A routing circuit entity represents a data link to another node.
1 – character
ALTERNATIVE SUBNET ADDRESSES
Support: L1,L2,IP
Default: No Address Value: Set of subnet_address
A set of alternative IP addresses and subnet masks for this interface.
You can modify this characteristic only when the entity is disabled.
ARP HOLDING TIME
Support: IP
Default: 600 Value: 30-65535
Number of seconds to hold on to a routing circuit ip address
translation entity. This characteristic is supported only if the
circuit's type characteristic is CSMA-CD.
ARP RESPONSE WAITING TIME
Support: IP
Default: 3 Value: 1-10
Number of seconds to wait for an ARP response when an ARP request has
been sent. This characteristic is supported only if the circuit's
type characteristic is CSMA-CD.
AUTHENTICATION TYPE
Support: L1,L2,IP
Default: None Value: None or Simple
Type of authentication to be used for LAN L1 Hellos, LAN L2 Hellos,
or PtPt Hellos on this circuit.
DATA LINK ENTITY
Support: All
Default: NO Data Link name 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.
DIRECTED BROADCAST
Support: L1,IP
Default: On Value: Off or On
Specifies how an IP packet is to be forwarded on a broadcast link.
OFF - Discard the packet silently.
ON - Broadcast the packet using data level link broa that either of
the following conditions is true:
o The packet's subnet address matches the value of the subnet
address characteristic.
o The packet's subnet address matches one of the values of the
alternative subnet addresses characteristic.
This characteristic is supported only if the characteristic type is
set to CSMA-CD.
DNA NEIGHBOR
Support: L1,L2
Default: True Value: Boolean
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.
ENABLE PHASEIV ADDRESS
Support: All
Default: True Value: Boolean
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 phaseiv
address characteristic is not 0.0. If phaseiv 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.
EXPLICIT RECEIVE VERIFICATION
Support: All
Default: True Value: Boolean
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.
HELLO TIMER
Support: L1,L2
Default: 10 Value: 1-32767
Interval, in seconds, between IS Hello messages.
IDLE TIMER
Support: All
Default: 10 Value: 1-32767
Number of seconds of idle time before a call is cleared. This attribute
is supported only if the characteristic type is x25 da.
INACTIVE AREA ADDRESS
Support: All
Default: No area Address Value: Set of area 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.
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.
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.
L1 COST
Support: L1,L2
Default: 20 Value: 1-63
Cost of this circuit for level 1 traffic.
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.
L2 cost
Support: L2
Default: 20 Value: 1-63
Cost of this circuit for level 2 traffic.
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.
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.
MANUAL DATA LINK SDU SIZE FOR IP
Support: IP
Default: see below Value: 128-65535
Preferred maximum DSDU size, in octets, for the transmission of IP
packets. The DSDU size includes the size of the packet containing the
IP header. On point-to-point HDLC links, the DSDU size also includes
the 1-octet link encapsulation that is, the maximum IP packet size is
the value of this attribute minus 1. The default value depends on the
circuit type, as follows:
CSMA-CD - 1500
DDCMP - 1500
HDLC - 1500
X.25 all types - 576
You can modify this characteristic only when the entity is disabled.
MANUAL l2ONLY MODE
Support: L2
Default: False Value: Boolean
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.
MANUAL ROUTERS
Support: End
Default: No router IDs Value: Set of LAN Address
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.
MAXIMUM ARP RETRIES
Support: IP
Default: 3 Value: 1-10
Maximum number of times that an ARP request can be sent for the same
IP address. This characteristic is supported only if the circuit's
characteristic type is set to CSMA-CD.
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.
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.
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.
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.
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.
RESERVED ADJACENCY
Support: End
Default: False Value: Boolean
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.
RIP GENERATED DEFAULT ROUTE
Support: L1,L2,IP
Default: False Value Boolean
If true, this specifies that the default route is announced in RIP
messages sent on this circuit, with the metric value specified in the
RIP generated default route metric characteristic. If false, the
default route is not generated.
RIP GENERATED DEFAULT ROUTE METRIC
Support: L1,L2,IP
Default: False Value: Boolean
The metric to be used when announcing a generated default route through
RIP on this circuit.
RIP NEIGHBORS
Support: L2,IP
Default: No address Value: set of IP-addresses
IP addresses of neighboring systems with which RIP will be exchanged
on this circuit. If the circuit is a point-to-point circuit, this set
must contain a single IP address if the rip state characteristic is
to be set to send and receive. Also, you must disable the entity
before altering this characteristic. If the rip send type
characteristic is set to broadcast, only RIP messages from addresses
specified in this set will be received; other messages will be silently
discarded. This characteristic is supported only if the routing
protocols supported characteristic of the routing entity includes
the RIP routing protocol.
RIP POISONED REVERSE
Support: L2,IP
Default: True Value: Boolean
Specifies whether poisoned reverse routes are to be sent in RIP
messages on this circuit. If false, poisoned reverse routes are not
sent. This characteristic is supported only if the routing protocols
supported characteristic of the routing entity includes the RIP
routing protocol.
RIP RECEIVE DEFAULT ROUTE
Support: L2,IP
Default: True Value: Boolean
Specifies whether the default route is accepted from RIP messages on
this circuit. If false, the default route from RIP messages on this
circuit is discarded. This characteristic is supported only if the
routing protocols supported characteristic of the routing entity
includes the RIP routing protocol.
RIP SEND TYPE
Support: L2,IP
Default: Broadcast Value: Broadcast or point-to-point
Specifies how RIP messages are sent on this circuit.
BROADCAST - RIP messages are sent by means of data link broadcast.
POINT-TO-POINT - RIP messages are sent directly to each IP address
specified in the rip neighbors characteristic.
This characteristic is supported only if the routing protocols
supported characteristic of the routing entity includes the RIP
routing protocol and if the circuit's type characteristic is csma-cd.
RIP STATE
Support: L2,IP
Default: Off Value: see below
Specifies how RIP messages are treated on this circuit.
OFF - RIP messages cannot be sent or received on this
circuit.
RECEIVE - RIP messages can be received but not sent on this
circuit.
SEND AND RECEIVE - RIP messages can be sent and received on this
circuit.
This characteristic is supported only if the routing protocols
supported characteristic of the routing entity includes the RIP
routing protocol.
SUBNET ADDRESS
Support: IP
Default: 0.0.0.0 Value: Subnet Address
IP address and subnet mask of this interface. You can modify this
characteristic only when the entity is disabled.
TEMPLATE
Support: All
Default: No template name Value: Template-id
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.
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.
TYPE
Support: All
Default: All
Type of circuit. You cannot modify this characteristic. This
characteristic is set by means of an argument to the create command.
CSMA-CD - The circuit is a broadcast circuit.
DDCMP - The circuit is a DDCMP circuit.
HDLC - The circuit is an HDLC circuit.
X25 DA - The circuit is a dynamically allocated X.25
circuit.
X25 PERMANENT - X.25 permanent virtual circuit.
X25 STATIC INCOMING - Static incoming X.25 circuit.
X25 STATIC OUTGOING - Static outgoing X.25 circuit.
X.25 FILTERS
Default: seee below Value: set of simple names
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.
2 – counters
AUTHENTICATION FAILURES
Support: L1,L2,IP
Number of times a PDU has been received on this circuit with an
Authentication Information field that is incompatible with the PDU type.
CALLS FAILED
Support: All
Number of unsuccessful call attempts on this circuit. This attribute is
supported only if the characteristic type is x25 da.
CALLS PLACED
Support: All
Number of call attempts successful and unsuccessful on this circuit.
This attribute is supported only if the characteristic type is
x25 da.
CHANGES IN ADJACENCY STATE
Support: All
Number of times the status attribute state of an adjacency belonging
to this circuit changes from Up to Down or Initializing, or the
reverse.
CHANGES IN IP ADJACENCY STATE
Support: IP
Number of times the status attribute state of an IP adjacency
belonging to this circuit changes from Up to some other state, or the
reverse.
CHANGES IN RIP NEIGHBOR STATE
Support: L2,IP
Number of times the RIP state of IP adjacencies belonging to this
circuit have changed. This attribute is supported only if the routing
entity's characteristic routing protocols supported includes the
routing protocol RIP.
CIRCUIT CHANGES
Support: All
Number of times that the status attribute state has changed from on
to off, or vice versa.
CONGESTION DISCARDS
Support: L1,L2
Number of data-and error-report NPDUs that have been discarded, before
or after fragmentation, because of congestion. Any other discarding
will already have been done by the forwarding process. This number
includes all PDUs recognized by the receive process as data PDUs
DECnet-Plus data- and error-report PDUs and Phase IV data packets,
even though they may subsequently be discarded for some reason.
CONTROL PDUS RECEIVED
Support: All
Number of control PDUs that have been received on this circuit. This
number includes all Network layer PDUs, with the exception of
DECnet-Plus data and error report PDUs and Phase IV data PDUs.
CONTROL PDUS SENT
Support: All
Number of control PDUs that have been sent on this circuit.
CORRUPTED HELLO PDUS RECEIVED
Support: All
Number of times an ES-IS end system to intermediate system or IS-IS
intermediate system to intermediate system Hello PDU has been
received on this circuit that either cannot be parsed or contains an
incorrect checksum.
CORRUPTED LSPS RECEIVED
Support: L1,L2
Number of times a corrupted link state packet has been received on this
circuit.
DA ADJACENCY CHANGES
Support: All
Number of DA adjacency change events that have been generated.
DATA PDUS FORWARDED
Support: L1,L2
Number of data- and error-report NPDUs that have been forwarded onto
this circuit either from another circuit or from a local port. This
number includes all PDUs recognized by the receive process as data
PDUs DECnet-Plus data- and error-report PDUs and Phase IV data packets,
even though they may subsequently be discarded for some reason.
DATA PDUS FRAGMENTED
Support: All
Number of data NPDUs that have been fragmented on this circuit.
DATA PDUS RECEIVED
Support: All
Number of data- and error-report NPDUs that have been received on this
circuit. This number includes all PDUs recognized by the receive
process as data PDUs DECnet-Plus data and error report PDUs and Phase
IV data packets, even though they may subsequently be discarded for
some reason.
DATA PDUS TRANSMITTED
Support: All
Number of data- and error-report NPDUs, after fragmentation, that have
been delivered to the port for transmission on this circuit. This
number includes all PDUs recognized by the receive process as data PDUs
DECnet-Plus data- and error-report PDUs and Phase IV data packets,
even though they may subsequently be discarded for some reason.
EXCEEDED MAXIMUM SVC ADJACENCIES
Support: End,L2
Number of exceeded maximum svc adjacency events that have been
generated. This counter is supported only if the circuit's type is
set to x25 da; only for nodes that are end nodes; and if the system
supports dual routing both DECnet and IP routing.
ID REACHABILITY CHANGES
Support: All
Number of ID reachability change events that have been generated.
INITIALIZATION FAILURES
Support: All
Number of times that an attempt to initialize an adjacent node over
this circuit has failed, either because of version skew or area
mismatch.
IP FRAGMENTATION FAILURE DISCARDS
Support: IP
Number of IP packets discarded because fragmentation was required to
transmit them, but the IP header requested "do not fragment."
IP FRAGMENTS CREATED
Support: IP
Number of IP fragments created for transmission on this circuit.
IP PACKETS FORWARDED
Support: IP
Number of IP packets forwarded on this circuit before fragmentation.
These IP packets may be from another circuit or from a local port.
Note that this value includes those IP packets counted in the ip
send discards counter.
IP PACKETS FRAGMENTED
Support: IP
Number of IP packets that have been fragmented on this circuit.
IP PACKETS RECEIVED
Support: IP
Number of IP packets received on this circuit. This value includes all
types of IP packet control, data, etc., and those that may
subsequently be discarded for any reason.
IP RECEIVED DISCARDS
Support: IP
Number of IP packets that have been received and then discarded because
of congestion.
IP SEND DISCARDS
Support: IP
Number of IP packets for transmission that have been discarded because
of congestion.
IRRECOVERABLE SVC FAILURES
Support: All
Number of times that the number of re-call attempts on this circuit
has become equal to the value of the characteristic maximum call
attempts. This attribute is supported only if the characteristic
type is set to x25 static outgoing.
LAN L1 DESIGNATED ROUTER CHANGES
Support: L1,L2
Number of times the local node has either elected itself or resigned
as the LAN level 1 designated router on this circuit. This attribute
is supported only if the circuit's characteristic type is set to
csma-cd.
LAN L2 DESIGNATED ROUTER CHANGES
Support: L2
Number of times the local node has either elected itself or resigned
as the LAN level 2 designated router on this circuit.
LAN PHASEIV DESIGNATED ROUTER CHANGES
Support: L1,L2
Number of times the local node has either elected itself or resigned as
the LAN Phase IV designated router on this circuit.
REDIRECT DISCARDS
Support: End
Number of Redirect PDUs that have been discarded because of
insufficient cache memory.
REJECTED ADJACENCIES
Support: All
Number of times an attempt to create a new adjacency using this
circuit has failed because of insufficient resources.
REJECTED IP ADJACENCIES
Support: L2,IP
Number of times an attempt to automatically create a new IP adjacency
to an IP router has failed because of lack of resources.
RIP ERRORS RECEIVED
Support: L2,IP
Number of RIP messages received with any kind of received error on this
circuit. This attribute is supported only if the routing entity's
characteristic routing protocols supported includes the routing
protocol RIP.
SEGMENTATION FAILURE DISCARDS
Support: L1,L2
Number of data NPDUs that have been discarded because segmentation was
required to send them on this circuit but was not permitted in the
NPDU header.
VERIFICATION REJECT EVENTS
Number of verification reject events that have been generated. This
attribute is supported only if the characteristic type is set to
DDCMP, HDLC, X25 static incoming, X25 static outgoing, or X25
permanent.
3 – status
DATA LINK PORT
Support: All
Name of the data link port used for this circuit. Not supported on
DA circuits.
DATA LINK SDU SIZE
Support: All
Maximum size, in octets, of a Data Link SDU for this circuit. This
includes the Network layer header, but excludes the Data Link layer
header. The value of this status is the lesser of the value of the
characteristic manual data link sdu size and any limit imposed by
the Data Link layer.
LAN L1 ID
Support: L1,L2
LAN ID allocated by the LAN level 1 designated router. This attribute
is supported only if the circuit's characteristic type is csma-cd.
LAN L2 ID
Support: L2
LAN ID allocated by the LAN level 2 designated router. This attribute
is supported only if the circuit's characteristic type is CSMA-CD.
L1 DESIGNATED ROUTER
Support: L1,L2
ID of the DECnet-Plus level 1 designated router on this circuit. This
attribute is supported only if the circuit's characteristic type is
CSMA-CD. If this node does not participate in the router election
process, the value returned is 00-00-00-00-00-00.
L2 DESIGNATED ROUTER
Support: L2
ID of the DECnet-Plus level 2 designated router on this circuit. This
attribute is supported only if the circuit's characteristic type is
CSMA-CD. If this node does not participate in the router election
process, the value returned is 00-00-00-00-00-00.
PHASEIV DESIGNATED ROUTER
Support: L1,L2
ID of the Phase IV designated router on this circuit. This attribute
is supported only if the circuit's characteristic type is CSMA-CD.
If this node does not participate in the router election process, the
value returned is 00-00-00-00-00-00.
POINT-TO-POINT ID
Support: L1,L2
ID allocated to the circuit during its initialization. This attribute
is supported only if the circuit's characteristic type is HDLC,
DDCMP, or X25 static.
STATE
State of the routing circuit entity.
OFF - The circuit is disabled.
ON - The circuit is enabled.