OSI/AS Management Programming Manual

ALTER SERVICE Command
Commands and Responses
056785 Tandem Computers Incorporated 5–81
messages are never generated for this counter. The value initially set by the
OSI manager is 0.
ZIP-DISCARD-UNSUP-THLD
is the threshold value that the IP entity compares to the OSI/TS Layer 3
counter ZIP-DISCARD-UNSUP. This counter records the number of times the
IP entity discards a PDU because of an unsupported protocol version or
option. OSI/TS generates a ZOS4-EVT-L3-THLD event message whenever the
counter value is nonzero and dividing the counter value by the threshold
value leaves a remainder of zero. This field is applicable only if ZESIS-
ENABLE is set to ZSPI-VAL-TRUE. The values range from 0 through 65535.
If the threshold is set to 0, L3-THLD event messages are never generated for
this counter. The value initially set by the OSI manager is 0.
ZIP-DISCARD-REASM-THLD
is the threshold value that the IP entity compares to the OSI/TS Layer 3
counter ZIP-DISCARD-REASM. This counter records the number of times the
IP entity discards a PDU because of a failure in reassembly. OSI/TS generates
a ZOS4-EVT-L3-THLD event message whenever the counter value is nonzero
and dividing the counter value by the threshold value leaves a remainder of
zero. This field is applicable only if ZESIS-ENABLE is set to ZSPI-VAL-TRUE.
The values range from 0 through 65535. If the threshold is set to 0, L3-THLD
event messages are never generated for this counter. The value initially set by
the OSI manager is 0.
ZX25DISCONN-DELAY
is the amount of time the TSP process should wait on an idle (unused) X.25
network connection before issuing a network disconnect request. This timer
should be kept as short as possible, because the number of X.25 virtual circuits
in use increases with the number of open network connections. The waiting
time is expressed in hundredths of a second (0.01 seconds per increment). The
values range from 0 (immediate disconnect request) through 30000 (300
seconds). The value initially set by the OSI manager is 500 (5 seconds).
ZX25NCON-MULTIPLEX
is the maximum number of outgoing transport connections to be multiplexed
on a network connection. This field applies only to protocol class 2, 3, or 4
communication over a connection-mode network service (CONS; X.25 is an
example). The values range from 1 through 512. The value initially set by the
OSI manager is 512.
Note that the actual decision for multiplexing an outgoing transport
connection on an existing network connection depends on two Layer 4
PROFILE or SERVICE attributes: ZCLASS and ZMULTIPLEX. Two or more
transport connections can be multiplexed if they all have the same local and
remote NSAP addresses; have ZCLASS set to 2, 3, or 4; and have
ZMULTIPLEX set to ZSPI-VAL-TRUE.