NET$MGMT_HELP.HLB  —  llc2
    The LLC2 module implements one of the protocols in the Data Link layer
    described by the Digital Network Architecture.

    The LLC2 entity is the top-level entity in the LLC2 module hierarchy of
    entities. The LLC2 module controls the operation of the LLC Type 2 data
    link protocol for local area networks LANs.

    The hierarchical relationship of the entities that constitute the LLC2
    module:

                               LLC2
                           Port    Sap
                                    Link

1  –  character

    VERSION

       Version number of the DNA LLC2 architecture to which this implementation
       conforms. You cannot modify this characteristic. To display this
       attribute, specify all or version.

2  –  port

    An LLC2 port entity represents an access point to the services offered to
    clients by the LLC2 module. The simple-name refers to the port managed by
    this command.

3  –  status

    CLIENT

        Name of the client that opened the port.

    LINK NAME

        Name of the LLC2 sap link entity with which this port is associated.

    STATE

        State of the LLC2 port entity.

        OPEN           - The port is assigned to a client and is enabled.

        OPEN DISABLED  - The port is assigned to a client but is disabled.

4  –  sap

   Each LLC2 Port entity has an LLC2 SAP (service access point  entity
   associated with it. An LLC2 Sap entity allows links to be multiplexed over
   its associated port.

4.1  –  character

    LAN STATION
       Default: No entity name                    Value: Local-entity-name

       Name of the LAN station entity used by the SAP. You must specify a value
       for this attribute before you enable the SAP.

    LOCAL LSAP ADDRESS
       Default:   7E                              Value:   Hex-number

       Address of the local link service access point (LSAP) to be used. The
       lowest significant bit of this value must be clear; that is, the address
       must be an individual address.

4.2  –  counter

    TIMES SAP STATE CHANGED

        Number of times the status attribute state has changed from on to off,
        or from off to on.

4.3  –  status

    LAN PORT

        Name of the LAN port that is opened and enabled when this SAP is
        successfully enabled. If the SAP is not enabled, this status has a null
        value.

    MAXIMUM PDU SIZE

        Largest frame size, in octets, that can be used to send or receive data
        on this SAP.

    STATE

        State of the llc2 sap entity.

        OFF  - The SAP is disabled.

        ON   - The SAP is enabled.

5  –  sap_lnk

    An llc2 sap link  entity represents one of the links that operates over a
    particular SAP (service access point ).

5.1  –  character

    ACKNOWLEDGE TIMER
       Default:   1000                            Value:   1--60000

       Time, in milliseconds, that the link waits for an acknowledgment before
       initiating recovery action. The granularity of this timer is 10
       milliseconds. Values that are not multiples of 10 are rounded up.

    BUSY TIMER
       Default:   10000                           Value:   1--60000

       Time, in milliseconds, that the link waits for indication of the
       clearance of a busy condition at the remote station. The granularity of
       this timer is 10 milliseconds. Values that are not multiples of 10 are
       rounded up.

    HOLDBACK TIMER
       Default:   500                              Value:   0--60000

       Delay, in milliseconds, before an acknowledgment must be sent. The
       granularity of this timer is 10 milliseconds. Values that are not
       multiples of 10 are rounded up.

    LOCAL RECEIVE WINDOW SIZE
       Default:   127                               Value:   1--127

       Window size used by the link for receiving frames.

    MAXIMUM DATA SIZE
       Default:   1028                              Value:   1--65531

       Largest frame size, in octets, that the link can use to send or receive
       data. This value does not include the size of the frame header.

    POLL TIMER
       Default:   1000                              Value:   1--60000

       Time, in milliseconds, that the link waits for a response with the F-bit
       set. The granularity of this timer is 10 milliseconds. Values that are
       not multiples of 10 are rounded up.

    REJECT TIMER
       Default:   3000                              Value:   1--60000

       Time, in milliseconds, that the link waits for a reply to a REJ ( reject
       frame. The granularity of this timer is 10 milliseconds. Values that are
       not multiples of 10 are rounded up.

    REMOTE LSAP ADDRESS
       Default:   7E                                 Value: hex-number

       Address of the destination LSAP (local service access point  to be used
       by the link. The lowest significant bit must be clear; that is, the
       address must be an individual address.

    REMOTE MAC ADDRESS
       Default:   00-00-00-00-00-00                  Value: lan-address

       Destination MAC address to be used by the link. The lowest significant
       bit of the first octet must be clear; that is, the address must be an
       individual address.

    RETRY MAXIMUM
       Default:   10                                 Value:   1--255
       Maximum number of times that the link retransmits a frame before
       assuming a fatal error and taking more drastic recovery action.

5.2  –  counter

    DATA OCTETS RECEIVED

        Number of data octets received in I frames and UI frames from the
        remote end of the link. This value does not include data octets in
        retransmissions.

    DATA OCTETS SENT

        Number of data octets transmitted in I frames and UI frames to the
        remote end of the link. This value does not include data octets in
        retransmissions.

    DATA PDUS RECEIVED

        Number of I frames and UI frames received from the remote end of the
        link. This value does not include retransmissions.

    DATA PDUS SENT

        Number of I frames and UI frames transmitted to the remote end of the
        link. This value does not include retransmissions.

    FRMRS RECEIVED

        Number of FRMR (frame reject) frames received.

    FRMRS SENT

        Number of FRMR (frame reject) frames generated as a result of invalid
        incoming frames.

    POLLS RECEIVED

        Number of command frames received with the P bit set.

    REJS RECEIVED

        Number of REJ (reject) frames received.

    REJS SENT

        Number of REJ (reject) frames transmitted.

    RNRS RECEIVED

        Number of RNR (receive not ready) frames received.

    RNRS SENT

        Number of RNR (receive not ready) frames transmitted.

    TIMES ACKNOWLEDGE TIMER EXPIRED

        Number of times the local acknowledge timer has expired.

    TIMES BUSY TIMER EXPIRED

        Number of times the local busy timer has expired.

    TIMES LINK HALTED

        Number of times the link's status attribute protocol state was set to
        halted.

    TIMES LINK INITIALIZING

        Number of times the link's status attribute protocol state was set to
        initializing.

    TIMES LINK INOPERATIVE

        Number of times the link's status attribute  protocol state was set to
        inoperative.

    TIMES LINK RESETTING

        Number of times the link's status attribute protocol state was set to
        resetting.

    TIMES LINK RUNNING

        Number of times the link's status attribute protocol state was set to
        running.  When the link enters the running  state, the protocol has been
        successfully initalized or reset.

    TIMES LINK SETUP FAILED

        Number of times the LLC2 protocol fails to initialize correctly after
        the maximum number of retries.

    TIMES LINK STATE CHANGED

        Number of times the link's status attribute STATE changed from on to
        off, or from off to on.

    TIMES POLL TIMER EXPIRED

        Number of times the local poll timer has expired.

    TIMES REJECT TIMER EXPIRED

        Number of times the local reject timer has expired.

    XIDS RECEIVED

        Number of XID frames received.

    XIDS SENT

        Number of XID frames transmitted.

5.3  –  status

    PROTOCOL STATE

        State of the LLC2 protocol with respect to the remote station.

        ERROR         - The protocol is in a recognized error state.

        HALTED        - The protocol has halted.

        INITIALIZING  - The protocol is being initialized.

        INOPERATIVE   - The protocol cannot be started because the LAN station
                        cannot provide a connection to a remote system.

        RESETIING     - The protocol is being reset.

        RUNNING       - The protocol is running normally.

    REMOTE LLC CLASS

        Class of the remote LLC.

        1        - Class 1 LLC. Only type 1 operation is supported.

        2        - Class 2 LLC. Both type 1 and type 2 operations are supported.

        UNKNOWN  - The class has not yet been established. The class is not
                   established until XID frames have been exchanged between the
                   local and remote LLC implementations.

    REMOTE RECEIVE WINDOW SIZE

        Window size used by the remote station for receiving frames. The local
        station uses this value as its window for transmitting frames.

    STATE

        State of the llc2 link entity.

        OFF  - The link is disabled.

        ON   - The link is enabled.
Close Help