DECnet-Plus
Network Control Language Reference

Arguments:

adjacency name	The name of the adjacency to which the event refers.
adjacent node	Node IDs of the adjacent node.
new adjacency state	Current state of the adjacency.
	down	Adjacency state is now down.
	up	Adjacency state is now up.
reason	Reason why the adjacency state changed to down.
	address out of range	The adjacency address is invalid.
	area mismatch	The adjacent node's area address is incorrect.
	call rejected	An X.25 call to the adjacent node failed.
	checksum error	A PDU's checksum was invalid.
	circuit disabled	The circuit has been disabled by network management.
	configuration fault	The adjacency has been configured incorrectly.
	datalink failure	Exceeded maximum call attempts; configuration fault.
	exceeded maximum call attempts	The value of the characteristic maximum call attempts has been exceeded.
	holding timer expired	No Hello traffic has been received during the period of the Hello timer.
	maximum broadcast end nodes exceeded	There are more adjacent nodes than can be supported on a LAN.
	maximum broadcast routers exceeded	There are more adjacent nodes than can be supported on a LAN.
	neighbor node change	The address(es) in the hello has/have changed.
	one way connectivity	The connectivity between two LAN routers appears to permit traffic in one direction only.
	reserve timer expired	This may occur temporarily during a change of designated router. Repeated occurrences indicate a configuration or hardware error.
	version skew	The adjacent node is the wrong version.
	wrong node type	The adjacent routing node is of the wrong type.

authentication failure

Arguments:

adjacent node	Node ID of the adjacent node.
authentication level	Authentication level of the PDU: area, circuit, domain.
pdu type	Type of the PDU.
	L1 LSP	L2 PSNP
	L1 CSNP	LAN L1 Hello
	L1 PSNP	LAN L2 Hello
	L2 LSP	PtPt Hello
	L2 CSNP

circuit change

Argument:

disable reason	The reason that the circuit status changed from on to off. If the disable occurred because of a management circuit disable action, the reason is a management action (1). If the disable occurs for any other reason, it is a protocol action (0).
new circuit state	Current state of the circuit.
	off	Circuit state is now off.
	on	Circuit state is now on.

corrupted hello pdus received

corrupted lsp received

Argument:

adjacent node

Node IDs of adjacent nodes.

corrupted phaseiv routing packet received

Argument:

phaseiv id

Phase IV ID of the Phase IV routing message that caused the event to be generated.

da adjacency change

Arguments:

adjacency name	Name of the adjacency to which the event refers.
new adjacency state	Current state of the adjacency.
	down	Adjacency state is now down.
	up	Adjacency state is now up.
reason	Reason why the adjacency state changed to down.

exceeded maximum svc adjacencies

id reachability change

Arguments:

adjacency name	Name of the adjacency to which the event refers.
adjacent node	Node IDs of the adjacent node.
reason	Reason why the adjacency state changed to down.

initialization failure

Arguments:

adjacent node	Node IDs of adjacent nodes.
reason	Reason why the event was generated. See possible reasons described under the adjacency state change event.

ip adjacency state change

Arguments:

neighbor IP address	IP address of the neighbor.
new IP adjacency state	New state of the IP adjacency.
	up	Either up or up/dormant
	down	Any other state
reason	Reason for the state change.

ip fragmentation failure

Arguments:

destination IP address	Destination IP address of the IP packet.
source IP address	Source IP address of the IP packet.

irrecoverable svc failure

LAN L1 designated router change

Argument:

designated router change	New state of the designated router.
	elected	Router state is now elected.
	resigned	Router state is now resigned.

LAN L2 designated router change

Argument:

designated router change	New state of the designated router.
	elected	Router state is now elected.
	resigned	Router state is now resigned.

LAN phaseiv designated router change

Argument:

designated router change	New state of the designated router.
	elected	Router state is now elected.
	resigned	Router state is now resigned.

redirect discard

rejected adjacency

Arguments:

adjacent node	Node IDs of adjacent nodes.
reason	Reason for the failure. See possible reasons described under the adjacency state change event.

rejected ip adjacency

Arguments:

neighbor IP address	IP address of the neighbor.
reason	Reason why the attempt failed. See the description of the Reason argument of the IP Adjacency State Change event.

rip error received

Arguments:

neighbor IP address	IP address of the neighbor.
RIP reason	Type of error that was detected in the RIP packet.
	format error
	version skew
RIP version	RIP version number of the RIP packet. This argument is present only if the RIP reason is version skew.

verification reject

For create:

invalid circuit type

The specified circuit type is invalid.

Argument:

reason	Reason why the circuit type is invalid.
1	A dynamically allocated X.25 circuit type is not permitted for a level 1 router.

maximum circuits exceeded

An attempt has been made to create more than the maximum number of circuits allowed.

For enable:

enable mac address failed

The attempt to enable the MAC address failed on a broadcast circuit with a nonzero Phase IV address.

no such data link

Data link specified for this circuit does not exist.

open port failed

A port cannot be opened on the specified data link.

open rip port failed

The UDP port for RIP (port 520) could not be created.

routing not enabled

The Routing module is not in the on state.

subnet address not unique

One of the subnet addresses for this circuit is the same as the subnet address for another circuit.

21.4 routing circuit adjacency

The create and delete commands are allowed only if circuit is csma-cd and type is L1router or L2router. In addition, the delete command is allowed on end systems only for x25 da circuit adjacencies.
create [node node-id] routing circuit circuit-name adjacency adjacency-name {data format string | endnode ids set | LAN address lan-address }
delete [node node-id] routing circuit circuit-name adjacency adjacency-name
show [node node-id] routing circuit circuit-name adjacency adjacency-name [all [attributes] | all identifiers | all status ]

21.4.1 Arguments

data format string

Format of the reachable address. This argument is optional.

endnode ids set

Set of source system IDs. This argument is mandatory.

LAN address lan-address

Data link address from which the adjacency receives end system hellos. This argument is mandatory.

name

Simple name assigned to the adjacency when it is created.

data link port

Support: All

Name of the data link port used for this X.25 data adjacency. This attribute is supported only if the owning routing circuit entity's characteristic type is set to x25 da.

dte address

Support: All

DTE address of the neighboring node on an X.25 circuit. This status is supported only if the owning circuit entity's characteristic type is x25 da.

endnode ids

Support: All

System IDs of neighboring end nodes. This attribute is supported only if the node is an end node and the owning circuit entity's characteristic type is not x25 da.

endnode nets

Support: All

NETs computed from the system IDs in the endnode ids status and the set of area addresses in the owning routing entity's manual area addresses set. This attribute is supported only if the node is an end node and the owning circuit entity's characteristic type is not x25 da.

holding timer

Support: L1,L2

Holding time for this adjacency, updated from the router-to-router Hello messages. This attribute is supported only if both the node and the adjacency are routers.

ip addresses

Support: IP

IP addresses of the neighbor node. If these are not known, the set is empty.

lan address

Data link address of the neighboring node on a broadcast circuit. This status is supported only if the owning circuit entity's characteristic type is csma-cd.

LAN priority

Support: L1,L2

Priority of the neighbor of this adjacency for becoming the LAN level 1 designated router (if the adjacency is a DECnet-Plus level 1 router) or the LAN level 2 designated router (if the adjacency is a DECnet-Plus level 2 router).

This status is supported only if the owning circuit entity's characteristic type is csma-cd; and the adjacency is a router rather than an end node.

level

Support: L1,L2

The level of the adjacency. This attribute is supported only if both the node and the adjacency are routers.

Level 1	The adjacency is used for level 1 routing.
Level 2	The adjacency is used for level 2 routing.
Level 1 & 2	The adjacency is used for level 1 and level 2 routing.
Level 0 (undefined)	The usage is undefined.

neighbor areas

Support: L1,L2

Area addresses of the neighboring node. This attribute is supported only if both the node and the adjacency are routers and the owning circuit entity's characteristic type is not x25 da.

neighbor node id

Support: L1,L2

Node ID of the neighboring node.

neighbor node type

Support: All

Type of the neighboring node. This status is supported only if the owning circuit entity's characteristic type is not x25 da.

DECnet Phase V endnode	The node is a DECnet-Plus end node.
DECnet Phase V level 1 router	The node is a DECnet Phase V level 1 router.
DECnet Phase V level 2 router	The node is a DECnet Phase V level 2 router.
DECnet Phase V router	The node is a DECnet Phase V router.
non-dna router	The node is not a DNA router.
phaseiv endnode	The node is a Phase IV end node.
phaseiv level 1 router	The node is a Phase IV level 1 router.
phaseiv level 2 router	The node is a Phase IV level 2 router.
phaseiv router	The node is a Phase IV router.
unknown	The node type is unknown.

neighbor protocols supported

Support: IP

Network protocols supported by the neighboring node (either IP or ISO-8473).

router nets

Support: End

Network Entity Title(s) (NETs) of a neighboring router. This status is supported only if the adjacency is a level 1 or level 2 router, and the owning circuit entity's characteristic type is not x25 da.

state

Support: All

State of the routing circuit adjacency entity. May be one of the following:

failed
initializing
up
up/dormant

type

Type of adjacency.

autoconfigured	Created by autoconfiguration.
manual	Created manually by a create command.

This attribute indicates whether the adjacency has been manually created, or whether the adjacency was created by means of Hello PDUs. It will always have the value manual when it has been created by the create command; otherwise, it will have the value autoconfigured.

For create:

invalid lan address

The specified LAN address is invalid.

non broadcast circuit

Manual adjacencies can be treated only on broadcast circuits.

reserved identifier

You have attempted to create a manual adjacency with an identifier that is reserved for automatic adjacencies.

For delete:

deletion not permitted

An attempt has been made to delete an automatic adjacency, or an adjacency on a circuit that is not a dynamically assigned X.25 circuit.

21.5 routing circuit ip address translation

ip address

IP address of the neighbor.

LAN address

Support: IP

LAN address that corresponds to the IP address of this neighbor.

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