol version
                unsupported security option

    ip header   IP header of the PDU that caused the event.
    LAN         Data link address of the broadcast circuit that
    address     is the previous hop for the packet. This argument
                is present only if the receiving entity argument
                identifies a broadcast circuit entity.

    pointer     Offset of the octet in the IP header that caused the
                format error.

    receiving   Local name of the circuit entity corresponding to the
    entity      previous hop for the packet.

 o  ip protocol unreachable packet discard

    Support: IP

    Generated when an IP packet is discarded because there was no
    port on the local system for the protocol type specified in the
    IP header.

    Arguments:

    destination Value of the protocol field in the IP packet.
    protocol

    icmp        Value of the code field of the corresponding ICMP
    discard     destination unreachable message.
    reason
                Port Unreachable
                Protocol Unreachable

    LAN         Data link address of the broadcast circuit that
    address     is the previous hop for the packet. This argument
                is present only if the Receiving Entity argument
                identifies a broadcast circuit entity.

    receiving   Local name of the circuit entity corresponding to the
    entity      previous hop for the packet.

    source ip   Source IP address of the IP packet.
    address

 o  ip source address packet error discard

    Support: IP

    Generated when an IP packet is discarded because the source IP
    address is invalid (that is, it has an invalid format, or it
    refers to an unsupported network class).

    Arguments:

    destination Destination IP address in the IP packet.
    ip address

    LAN         Data link address of the broadcast circuit that
    address     is the previous hop for the packet. This argument
                is present only if the Receiving Entity argument
                identifies a broadcast circuit entity.

    receiving   Local name of the circuit entity corresponding to the
    entity      previous hop for the packet.

    source ip   Source IP address of the IP packet.
    address

 o  lsp L1 database overload

    Support: L1,L2

    Generated when the status attribute L1 state changes from on to
    waiting, or vice versa.

    Arguments:

    source id   Source ID of the link-state packet.

    state       Current state.
    change
                recovered    Router operating normally.

                waiting      Router has failed to store a link-state
                             packet, and is operating in restricted
                             mode.

 o  lsp L2 database overload

    Support: L2

    Generated when the status attribute L2 state changes from on to
    waiting, or vice versa.

    Arguments:

    source id   Source ID of the link-state packet.

    state       Current state.
    change
                recovered    Router is operating normally.

                waiting      Router has failed to store a link-state
                             packet, and is operating in restricted
                             mode.

 o  manual address dropped from area

    Support: L1,L2

    Generated when one of the addresses in the manual area addresses
    set is ignored when computing an area address. The event is
    generated once for each address that is dropped.

    Argument:

    area        Area address that caused the maximum number of area
    address     addresses to be exceeded.

 o  own lsp purged

    Support: L1,L2

    Generated when a zero-aged copy of a node's own link-state packet
    is received from some other node. This represents an invalid
    attempt to purge the local node's link-state packet.

 o  pdu format error

    Support: All

    Generated when a data PDU is discarded because of a format error.

    Arguments:

    discard     Reason why the PDU was in error. See possible reasons
    reason      described under the discard reason argument of the
                address unreachable pdu discard event. (Not all of
                these argument values are generated by this event.)

    phase iv    Phase IV header of the Phase IV packet causing this
    pdu header  event.

    pdu header  Contents of the header of the data PDU that was
                discarded.

    receiving   Name of the adjacency on which the PDU was received.
    adjacency   For an end node on a LAN, only the circuit may be
                specified for Tru64 UNIX.

 o  phaseiv translation failure

    Support: All

    Generated when a PDU is discarded because it cannot be translated
    to Phase IV format.

    Arguments:

    receiving   Local entity name of the adjacency upon which the
    adjacency   PDU was received. For an end node on a LAN, only the
                circuit may be specified for Tru64 UNIX.

    pdu header  Data PDU header causing the event.

 o  sequence number skipped

    Support: L1,L2

    Generated when the sequence number of a link-state packet is
    incremented by more than 1. This usually occurs when a router is
    reenabled while its previous link-state packets are still stored
    in the network.

 o  unsupported option

    Generated when a data packet is received that contains an
    unsupported option in its header.

    Arguments:

    discard     Reason why the event was generated. See possible
    reason      reasons described under the discard reason argument
                of the address unreachable pdu discard event. (Not
                all of these argument values are generated by this
                event.)

    pdu header  Contents of the header of the data PDU that caused
                the event.

    receiving   Name of the adjacency on which the PDU was received.
    adjacency   For an end node on a LAN, only the circuit may be
                specified.

1  –  circuit

 o  adjacency state change

    Support: All

    Generated when the status attribute state of a routing circuit
    adjacency entity belonging to the circuit changes from up to
    down, or vice versa. For the purposes of this event, the state
    up/dormant is considered to be the same as up, and the state
    initializing is considered to be the same as down. For end nodes,
    this event is generated for point-to-point links only.

    Arguments:

    adjacency   The name of the adjacency to which the event refers.
    name

    adjacent    Node IDs of the adjacent node.
    node

    new         Current state of the adjacency.
    adjacency
    state       down         Adjacency state is now down.
                up           Adjacency state is now up.

    reason      Reason why the adjacency state changed to down.

                address out  The adjacency address is invalid.
                of range

                configura-   The adjacency has been incorrectly
                tion fault   configured.

                exceeded     The value of the characteristic maximum
                maximum      call attempts has been exceeded.
                call
                attempts

                area         The adjacent node's area address is
                mismatch     incorrect.

                call         An X.25 call to the adjacent node
                rejected     failed.

                checksum     A PDU's checksum was invalid.
                error

                circuit      The circuit has been disabled by network
                disabled     management.

                datalink     Exceeded maximum call attempts;
                failure      configuration fault.

                holding      No Hello traffic has been received
                timer        during the period of the Hello timer.
                expired

                maximum      There are more adjacent nodes than can
                broadcast    be supported on a LAN.
                end nodes
                exceeded

                maximum      There are more adjacent nodes than can
                broadcast    be supported on a LAN.
                routers
                exceeded

                neighbor     The address(es) in the hello has/have
                node         changed.
                change

                one way      The connectivity between two LAN
                connectiv-   routers appears to permit traffic in
                ity          one direction only.

                reserve      This may occur temporarily during a
                timer        change of designated router. Repeated
                expired      occurrences indicate a configuration or
                             hardware error.

                version      The adjacent node is the wrong version.
                skew

                wrong node   The adjacent routing node is of the
                type         wrong type.

 o  authentication failure

    Support: L1,L2,IP

    Generated when a PDU is received that contains an Authentication
    Information field that is incompatible with the PDU type.

    Arguments:

    adjacent        Node ID of the adjacent node.
    node

    authentication  Authentication level of the PDU: area, circuit,
    level           domain.

    pdu type        Type of the PDU.

                    L1 LSP       L2 PSNP
                    L1 CSNP      LAN L1 Hello
                    L1 PSNP      LAN L2 Hello
                    L2 LSP       PtPt Hello
                    L2 CSNP

 o  circuit change

    Support: All

    Generated when the status attribute state of the circuit changes
    from off to on, or vice versa.

    Argument:

    disable     The reason that the circuit status changed from on to
    reason      off. If the disable occurred because of a management
                circuit disable action, the reason is a Management
                Action (1). If the disable occurs for any other
                reason, it is a Protocol Action (0).
    new         Current state of the circuit.
    circuit
    state
                off          Circuit state is now off.
                on           Circuit state is now on.

 o  corrupted hello pdus received

    Support: All

    Generated when an ES-IS (end system to intermediate system) or
    IS-IS (intermediate system to intermediate system) Hello PDU is
    received that either cannot be parsed or contains an incorrect
    checksum.

 o  corrupted lsp received

    Support: L1,L2

    Generated when a corrupted link-state packet is received.

    Argument:

    adjacent    Node IDs of adjacent nodes.
    node

 o  corrupted phaseiv routing packet received

    Support: L1,L2

    Generated when a corrupted Phase IV routing packet is received.

    Argument:

    phase iv    Phase IV ID of the Phase IV routing message that
    id          caused the event to be generated.

 o  da adjacency change

    Support: All

    Generated when the state of a DA adjacency on the circuit changes
    from up to down or from down to up. For these purposes, the
    states up and up/dormant are considered up and any other state is
    considered down. This attribute is supported only if the circuit
    type is x25 da.

    Arguments:

    adjacency   Name of the adjacency to which the event refers.
    name

    new         Current state of the adjacency.
    adjacency
    state       down         Adjacency state is now down.
                up           Adjacency state is now up.

    reason      Reason why the adjacency state changed to down.

 o  exceeded maximum svc adjacencies

    Support: End,L2 (DA
    circuits only)

    Generated when there is no free adjacency on which to establish
    an SVC for a new destination.

 o  id reachability change

    Support: All

    Generated when an ID is added to or removed from the endnodeID
    status of an adjacency on this circuit. For end nodes this event
    is generated for point-to-point links only.

    Arguments:

    adjacency   Name of the adjacency to which the event refers.
    name

    adjacent    Node IDs of the adjacent node.
    node

    reason      Reason why the adjacency state changed to down.

 o  initialization failure

    Support: All

    Generated when an attempt to initialize with an adjacent node
    fails, either because of version skew or area mismatch.

    Arguments:

    adjacent    Node IDs of adjacent nodes.
    node

    reason      Reason why the event was generated. See possible
                reasons described under the adjacency state change
                event.

 o  ip adjacency state change

    Support: IP

    Generated when the status attribute state of a routing circuit
    ip adjacency entity belonging to this circuit changes from up (or
    up/dormant) to some other value, or the reverse.

    Arguments:

    neighbor    IP address of the neighbor.
    IP address

    new IP      New state of the IP adjacency.
    adjacency
    state       up           Either up or up/dormant
                down         Any other state

    reason      Reason for the state change.

 o  ip fragmentation failure

    Support: IP

    Generated when an IP packet that requires fragmentation in
    order to be transmitted has an IP header that requests "do not
    fragment."

    Arguments:

    destination Destination IP address of the IP packet.
    IP address

    source IP   Source IP address of the IP packet.
    address

 o  irrecoverable svc failure

    Support: All

    Generated when recall count becomes equal to maximum call
    attempts. This attribute is supported only if the circuit type
    is x25 static outgoing.

    reason      Reason why the adjacency state changed to down.

 o  LAN L1 designated router change

    Support: L1,L2

    Generated when the local node either elects itself or resigns as
    the LAN level 1 designated router on this circuit.

    Argument:

    designated  New state of the designated router.
    router
    change      elected      Router state is now elected.

                resigned     Router state is now resigned.

 o  LAN L2 designated router change

    Support: L2

    Generated when the local node either elects itself or resigns as
    the LAN level 2 designated router on this circuit.

    Argument:

    designated  New state of the designated router.
    router
    change      elected      Router state is now elected.

                resigned     Router state is now resigned.

 o  LAN phaseiv designated router change

    Support: L1,L2

    Generated when the local node either elects itself or resigns as
    the LAN Phase IV designated router on this circuit.

    Argument:

    designated  New state of the designated router.
    router
    change      elected      Router state is now elected.

                resigned     Router state is now resigned.

 o  redirect discard

    Support: End

    Generated when a Redirect packet is discarded because of
    insufficient cache space.

 o  rejected adjacency

    Support: All

    Generated when an attempt to create a new adjacency fails because
    of insufficient resources.

    Arguments:

    adjacent    Node IDs of adjacent nodes.
    node

    reason      Reason for the failure. See possible reasons
                described under the adjacency state change event.

 o  rejected ip adjacency

    Support: IP

    Generated when an attempt to automatically create an IP adjacency
    to an IP router fails because of lack of resources.

    Arguments:

    neighbor    IP address of the neighbor.
    IP address

    reason      Reason why the attempt failed. See the description of
                the Reason argument of the IP Adjacency State Change
                event.

 o  rip error received

    Support: L2,IP

    Generated when any kind of error is detected in a received RIP
    packet. This event is generated only if the routing entity's
    characteristic routing protocols supported includes the value
    RIP.

    Arguments:

    neighbor    IP address of the neighbor.
    IP address

    RIP reason  Type of error that was detected in the RIP packet.
                format
                error
                version
                skew

    RIP         RIP version number of the RIP packet. This argument
    version     is present only if the RIP Reason is Version Skew.

 o  verification reject

    Generated when a verification attempt fails.

2  –  egp_group

2.1  –  egp_neighbor

 o  error message received

    Support: L2,IP

    Generated when an EGP error response message is received.

    Arguments:

    neighbor    IP address of this neighbor.
    ip address
    reason      Reason why the error message occurred.
                autonomous system number rejected
                bad EGP data field format
                bad EGP header format
                excessive polling rate
                no response
                reachability information unavailable

 o  error message sent

    Support: L2,IP

    Generated when an EGP error response message is sent.

    Arguments:

    neighbor    IP address of this neighbor.
    ip address

    reason      Reason why the error message occurred. See the
                description of the Reason argument of the Error
                Message Received event.

 o  received message discard

    Support: L2,IP

    Generated when a received EGP message is discarded for some
    reason.

    Arguments:

    neighbor    IP address of this neighbor.
    ip address

    reason      Reason why the error message occurred. See the
                description of the Reason argument of the Error
                Message Received event.

 o  send message discard

    Support: L2,IP

    Generated when an EGP message for transmission is discarded for
    some reason.

    Arguments:

    neighbor    IP address of this neighbor.
    ip address

    reason      Reason why the error message occurred. See the
                description of the Reason argument of the Error
                Message Received event.

 o  start

    Support: L2,IP

    Generated when a start command completes successfully.

    Argument:

    neighbor    IP address of this neighbor.
    ip address

 o  state change

    Support: L2, EGP

    Generated when the status attribute egp state changes to some
    other state.

    Argument:

    neighbor    IP address of this neighbor.
    ip address

 o  stop

    Support: L2,IP

    Generated when a stop command completes successfully.

    Argument:

    neighbor    IP address of this neighbor.
    ip address
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