NCLHELP.HLB  —  set  routing  circuit
    set  [node node-id] routing circuit circuit-name ...

    Modifies attributes of the routing entity which represents
    a data link to another node.  Support for the various attributes
    depends upon the routing type of the node (End, L1, L2, IP).
    The modifiable routing circuit attributes and their data types
    [in brackets] are:

    data link entity [local-entity-name]
    dna neighbor [boolean]
    enable phaseiv address [boolean]
    explicit receive verification [boolean]
    hello timer [integer]
    idle timer [integer]
    inactive area address [set]
    initial minimum timer [integer]
    isis hello timer [integer]
    L1 cost [integer]
    L1 router priority [integer]
    L2 cost [integer]
    L2 router priority [integer]
    manual data link sdu size [integer]
    manual L2only mode [boolean]
    manual routers [set]
    maximum call attempts [integer]
    maximum svc adjacencies [integer]
    originating queue limit [integer]
    recall timer [integer]
    receive verifier [hex-string]
    reserved adjacency [boolean]
    reserve timer [integer]
    template [template-id]
    transmit verifier [hex-string]
    x.25 filters [set]

    Select reachable_address to view the modifiable attributes of a
    routing circuit reachable address subentity.

    Selecte ip_reachable_address to view the modifiable attributes
    of a routing circuit ip reachable address subentity.

1  –  data_link_entity

    Support: All
    Default: No data link  Value: Local-entity-name

    Name of the entity within the data link module to be created when
    a port is opened for that data link type. You can modify this
    characteristic only when the entity is disabled. This attribute
    is supported for all types of circuits, however for X.25 circuits
    set the attribute to x25 access.

    set [node node-id] routing circuit circuit-name -
        data link entity [local entity name]

    Examples:

    set routing circuit csmacd-1 -
         data link entity csma-cd station csmacd-1

    set routing circuit x25_circuit-1 data link entity x25 access

2  –  dna_neighbor

    Support: L1,L2
    Default: True          Value: True or false

    If true, specifies that the neighbor is expected to be DNA
    compliant, and so proprietary mechanisms are possible. If
    false, no router-to-router Hellos or LSPs will be sent over
    this circuit. This characteristic is supported only if the
    characteristic type is not x25 da. You can modify this
    characteristic only when the entity is disabled.

3  –  enable_phaseiv_address

    Support: All
    Default: True          Value: True or false

    Specifies whether the physical LAN address is to be set to the
    Phase IV style LAN address (that is, AA-00-04-00-xx-xx). The
    LAN address is set only if this attribute is true and the value
    of the Phase IV Address characteristic is not 0.0. If Phase IV
    Address is not 0.0 and there are multiple adaptors to the same
    LAN, only one circuit may have this attribute set to true. This
    characteristic is supported only if the characteristic type is
    set to csma-cd.

    set [node node-id] routing circuit circuit-name -
        enable phaseiv address boolean

    Example:

    set routing circuit csmacd-1 enable phaseiv address true

4  –  explicit_receive_verification

    Support: All
    Default: True          Value: True or false

    Type of password verification performed at circuit
    initialization. If true, the received verifier is checked
    against the value of the characteristic receive verifier for
    this circuit, if any. If false, the received verifier is checked
    against the set of verifiers specified in the routing permitted
    neighbor entities. This attribute is supported only if the
    characteristic type is set to ddcmp, hdlc, x25 static incoming,
    x25 static outgoing, and x25 permanent.

5  –  hello_timer

    Support: L1,L2
    Default: 10            Value: 1-32767

    Interval, in seconds, between IS Hello messages.

6  –  idle_timer

    Support: All
    Default: 30            Value: 1-65535

    Number of seconds of idle time before a call is cleared. This
    attribute is supported only if the characteristic type is x25 da.

7  –  inactive_area_address

    Support: All
    Default: No area       Value: Set of area addresses
    address

    Area address associated with the use of the inactive subnet of
    ISO 8473. Maximum area address that may be present is 1. This
    characterisitic is supported only if the characteristic type is
    set to csma-cd.

    set [node node-id] routing circuit circuit-name -
        inactive area address {one_area_address}

    Example:

    set routing circuit csmacd-1 inactive area address {49::FF-00}

8  –  initial_minimum_timer

    Support: All
    Default: 55            Value: 1-65535

    Period, in seconds, for which an X.25 call remains connected
    after being established, irrespective of traffic. This should be
    set small enough that the call is cleared before the start of the
    next charging interval. This attribute is supported only if the
    characteristic type is x25 da.

9  –  isis_hello_timer

    Support: L1,L2
    Default: 3             Value: 1-32767

    Interval, in seconds, between LAN level 1 and level 2 router-to-
    router Hello messages. This value is also used as the interval
    between IS Hello messages when polling the ES configuration.

10  –  L1 cost

    Support: L1,L2
    Default: 20            Value: 1-63

    Cost of this circuit for level 1 traffic.

11  –  L1 router priority

    Support: L1,L2
    Default: 64            Value: 1-127

    Priority for becoming LAN level 1 designated router. This
    attribute is supported only if the circuit's characteristic type
    is csma-cd.

12  –  L2 cost

    Support: L2
    Default: 20            Value: 1-63

    Cost of this circuit for level 2 traffic.

13  –  L2 router priority

    Support: L2
    Default: 64            Value: 1-127

    Priority for becoming LAN level 2 designated router. This
    attribute is supported only if the circuit's characteristic type
    is csma-cd.

14  –  manual_data_link_sdu_size

    Support: All
    Default: 1492          Value: 128-65535

    Preferred maximum data-link block size, in octets. You can modify
    this characteristic only when the entity is disabled. If the
    characteristic type is csma-cd, this characteristic is a read-
    only attribute whose value is fixed at 1492.

    set [node node-id] routing circuit circuit-name -
        manual data link sdu size

    Example:

    set routing circuit fddi-1 manual data link sdu size 4352

15  –  manual L2only mode

    Support: L2
    Default: False         Value: True or false

    If true, specifies that this circuit is to be used only for level
    2 traffic. If false, the circuit may be used for both level 1 and
    level 2 traffic. You can modify this characteristic only when the
    entity is disabled.

16  –  manual_routers

    Support: End
    Default: No router     Value: Set of LAN addresses
    IDs

    Manually entered IDs of routers. If this set is empty, the
    circuit will auto-configure the routers. This characteristic is
    supported only if the circuit's characteristic type is csma-cd.
    For Tru64 UNIX, a maximum of 5 routers can be in the set.

    set  [node node-id] routing circuit circuit-name -
         manual routers {address[,address...]}

    Example:

    set routing circuit csmacd-1 manual routers {aa-00-04-00-12-34}

17  –  maximum_call_attempts

    Support: All
    Default: 10            Value: 0-255

    Maximum number of successive X.25 call failures before the
    circuit is regarded as being halted. A value of zero means that
    there is no limit to the number of retries.

    This attribute is supported only if the characteristic type is
    set to x25 static outgoing. You can modify this characteristic
    only when the entity is disabled. Also, you can only increase the
    characteristic value.

18  –  maximum_svc_adjacencies

    Support: All
    Default: 1             Value: 1-65535

    Number of routing circuit adjacency entities to reserve for
    SVCs on this circuit. This is effectively the maximum number
    of simultaneous calls possible on this circuit. This attribute is
    supported only if the characteristic type is x25 da.

19  –  originating_queue_limit

    Support: L1,L2
    Default: 2             Value: 1-50

    Maximum number of data PDUs originated by this node that can
    be on this circuit's transmit queue. This should be set to the
    minimum number required to keep the data link from idling. You
    can modify this characteristic to a higher value when the entity
    is disabled; you can never modify it to a lower value.

20  –  recall_timer

    Support: All
    Default: 60            Value: 0-65535

    Interval, in seconds, that must elapse between a call failure and
    a recall. This attribute is supported only if the characteristic
    type is set to x25 static outgoing, x25 da, hdlc, or ddcmp.

21  –  receive_verifier

    Support: All
    Default: No verifier   Value: Hex string, length 0-38

    Value against which a neighbor node's received verifier is
    to be checked. If no verifier is specified, no verification
    is performed. This attribute is supported only if the
    characteristic type is either ddcmp, hdlc, x25 static incoming,
    x25 static outgoing, or x25 permanent. You cannot display this
    characteristic.

22  –  reserved_adjacency

    Support: End
    Default: False         Value: True or false

    If true, specifies that one SVC must be reserved for connection
    to a router. If false, no SVC needs to be reserved for
    this purpose. This characteristic is supported only if the
    circuit's characteristic type is x25 da). You can modify this
    characteristic only when the entity is disabled.

23  –  reserve_timer

    Support: All
    Default: 600           Value: 1-65535

    Interval, in seconds, during which the SVC remains reserved for
    the previous DTE address after a call is cleared due to lack of
    traffic. This attribute is supported only if the characteristic
    type is x25 da.

24  –  template

    Support: All
    Default: No template   Value: Template-id
    name

    Name of the template to be used when a port is opened for this
    data-link type. If no template name is specified, no template is
    used. You can modify this characteristic only when the entity is
    disabled.

25  –  transmit_verifier

    Support: All
    Default: No verifier   Value: Hex-string, length 0-38

    Value to be transmitted for verifying the identity of this node.
    If no verifier is specified, no verifier is transmitted. This
    characteristic is supported only if the characteristic type is
    either ddcmp, hdlc, x25 static outgoing, x25 static incoming, or
    x25 permanent. You cannot display this characteristic.

26  –  x.25_filters

    Default: See           Value: Set of simple names
    description

    Specifies the set of X.25 filters to be used when a port is
    opened to the X.25 module. Typically, there will be two sets: one
    to specify the selection on the Call User Data field for DECnet-Plus
    and the other to specify the selection on the subaddress
    for Phase IV. This attribute is valid only if the characteristic
    type is x25 static incoming or x25 da.

27  –  ip_reachable_address

    Support: L2,IP

    set  [node node-id] routing circuit circuit-name
         ip reachable address destination

28  –  reachable_address

    set  [node node-id] routing circuit circuit-name -
         reachable address simple-name ...

    Modifies attributes of a routing circuit reachable address entity
    which contains information about a manually entered address prefix
    accessible over that circuit.  It exists only on L2 routers and
    end nodes.   The modifiable routing circuit reachable address
    attributes and their data types [in brackets] are:

    block size [integer]
    cost [integer]
    data format [PhaseIV or Phasev]
    DTE addresses [set of dte addresses]
    ISDN address [isdn-address]
    LAN address [id]
    metric type [metric-type]
    mapping [string]
    modem addresses [modem-address]
    modem address prefix [modem-address-prefix]
    modem address suffix [modem-address-suffix]
    permitted lan address [lan-address]
    type [string]

28.1  –  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.

    set [node node-id] routing circuit circuit-name -
        reachable address simplename block size integer

    Example:

    set routing circuit csmacd-1 -
         reachable address to-area4 block size 500

28.2  –  cost

    Support: L2
    Default: 20            	Value: 1-63

    Cost of reaching this address prefix over this circuit.

28.3  –  data_format

    Support: L2
    Default: PhaseV             Value: PhaseIV (1) or PhaseV (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.

28.4  –  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.

    set [node node-id] routing circuit circuit-name reachable -
        address simplename dte address {dte-address[dte-address...]}

    Example:

    set routing circuit x25_circuit-1 reachable address ughh_v -
        dte address { 2267643 }

28.5  –  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.

28.6  –  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.

    set [node node-id] routing circuit circuit-name reachable -
        address simplename lan address aa-00-04-00-xx-xx

    Example:

    set routing circuit csmacd-1 reachable address to-area4 -
        lan address aa-00-04-00-12-34

28.7  –  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.

    set [node node-id] routing circuit circuit-name reachable -
        address simplename mapping manual_or_x.121

    Example:

    set routing circuit csmacd-1 reachable address to-area4 -
        mapping manual

28.8  –  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.

28.9  –  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.

28.10  –  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.

28.11  –  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.

28.12  –  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.

    set [node node-id] routing circuit circuit-name -
        reachable address simplename -
        permitted lan address {lan-address[,lan-address...]}

    Example:

    set routing circuit csmacd-1 reachable address to-area4 -
        type filter, -
        permitted lan address {aa-00-04-00-23-45,aa-00-04-00-BC-DE}

28.13  –  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.

    set [node node-id] routing circuit circuit-name -
        reachable address simplename -
        type reachable-addr-type

    Example:

    set routing circuit csmacd-1 -
        reachable address to-area4 type filter
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