NCLHELP.HLB  —  show  fddi  station  link
    show  [node node-id] fddi -
         station station-name -
                 link link-index  attribute [,attribute...]
                                  all [attributes]
                                  all counters
                                  all identifiers
                                  all status

    The station-name must be a simple name which uniquely
    identifies a particular station instance.  The link-index
    can be either an integer or a wildcard.

    OpenVMS Examples:

    show fddi station fddi-0 link * all

    show fddi station fddi-0 link 0 all

    show fddi station fddi-0 link 0 -
       requested trt, restricted token timeout

    Tru64 UNIX Examples:

    show fddi station fddi-1 link * all

    show fddi station fddi-1 link 1 all

    show fddi station fddi-1 link 1 -
       requested trt, restricted token timeout

1  –  Characteristics

 o  link address

    MAC address assigned during manufacture of the communication
    hardware that is associated with the station (read-only).

 o  requested trt

    Default: 8.0           Value: 1-65535

    Requested token rotation timer.

 o  restricted token timeout

    Default: 1000          Value: 1-65535

    Length limit of a restricted token dialog.

 o  ring purger enable

    Default: True          Value: True or false

    Controls whether this station is eligible to be a ring purger and
    should participate in the ring purger election.

 o  valid transmission time

    Default: 3.4           Value: 1-65535

    Valid transmission time.

2  –  Counters

 o  block check errors

    Number of times a received frame containing an integral number of
    octets failed the FCS check.

 o  creation time

    Time at which the station was created.

 o  directed beacons received

    Number of times the link detected the directed beacon process.

 o  duplicate address test failures

    Number of times the duplicate address test failed (detected that
    the link address was a duplicate).

 o  duplicate tokens detected

    Number of times the MAC address test failed (detected that the
    link address was a duplicate).

 o  error count

    Total number of frames that were in error with the E indicator
    reset, indicating that the error occurred between the upstream
    MAC and this one.

 o  fci strip errors

    Number of times a frame content independent strip operation
    (bridge strip) was terminated by receipt of a token.

 o  frame count

    Total number of frames seen by this link, other than tokens.

 o  frame status errors

    Number of times a received frame had the E indicator in error
    (missing or set) and the FCS was correct.

 o  lost count

    Counter lost count.

 o  multicast octets received

    Number of multicast data octets that were successfully received
    in multicast frames of type LLC, implementer, reserved, or SMT.
    The count does not include the MAC envelope.

 o  multicast octets sent

    Number of multicast data octets that were successfully sent in
    multicast frames of type LLC, implementer, reserved, or SMT. The
    count does not include the MAC envelope.

 o  multicast pdus received

    Number of multicast frames that were successfully received of
    type LLC, implementer, reserved, or SMT.

 o  multicast pdus sent

    Number of multicast frames that were successfully sent of type
    LLC, implementer, reserved, or SMT.

 o  octets received

    Number of octets successfully received in frames of type LLC,
    implementer, reserved, or SMT. The count does not include the MAC
    envelope.

 o  octets sent

    Number of octets successfully sent in frames of type LLC,
    implementer, reserved, or SMT. The count does not include the
    MAC envelope.

 o  pdu length errors

    Number of times a received frame had an invalid length, either
    too long or short for the type, or had an alignment error (odd
    number of symbols).

 o  pdus received

    Number of frames successfully received in frames of type LLC,
    implementer, reserved, or SMT.

 o  pdus sent

    Number of frames successfully sent in frames of type LLC,
    implementer, reserved, or SMT.

 o  receive data overruns

    Number of times the hardware lost one or more consecutive, only
    partially complete incoming frames because it was unable to keep
    up with the medium rate. An example is overrun of a bit or octet
    FIFO queue because of inability to copy data from adapter to host
    promptly. In conjunction with total frames received, provides a
    measure of hardware resource and bandwidth failures.

 o  ring beacons initiated

    Number of times the ring beacon process was initiated by this
    link.

 o  ring initializations initiated

    Number of times a ring reinitialization was initiated by this
    link.

 o  ring initializations received

    Number of times a ring reinitialization was initiated by some
    other link.

 o  ring purge errors

    Number of times the ring purger received a token while still in
    the ring purge state.

 o  token count

    Number of times a token has been seen by this link.

 o  transmit underruns

    Number of times a transmit underrun occurred. This indicates the
    transmit FIFO became empty during frame transmission.

 o  traces initiated

    Number of times the pc trace process was initiated by this link.

 o  transmit failures

    Number of times a transmit error, other than underrun, occurred.
    This does not include errors in transmitting MAC type frames.

 o  unavailable link buffers

    Number of times a complete, fully received frame was discarded
    because no link buffer was available. In conjunction with total
    frames received, provides a measure of station-buffer-related
    receive problems.

 o  unavailable user buffers

    Number of times no user buffer was available for an incoming
    frame that passed all filtering for the port. These are the
    buffers supplied by users on receive requests. In conjunction
    with total frames received, provides a measure of user-buffer-
    related receive problems.

 o  unrecognized individual destination pdus

    Number of times a received LLC frame with an individual
    destination MAC address was discarded because there was no
    port with the Ethernet protocol type, SNAP protocol identifier,
    or LLC SAP address enabled. Only frames containing individual
    destination MAC addresses are counted.

 o  unrecognized multicast destination pdus

    Number of times a received LLC frame with a multicast destination
    MAC address was discarded because there was no port with the
    Ethernet protocol type, SNAP protocol identifier, or LLC SAP
    address enabled. Only frames containing multicast destination MAC
    addresses are counted.

3  –  Identifier

 o  index

    An integer that uniquely identifies this link to the parent
    station entity.

4  –  Status

 o  downstream neighbor

    MAC address of the downstream neighbor, if known.

 o  duplicate address flag

    Summary output of the duplicate address test algorithm.

 o  frame strip mode

    Current frame stripping mode of the MAC.

    SA match   Source address match mode of the frame stripping
               algorithm matches the source address of the frame with
               the MAC's MyLongAddress (MLA), and if a match is found,
               the frame is removed from the token ring.

    FCI        The FCIS mode counts the number of frames transmitted
    strip      since the reception of a token, and strips equal number
               of frames.

 o  loopback

    This is true if the link has been set up to receive frames
    transmitted by it. This allows loopback testing either on the
    ring or with one of the PHY port loopback modes.

 o  negotiated trt

    Negotiated token rotation timer.

 o  old downstream neighbor

    Previous value of the downstream neighbor.

 o  old upstream neighbor

    Previous value of the upstream neighbor.

 o  ring error reason

    Reason code for the most recent link error.

    duplicate      Duplicate address algorithm detected a duplicate
    address        address.
    detected

    duplicate      A duplicate token was detected on the ring.
    token
    detected

    no error       No errors have occurred on this ring.

    ring init      Ring initialization was initiated by this link to
    initiated      initialize the ring and create a token.

    ring init      Ring initialization was initiated by some other
    received       link to initialize the ring and create a token.

    ring           Ring beaconing process was initiated by this link.
    beaconing      This process in initiated as a result of serious
    initiated      ring failure, such as loss of signal or jabbering
                   station transmitting in violation of the protocol.
                   This indicates to other links on the LAN that
                   corrective action may be required.

    ring purge     Link received a token while performing a ring
    error          purge operation.

    FCI strip      Frame content independent strip operation was
    error          terminated by the receipt of a token.

    ring op        Ring state has been continually changing from
    oscillation    operational to initializing.

    directed       Link received particular beacon data.
    beacon
    received

    PC trace       PC-trace was initiated by this link.
    initiated

    PC trace       PC-trace was initiated by some other link.
    received

 o  ring latency

    Current ring latency as measured by this link entity.

 o  ring purger state

    State of the ring purger election process.

    candidate      The Link's Ring Purger process is participating in
                   the Ring Purger election algorithm as a candidate
                   to become the Ring Purger.

    nonpurger      The Link's Ring Purger process is in an idle state
                   listening for periodic Purger Hello frames.

    off            The Link's Ring Purger process is disabled.

    purger         The Link's Ring Purger process is performing the
                   function of removing no owner frames and duplicate
                   token from the ring. In this state, the process
                   transmits periodic Purger Hello frames.

 o  state

    State of the link entity.

    broken         Attempt to turn the link on failed the
                   initialization test, or link was on, but failure
                   was detected.

    off-ready      FDDI Data Link communication services are not
                   available.

    off-fault      State entered when a link entity detects
    recovery       conditions that indicate faulty ring.

    on-ring init   Physical layer service is available and the link
                   entity enabled.

    on-ring run    Link detected that the Ring Initialization has
                   been successfully completed and the ring is
                   operational.

 o  uid

    Entity's unique identifier, which is generated when the entity is
    created.

 o  upstream neighbor

    MAC address of the upstream neighbor, if known.

 o  upstream neighbor duplicate address flag

    Default: false               Value: True or false

    Upstream neighbor's reported result of its duplicate address
    test.
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