📄 rfc1289.txt
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ACCESS read-only
STATUS mandatory
DECnet Phase IV MIB Working Group [Page 13]
RFC 1289 DECnet Phase IV MIB December 1991
DESCRIPTION
"This read-only parameter represents the version number
of the node End Communication S/W. The format is
version number, ECO, and user ECO, e.g., 4.1.0"
::= { end 4 }
phivEndRetransmitFactor OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum number of times the
source End Communication at the executor node will
restart the retransmission timer when it expires. If
the number is exceeded, Session Control disconnects the
logical link for the user."
::= { end 5 }
phivEndDelayFact OBJECT-TYPE
SYNTAX INTEGER (1..255)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This is the number by which to multiply one sixteenth
of the estimated round trip delay to a node to set the
retransmission timer to that node."
::= { end 6 }
phivEndDelayWeight OBJECT-TYPE
SYNTAX INTEGER (1..255)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This number represents the weight to apply to a
current round trip delay estimate to a remote node
when updating the estimated round trip delay to a node.
On some systems the number must be 1 less than a power
of 2 for computational efficiency."
::= { end 7 }
phivEndInactivityTimer OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum duration of inactivity
(no data in either direction) on a logical link before
the node checks to see if the logical link still works.
DECnet Phase IV MIB Working Group [Page 14]
RFC 1289 DECnet Phase IV MIB December 1991
If no activity occurs within the minimum number of
seconds, End Communication generates artificial
traffic to test the link (End Communication
specification)."
::= { end 8 }
phivEndCountZeroCount OBJECT-TYPE
SYNTAX INTEGER {
other (1),
reset (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"When this value is set to 2, all of the counters in
the End System Counter Table are set to zero."
::= { end 9 }
phivEndMaxLinksActive OBJECT-TYPE
SYNTAX PhivCounter (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the high water mark for the
number of links that were active at any one time."
::= { end 10 }
-- Routing Layer Group
-- The implementation of the Routing Layer Group is mandatory for
-- all systems that implement level 1 routing layer
-- communications.
phivRouteBroadcastRouteTimer OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value determines the maximum time in seconds
allowed between Routing updates on Ethernet
circuits. When this timer expired before a routing
update occurs, a routing update is forced. With a
standard calculation, Routing also uses this timer
to enforce a minimum delay between routing updates."
::= { routing 1 }
phivRouteBuffSize OBJECT-TYPE
SYNTAX INTEGER (1..65535)
DECnet Phase IV MIB Working Group [Page 15]
RFC 1289 DECnet Phase IV MIB December 1991
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This parameter value determines the maximum size of
a Routing message. It therefore determines the maximum
size message that can be forwarded. This size includes
protocol overhead down to and including the End
Communication layer, plus a constant value of 6. (This
value of 6 is included to provide compatibility with
the parameter definition in Phase III, which included
the Routing overhead.) It does not include Routing or
Data link overhead (except for the constant value of
6). There is one buffer size for all circuits.
NOTE: The BUFFER SIZE defines the maximum size messages
that the Routing layer can forward. The SEGMENT BUFFER
SIZE (defined below) defines the maximum size messages
that the End Communication layer can transmit or
receive. The SEGMENT BUFFER SIZE is always less than
or equal to the BUFFER SIZE. Normally the two
parameters will be equal. They may be different to
allow the network manager to alter buffer sizes
on all nodes without interruption of service. They both
include an extra 6 bytes for compatibility with Phase
III."
::= { routing 2 }
phivRouteRoutingVers OBJECT-TYPE
SYNTAX DisplayString ( SIZE (0..255) )
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This read-only parameter identifies the executor node's
Routing version number. The format is version number,
ECO, and user ECO, e.g., 4.1.0"
::= { routing 3 }
phivRouteMaxAddr OBJECT-TYPE
SYNTAX INTEGER (1..1023)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the largest node number and,
therefore, number of nodes that can be known about
by the executor node's home area."
::= { routing 4 }
DECnet Phase IV MIB Working Group [Page 16]
RFC 1289 DECnet Phase IV MIB December 1991
phivRouteMaxBdcastNonRouters OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum total number of
nonrouters the executor node can have on its Ethernet
circuits."
::= { routing 5 }
phivRouteMaxBdcastRouters OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum total number of
routers the executor node can have on its Ethernet
circuits."
::= { routing 6 }
phivRouteMaxBuffs OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum number of transmit
buffers that Routing may use for all circuits."
::= { routing 7 }
phivRouteMaxCircuits OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum number of Routing
circuits that the executor node can know about."
::= { routing 8 }
phivRouteMaxCost OBJECT-TYPE
SYNTAX INTEGER (1..1022)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum total path cost
allowed from the executor to any node within an area.
The path cost is the sum of the circuit costs along
a path between two nodes. This parameter defines the
point where the executor node's Routing routing
DECnet Phase IV MIB Working Group [Page 17]
RFC 1289 DECnet Phase IV MIB December 1991
decision algorithm declares another node unreachable
because the cost of the least costly path to the
other node is excessive. For correct operation, this
parameter must not be less than the maximum path cost
of the network."
::= { routing 9 }
phivRouteMaxHops OBJECT-TYPE
SYNTAX INTEGER (1..30)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum number of routing hops
allowable from the executor to any other reachable node
within an area. (A hop is the logical distance over a
circuit between two adjacent nodes.) This parameter
defines the point where the executor node's Routing
routing decision algorithm declares another node
unreachable because the length of the shortest path
between the two nodes is too long. For correct
operation, this parameter must not be less than the
network diameter. (The network diameter is the
reachability distance between the two nodes of the
network having the greatest reachability distance,
where reachability distance is the length the shortest
path between a given pair of nodes.)"
::= { routing 10 }
phivRouteMaxVisits OBJECT-TYPE
SYNTAX INTEGER (1..63)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value represents the maximum number of nodes a
message coming into the executor node can have visited.
If the message is not for this node and the MAXIMUM
VISITS number is exceeded, the message is discarded.
The MAXIMUM VISITS parameter defines the point where
the packet lifetime control algorithm discards
a packet that has traversed too many nodes. For correct
operation, this parameter must not be less than the
maximum path length of the network. (The maximum path
length is the routing distance between the two nodes of
the network having the greatest routing distance, where
routing distance is the length of the least costly
path between a given pair of nodes.)"
::= { routing 11 }
DECnet Phase IV MIB Working Group [Page 18]
RFC 1289 DECnet Phase IV MIB December 1991
phivRouteRoutingTimer OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value determines the maximum time in seconds
allowed between Routing updates on non-Ethernet
circuits. When this timer expires before a routing
update occurs, a routing update is forced."
::= { routing 12 }
phivRouteSegBuffSize OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This parameter value determines the maximum size of an
end-to-end segment. The size is a decimal integer in
the range 1-65535. This size is in bytes. This size
includes protocol overhead down to and including the
End Communication layer, plus a constant value of 6.
(This value of 6 is included to provide compatibility
with the BUFFER SIZE parameter definition.) It does not
include Routing or Data link overhead (except for the
constant value of 6)."
::= { routing 13 }
phivRouteType OBJECT-TYPE
SYNTAXINTEGER {
routing-III (1),
nonrouting-III (2),
area (3),
routing-IV (4),
nonrouting-IV (5)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This parameter indicates the type of the executor
node. The node-type is one of the following:
routing-III
nonrouting-III
routing-IV
ronrouting-IV
area
A routing node has full routing capability. A
DECnet Phase IV MIB Working Group [Page 19]
RFC 1289 DECnet Phase IV MIB December 1991
nonrouting node contains a subset of the Routing
routing modules. The III and IV indicate the DNA
phase of the node. Nonrouting nodes can deliver
and receive packets to and from any node, but cannot
route packets from other nodes through to other nodes.
An area node routes between areas. Refer to the Routing
specification for details.
For adjacent nodes, this is a read-only parameter that
indicates the type of the reachable adjacent node.
NOTE: The ROUTING-III and NONROUTING-III values are
incremented by one compared to the standard DECnet
values in order to maintain compliance with RFC 1155)"
::= { routing 14 }
phivRouteCountAgedPktLoss OBJECT-TYPE
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