OSI/AS Management Programming Manual

INFO SERVICE Command
Commands and Responses
056785 Tandem Computers Incorporated 5–145
set to ZSPI-VAL-TRUE. If ZESIS-XSUM is set to ZSPI-VAL-TRUE, a checksum
is included; if it is set to ZSPI-VAL-FALSE, a checksum is not included.
ZESIS-QUERY-TIME
is the maximum amount of time the ES-IS protocol should wait for a reply to
its inquiry of NSAP-SNPA mapping before retrying or terminating its inquiry.
This field is applicable only if ZESIS-ENABLE is set to ZSPI-VAL-TRUE. The
waiting time is expressed in hundredths of a second (0.01 seconds per
increment). The values range from 1 (0.01 second) through 65535 (655.35
seconds).
ZESIS-QUERY-RETRY
is the maximum number of times unacknowledged NSAP-SNPA mapping
inquiries are retransmitted by the ES-IS protocol before the inquiry is
terminated. This field is applicable only if ZESIS-ENABLE is set to ZSPI-VAL-
TRUE. The values range from 0 through 32767.
ZIP-LIFETIME
is the length of the time interval during which an internet protocol data unit
(IPDU) can exist before being discarded during its transit through the
subnetwork. This field is applicable only if the full subset of the IP is enabled
(see “Operational Notes”). The interval is expressed in hundredths of a
second (0.01 seconds per increment), rounded down to the nearest half-
second. The values range from 100 (1 second) through 30000 (300 seconds).
ZIP-XSUM
controls whether a checksum is included in the outgoing IPDUs. This field is
applicable only if ZESIS-ENABLE is set to ZSPI-VAL-TRUE. If ZIP-XSUM is
set to ZSPI-VAL-TRUE, a checksum is included; if it is set to ZSPI-VAL-
FALSE, a checksum is not included.
ZIP-DISCARD-GEN-THLD
is the threshold value that the IP entity compares to the OSI/TS Layer 3
counter ZIP-DISCARD-GEN. This counter records the number of times the IP
entity discards a protocol data unit (PDU) for some reason other than
congestion, unrecognized address, expiration of lifetime, unsupported
protocol version or option, or 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.