NCLHELP.HLB  —  show  routing  circuit  reachable_address
    show  [node node-id] routing -
           circuit circuit-name -
            reachable address simple-name  attribute [,attribute...]
                                           all [attributes]
                                           all characteristics
                                           all identifiers
                                           all status

1  –  Characteristics

 o  address prefix

    Support: L2,End
    Default: None                Value: Address Prefix

    Address prefix to which this reachable address refers. You cannot
    modify this characteristic. This characteristic is set
    by means of an argument to the create command.

    The value of this characteristic derives from an argument to the
    create command. This characteristic is supported only if
    the owning circuit has type set to x25 da.

 o  block size

    Support: End, type outbound
    Default: 0                   Value: 0-65536

    The data link block size to be used for this prefix.
    For an end system, the data link block size to be used for this
    prefix.  If the block size is set to the default, the manual block
    size of the circuit will be used instead.  This attribute is
    supported only if the type characteristic is set to outbound.

 o  cost

    Support: L2
    Default: 20                  Value: 1-63

    Cost of reaching this address prefix over this circuit.

 o  data format

    Support: L2
    Default: Phase V              Value: Phase IV (1) or Phase V (0)

    The PDU data format to be used when forwarding data (or error
    report) NPDUs using this reachable address.

    This attribute is supported only if the type characteristic
    is set to outbound. You can modify this characteristic only when
    the entity is disabled.

 o  dte addresses

    Support: End,L2
    Default: No DTE addresses={ }        Value: Set of DTE addresses

    A set of DTE addresses to which a call may be directed in order
    to reach an address that matches the address prefix of this
    reachable address.

    This characteristic is supported if the node is a level 2 router,
    where the owning circuit's characteristic type is one of the X.25
    circuit types, and the reachable address's characteristic type
    is outbound. It is also supported by end nodes operating over an
    x25 da circuit. You can modify this characteristic only when the
    entity is disabled.

 o  ISDN address

    Support: L1,L2
    Default: { }                 Value: Set of ISDN addresses

    A full set of E.164 ISDN network addresses that a call may be
    directed in order to reach a network number that matches the
    address prefix of the parent reachable address entity.
    Associated with each ISDN network address, but not visible to
    Network Management, is a variable last failure of type binary
    absolute time. This attribute is supported only if access type
    is ISDN DA.

 o  LAN address

    Support: L2,End
    Default: 00-00-00-00-00-00    Value: ID

    A single LAN address to which an NPDU can be directed in order
    to reach an address that matches the address prefix of the parent
    reachable address entity. This attribute is supported only if the
    type characteristic is set to outbound on broadcast circuits only.
    A valid address is required here.

    You can modify this characteristic only when the entity is
    disabled.

 o  mapping

    Support: End,L2
    Default: X.121               Value: Manual or X.121

    Type of mapping used to determine the SNPA address to which a
    call should be placed for this address prefix. You can modify
    this characteristic only when the entity is disabled. If the
    circuit is a broadcast circuit, this attribute must have the
    value manual.

    manual The mapping uses the set of addresses in the characteristic
           dte addresses or the address in the characteristic LAN
           address.

    X.121  The mapping uses the X.121 address extraction algorithm.

    This characteristic is supported only if either of the following
    conditions is satisfied:

    o  The node is a level 2 router or an end node, and the owning
       circuit's characteristic type is one of the X.25 circuit
       types; or

    o  The node is a level 2 router, the owning circuit's
       characteristic type is csma-cd, and the reachable address's
       characteristic type is outbound.

 o  metric type

    Support: L2
    Default: Internal            Value: Internal, external

    The metric type of the cost metric for the circuits. If internal,
    the I/E bit for the metric in the Prefix Neighbors option of
    L2 LSPs is set to 0, otherwise (external) is set to 1.

 o  modem addresses

    Support: L1,L2
    Default: { }                 Value: Set of modem addresses

    A set of full dial sequence that contains the address (PSTN or
    ISDN) to which a call may be directed in order to reach a
    network number that matches the address prefix of the parent
    reachable address) entity. Associated with each modem address,
    but not visible to Network Management, is a variable last
    failure of type binary absolute time. This is valid only if
    mapping is manual and the parent circuit entity's access time
    is Modem DA.

 o  modem address prefix

    Support: L1,L2
    Default: L1,L2             Value: Address string

    The address that is to be inserted to the beginning of the address
    extracted from the NSAP address. This is valid only if mapping is
    not manual and the parent circuit entity's access type is Modem
    DA. It is used in conjunction with modem access suffix to form the
    complete dial sequence.

 o  modem address suffix

    Support: L1,L2
    Default: L1,L2             Value: Address string

    The address that is to be inserted to the end of the address
    extracted from the NSAP address. This is valid only if mapping
    is not manual and the parent circuit entity's access type is
    Modem DA. It is used in conjunction with modem access prefix to
    form the complete dial sequencence.

 o  permitted LAN address

    Support: End
    Default: { }               Value: Set of LAN addresses

    The set of LAN addresses corresponding to routers that are
    permitted to be used for forwarding to this prefix. This
    attribute is supported only if the type characteristic is set
    to filter on broadcast circuits only. The default is an empty
    set, and at least one LAN address is required.

 o  type

    Support: L2,End
    Default: Outbound        Value: Inbound, outbound, or filter

    Type of the reachable address. You can modify this characteristic
    only when the entity is disabled.

    inbound        For L2 only, the address prefix corresponds to a
                   Phase IV area that is reachable through this node
                   and circuit by inbound traffic.

    outbound       The address prefix is in an external domain
                   that is reachable over this circuit by outbound
                   traffic.

    filter         The address prefix defines a set of addresses that
                   should be reached via the set of routers listed
                   in the permitted LAN address characteristic.

2  –  Identifier

 o  name

    Simple name assigned to the reachable address when it is created.

3  –  Status

 o  state

    State of the routing circuit reachable address entity.

    off   The reachable address is disabled.

    on    The reachable address is enabled.
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