OSI/TS Management Programming Manual
ALTER SERVICE Command
Commands and Responses
5–44 056786 Tandem Computers Incorporated
ZESIS-NOTIFY-IS
controls whether the ES-IS protocol reports its configuration whenever it
determines that a new intermediate system is first available. This field is
applicable only if ZESIS-ENABLE is set to ZSPI-VAL-TRUE. If
ZESIS-NOTIFY-IS is set to ZSPI-VAL-TRUE, the configuration is reported; if
set to ZSPI-VAL-FALSE, it is not reported. The default value is ZSPI-VAL-
FALSE.
ZESIS-XSUM
controls whether the ES-IS protocol includes a checksum in the outgoing
TPDUs. This field is applicable only if ZESIS-ENABLE is set to ZSPI-VAL-
TRUE. If ZESIS-XSUM is set to ZSPI-VAL-TRUE, a checksum is included; if
set to ZSPI-VAL-FALSE, a checksum is not included. The default value is
ZSPI-VAL-FALSE.
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
seconds). The default value is 100 (1 second).
ZESIS-QUERY-RETRY
is the maximum amount of time the ES-IS protocol should retry NSAP-SNPA
mapping before terminating its inquiry. This field is applicable only if ZESIS-
ENABLE is set to ZSPI-VAL-TRUE. The values range from 0 to 32767, with a
default value of 3.
ZIP-NULL-LAYER
enables or disables the generation of the null network layer (inactive subset)
protocol header. This attribute is valid only when ZCLASS is ZOS4-VAL-
CLASS-4 (a layer 4 attribute). This attribute is used only for LAN networks.
The default is ZSPI-VAL-FALSE.
ZIP-LIFETIME
is the length of the interval in which an IPPDU can exist before being
discarded during its transit through the subnetwork. This field is applicable
only if the full IP subset is enabled. 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).
The default value is 1500 (15 seconds).