/sys$common/syshlp/NCLHELP.HLB  —  set  routing
    set  [node node-id] routing ...

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

    area authentication type [none or simple]
    area receive passwords [set of hex-string]
    area send password [hex-string]
    autonomous system number [integer]
    dna address format [boolean]
    default eshello timer [integer]
    domain authentication type [none or simple]
    domain receive passwords [set of hex-string]
    domain send password [hex-string]
    generate checksums [boolean]
    lifetime [integer]
    manual area addresses [set of area addresses]
    manual L1 algorithm [string]
    manual L2 algorithm [string]
    manual network entity titles [set of NETs]
    maximum buffers [integer]
    maximum path splits [integer]
    phaseiv address [ph4-address]
    phaseiv prefix [address-prefix]
    phaseiv area maximum cost [integer]
    phaseiv area maximum hops [integer]
    phaseiv broadcast routing timer [integer]
    phaseiv buffer size [integer]
    phaseiv maximum address [integer]
    phaseiv maximum area [integer]
    phaseiv maximum cost [integer]
    phaseiv maximum hops [integer]
    phaseiv maximum visits [integer]
    probe rate [integer]
    protocols [IP or ISO 8473]
    redirect holding time [integer]
    routing mode [integrated or segregated]
    segment buffer size [integer]
    send source quench [boolean]
    source quench interval [boolean]
    summary addresses [set of summary-address]
    time to live [integer]

    Refer to the specific attributes for more information.

    Select circuit to view the modifiable attributes of a routing
    circuit, a routing circuit ip reachable address, or a routing
    circuit reachable address.

    Select egp_group to view the modifiable attributes of a
    routing egp group.

    Select permitted_neighbor for information on modifying the
    verifier attribute of a routing permitted neighbor.

1  –  area_authentication_type

    Support: L1,IP
    Default: None          Value: None or simple

    Type of authentication to be used for level 1 LSPs, PSNPs, and
    CSNPs.

2  –  area_receive_passwords

    Support: L1,IP
    Default: No passwords  Value: Set of hex-string

    Set of passwords that are valid in level 1 LSPs, PSNPs, and CSNPs
    when simple authentication is in use. You cannot use the show
    command to display the value of this attribute.

3  –  area_send_password

    Support: L1,IP
    Default: No password   Value: Hex-string

    Password to be sent in level 1 LSPs, PSNPs, and CSNPs when simple
    authentication is in use. You cannot use the show command to
    display the value of this attribute.

4  –  autonomous_system_number

    Support: IP
    Default: 0             Value: 0-65535

    Autonomous system number of the local system. This characteristic
    is supported only if the value of the routing protocols supported
    characteristic includes EGP. You can modify this characteristic
    only when the status attribute routing state is off.

5  –  dna_address_format

    Support: End
    Default: True          Value: True or false

    If true, specifies that NSAP addresses are DNA structured, and
    that NSAP address autoconfiguring is possible. If false, this
    specifies that NSAP addresses for this node are constructed
    from the characteristic manual network entity titles and the
    selectors supplied by the transport protocol module (NSP and/or
    OSI transport).

    The DNA address format attribute controls only the interpretation
    of address structuring and no longer controls autoconfiguration.
    To control autoconfiguration, you need to use the manual network
    entity titles attribute by manually adding or removing NETs.

    set [node node-id] routing dna address format boolean

    Example:

    set routing dna address format true

6  –  default_eshello_timer

    Default: 600           Value: 1-65535

    Value to be used for current suggested hello timer in the absence
    of any suggested values from the IS.

    set [node node-id] routing default eshello timer integer

    Example:

    set routing default eshello timer 600

7  –  domain_authentication_type

    Support: L2,IP
    Default: None          Value: None or simple

    Type of authentication to be used for level 2 LSPs, PSNPs, and
    CSNPs.

8  –  domain_receive_passwords

    Support: L2,IP
    Default: No passwords  Value: Set of hex-string

    Set of passwords that are valid in level 2 LSPs, PSNPs, and CSNPs
    when simple authentication is in use. You cannot use the show
    command to display the value of this attribute.

9  –  domain_send_password

    Support: L2,IP
    Default: No password   Value: Hex-string

    Password to be sent in level 2 LSPs, PSNPs, and CSNPs when simple
    authentication is in use. You cannot use the show command to
    display the value of this attribute.

10  –  generate_checksums

    Support: All
    Default: False         Value: True or false

    If true, specifies that checksums are generated for data, error
    report, and ES-IS PDUs initiated by this node. If false, these
    checksums are not generated. It is strongly recommended that,
    for performance reasons, you use the default value (indicating no
    checksum generation).

11  –  lifetime

    Support: All
    Default: 63            Value: 2-255

    Value to be placed in the "lifetime" field of originating data
    packets. This value should be greater than the maximum number of
    hops in any path in the network, plus the maximum packet lifetime
    in half-seconds.

12  –  manual_area_addresses

    Support: L1,L2
    Default: No area       Value: Set of area addresses
    addresses

    Area addresses to be used for this node. An area address cannot
    be a Phase IV address or the address DefaultArea.

    If the characteristic manual L1 algorithm has the value routing
    vector, this set must be empty, and the characteristic phase iv
    address must not be 0.0. If the characteristic phase iv address
    is 0.0, there must be at least one area address.

13  –  manual L1 algorithm

    Support: L1
    Default: Routing       Value: See description
    vector

    Type of routing algorithm to be used within the area. You can
    modify this characteristic only when the entity is disabled.

    link state     The DECnet-Plus link-state algorithm is used.
    routing        The Phase IV routing-vector algorithm is used.
    vector

14  –  manual L2 algorithm

    Support: L2
    Default: Routing       Value: See description
    vector

    Type of routing algorithm to be used at level 2. You can modify
    this characteristic only when the entity is disabled.

    link state     The DECnet-Plus link-state algorithm is used.
    routing        The Phase IV routing-vector algorithm is used.
    vector

15  –  manual_network_entity_titles

    Support: End
    Default: No NETs       Value: Set of NETs

    Network entity titles (NETs) to be used for this node. If the
    characteristic dna address format is set to false, there must be
    at least one NET.

    set [node node-id] routing manual network entity titles {NET[,NET...]}

    Example:

    set routing manual network entity titles -
          {49::00-04:AA-00-04-00-45-13:00}

16  –  maximum_buffers

    Default: 100           Value: 0-65535

    Specifies the guaranteed number of buffers for forwarding. More
    buffers may be used if they are available.  You can only increase
    the characteristic value.

17  –  maximum_path_splits

    Support: L1,L2
    Default: 2             Value: 1-32

    Maximum number of equal cost paths to split traffic between. You
    can modify this characteristic only when the entity is disabled.

18  –  phaseiv_address

    Support: All
    Default: 0.0           Value: PhaseIV address

    Specifies a Phase IV compatible address for communication with
    other Phase IV nodes. The default address, 0.0, indicates that
    no Phase IV compatible address is provided for the node. You can
    modify this characteristic only when the entity is disabled.

    set [node node-id] routing phaseiv address phiv-address

    Example:

    set routing phaseiv address = 4.863

19  –  phaseiv_area_maximum_cost

    Support: L2
    Default: 1022          Value: 1-1022

    Maximum cost of a path to a reachable Phase IV area. This
    characteristic is only used by the Phase IV routing algorithm
    (that is, the routing-vector algorithm).

20  –  phaseiv_area_maximum_hops

    Support: L2
    Default: 30            Value: 1-30

    Maximum number of hops in a path to a reachable Phase IV
    area. This characteristic is only used by the Phase IV routing
    algorithm (that is, the routing-vector algorithm).

21  –  phaseiv_broadcast_routing_timer

    Support: L1,L2
    Default: 10            Value: 1-65535

    Maximum interval, in seconds, between broadcast routing messages
    on broadcast circuits. This characteristic is only used by
    the Phase IV routing algorithm (that is, the routing-vector
    algorithm).

22  –  phaseiv_buffer_size

    Support: All
    Default: 576           Value: 1-65535

    Size, in octets, of buffers used for routing to adjacent Phase IV
    nodes. This value is actually six octets greater than the maximum
    buffer size, and does not include the headers for the Routing and
    Data Link layers.

23  –  phaseiv_maximum_address

    Support: L1,L2
    Default: 1023          Value: 1-1023

    Maximum node number within the Phase IV area. This characteristic
    is only used by the Phase IV routing algorithm (that is, the
    routing-vector algorithm).

24  –  phaseiv_maximum_area

    Support: L2
    Default: 63            Value: 1-63

    Maximum Phase IV area number. This characteristic is only used
    by the Phase IV routing algorithm (that is, the routing-vector
    algorithm).

25  –  phaseiv_maximum_cost

    Support: L1,L2
    Default: 1022          Value: 1-1022

    Maximum cost of a path to a reachable node within the Phase IV
    area. This characteristic is only used by the Phase IV routing
    algorithm (that is, the routing-vector algorithm).

26  –  phaseiv_maximum_hops

    Support: L1,L2
    Default: 30            Value: 1-30

    Maximum number of hops in a path to a reachable node within the
    Phase IV area. This characteristic is only used by the Phase IV
    routing algorithm (that is, the routing-vector algorithm).

27  –  phaseiv_maximum_visits

    Support: All
    Default: 63            Value: 1-63

    Maximum number of visits that a packet can make to this node
    before Routing assumes that the packet is looping. This
    characteristic is only used by the Phase IV routing algorithm
    (that is, the routing-vector algorithm).

28  –  phaseiv_prefix

    Support: All
    Default: Hex 49        Value: Address prefix

    Prefix for Phase IV addresses. If the characteristic phase iv
    address is not 0.0, a DECnet area address is formed by adding
    the area portion of the Phase IV address to this prefix.
    You can modify this characteristic only when the entity is
    disabled.

    set [node node-id] routing phaseiv prefix address-prefix

    Example:

    set routing phaseiv prefix = 49::

29  –  probe_rate

    Support: End
    Default: 20            Value for Tru64 UNIX: 10-1000
    Default: 20            Value for OpenVMS: 1-65535

    Number of packets after which a probe is sent. This
    characteristic is used only on multilink end systems, on
    circuits without cache entries for the destination.

30  –  protocols

    Support: IP             Value: IP or ISO8473

    The protocol stacks that are enabled on this system. These
    can be either or both of the above values. The value of this
    characteristic derives from an argument to the create command.
    You cannot modify this characteristic.

31  –  redirect_holding_time

    Support: L1,L2
    Default: 600           Value: 1-65535

    Holding time, in seconds, to be specified in Redirect PDUs
    generated by this node.

32  –  rip_receive_metric_class

    Support: L2,IP
    Default: External          Value: External or Internal

    The class to be associated with routes received through RIP.
    This value may be overridden by a routing receive route entity.
    This characteristic is supported only if the routing protocols
    supported characteristic includes the RIP routing protocol.

33  –  rip_send_local_metric

    Support: L2,IP
    Default: 1                        Value: 0-16

    The metric value used by RIP when announcing routes derived from
    local information. This value is used unless it is overridden by
    a routing send route entity. This characteristic is supported
    only if the routing protocols supported characteristic includes
    the RIP routing protocol.

34  –  rip_send_metric_classes

    Support: L2,IP
    Default: Internal                 Value: Set of external, internal

    Routes received through routing protocols other than RIP with metric
    classes in this set are candidates for announcement in RIP messages
    subject to the route propagation policy in force. Routes with metric
    classes not in this set will not be announced.  Each value in this
    set may be overridden separately by a more specific propagation
    policy specified by a routing send route or routing send route route
    source entity. This characteristic is supported only if the routing
    protocols supported characteristic includes the RIP routing protocol.

35  –  rip_send_replacement_metric

    Support: L2,IP
    Default: 1                        Value: 0-16

    The metric value used by RIP when announcing routes derived through
    other routing protocols. This value is used unless it is overridden
    by a routing send route entity. This characteristic is supported
    only if the routing protocols supported characteristic includes the
    RIP routing protocol.

36  –  route_propagation

    Support: L2,IP
    Default: No Route Propagation         Value: Set of protocol pairs

    The default route propagation to be performed. The set may include
    the following protocol pairs:

       EGP to IS-IS      IS-IS to RIP
       EGP to RIP        RIP to EGP
       IS-IS to EGP

    If a particular value is not present in the set, routes are not
    propagated between those two protocols in that direction. This
    characteristic is supported only if the routing protocols
    supported characteristic includes either of the EGP or RIP
    routing protocols.

37  –  routing_mode

    Support: End
    Default: Integrated (OpenVMS)        Value: Segregated or
             Segregated (Tru64 UNIX)          Integrated

    Determines the behavior of the forwarding algorithm. When the
    routing mode is set to Segregated, data being transmitted to
    Phase IV destination addresses is sent in Phase IV format packets,
    to the adjacent Phase IV router, if available. In Integrated mode,
    data is sent to Phase V (OSI) router adjacencies in CLNP packets,
    if possible.

    This characteristic can only be set when Routing is disabled.
    For example, to switch to segregated mode from the default:

       NCL> disable routing
       NCL> set routing routing mode = segregated
       NCL> enable routing
       NCL> enable routing circuit *

38  –  routing_protocols_supported

    Support: L2,IP

    The set of routing protocols supported by this implementation. You
    cannot modify this characteristic.

      EGP
      IS-IS
      RIP

39  –  segment_buffer_size

    Support: All
    Default: 570           Value: 0-65535

    Maximum segment size, in octets, to be used by the Transport
    layer. A value of zero means that the segment size is unlimited.

40  –  send_source_quench

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

    Specifies whether an ICMP source quench packet is sent when an IP
    packet is discarded because of congestion. If false, ICMP source
    quench packets are never sent.

41  –  source_quench_interval

    Support: L1,L2,IP
    Default: 100           Value: 1-65535

    Minimum time, in milliseconds, between transmission of successive
    ICMP source quench packets.

42  –  summary_addresses

    Support: L2,IP
    Default: No addresses  Value: Set of summary addresses

    Summary address information to be included in level 2 link state
    packets sent by this node.

43  –  time_to_live

    Support: IP
    Default: 35            Value: 1-255

    Specifies the value to be placed in the time to live field of
    originating IP packets. This value should be greater than the
    maximum number of hops in any path on the network.

44  –  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.

44.1  –  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

44.2  –  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.

44.3  –  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

44.4  –  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.

44.5  –  hello_timer

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

    Interval, in seconds, between IS Hello messages.

44.6  –  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.

44.7  –  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}

44.8  –  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.

44.9  –  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.

44.10  –  L1 cost

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

    Cost of this circuit for level 1 traffic.

44.11  –  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.

44.12  –  L2 cost

    Support: L2
    Default: 20            Value: 1-63

    Cost of this circuit for level 2 traffic.

44.13  –  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.

44.14  –  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

44.15  –  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.

44.16  –  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}

44.17  –  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.

44.18  –  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.

44.19  –  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.

44.20  –  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.

44.21  –  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.

44.22  –  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.

44.23  –  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.

44.24  –  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.

44.25  –  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.

44.26  –  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.

44.27  –  ip_reachable_address

    Support: L2,IP

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

44.28  –  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]

44.28.1  –  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

44.28.2  –  cost

    Support: L2
    Default: 20            	Value: 1-63

    Cost of reaching this address prefix over this circuit.

44.28.3  –  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.

44.28.4  –  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 }

44.28.5  –  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.

44.28.6  –  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

44.28.7  –  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

44.28.8  –  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.

44.28.9  –  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.

44.28.10  –  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.

44.28.11  –  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.

44.28.12  –  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}

44.28.13  –  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

45  –  egp_group

    set  [node node-id] routing egp group group-name ...

    Modifies the attributes of a routing egp group entity, which
    defines a set of systems in the same autonomous system with which
    this system may exchange EGP messages.  The modifiable attributes
    and their data types [in brackets] are:

    autonomous system number [integer]
    external routes [set of send,receive]
    maximum active neighbors [integer]
    receive metric class [internal or external]
    send local metric [integer]
    send metric classes [set of external,internal]
    send replacement metric [integer]

45.1  –  autonomous_system_number

    Support: L2,IP
    Default: 0             Value: 0-65535

    The autonomous system number common to members of this group. You
    can modify this characteristic only when the entity is disabled.
    This attribute is supported only if the node is a level 2 router,
    and if the system supports dual routing (both DECnet and IP
    routing).

45.2  –  external_routes

    Support: L2,IP
    Default: Receive       Value: Set of send,receive

    If the set includes receive, external gateway routes are accepted
    from neighbors in the group; if the set does not include receive,
    external gateway routes are discarded. If the set includes send,
    external gateway routes will be sent to neighbors in this group;
    if the set does not include send, external gateway routes are not
    sent. You can modify this characteristic only when the entity is
    disabled.

45.3  –  maximum_active_neighbors

    Support: L2,IP
    Default: 1             Value: 0-255

    The maximum number of neighbor systems in the group that this
    system will attempt to acquire and maintain in the Up state at
    any given time. You can modify this characteristic only when the
    entity is disabled.

45.4  –  receive_metric_class

    Support: L2,IP
    Default: External      Value: Internal or external

    The class to be associated with routes received from EGP
    neighbors in this group (unless overridden by a routing receive
    route entity). You can modify this characteristic only when the
    entity is disabled.

45.5  –  send_local_metric

    Support: L2,IP
    Default: 1             Value: 0-255

    The metric value to be used when announcing routes derived from
    local information (unless overridden by a routing send route
    entity). You can modify this characteristic only when the entity
    is disabled.

45.6  –  send_metric_classes

    Support: L2,IP
    Default: Internal      Value: Set of external,internal

    Routes received through routing protocols other than EGP with
    metric classes in this set are candidates for announcement
    in EGP messages sent to neighbors in this group, subject to
    route propagation policy. Routes with metric classes not
    specified in this set will not be announced. You can modify this
    characteristic only when the entity is disabled.

45.7  –  send_replacement_metric

    Support: L2,IP
    Default: 1             Value: 0-255

    Specifies the metric value to be used when announcing routes
    derived from non-EGP routing protocols (unless overridden by a
    routing send route entity). You can modify this characteristic
    only when the entity is disabled.

46  –  permitted_neighbor

    set  [node node-id] routing permitted neighbor neighbor-name -
         verifier hex-string

46.1  –  verifier

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

    Verifier to be checked from this neighbor.  You may change this
    characteristic at any time; however, the change will not take
    effect until the circuit is next initialized.  You cannot
    display this characteristic.

    If the verifier is not set, then a connection to the neighboring
    node whose ID matches the ID in this entry is allowed.  If the
    verifier is set, the connection is allowed only if the verifier
    sent by the remote node matches the one in this entry.

    Examples:

    create routing permitted neighbor nashua_decnet-osi -
           id 08-00-2b-12-34-56
    set routing permitted neighbor nashua_decnet-osi -
           verifier %x1234

    create routing permitted neighbor nashua_phase_iv -
           id aa-00-04-00-12-34
    set routing permitted neighbor nashua_phase_iv -
           verifier %x1234
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