DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1247PKT-INT (Packet Interface Circuit Pack)
9
Administration
There are no add or remove commands associated with the Packet Interfac e
circuit packs. In stead, Packet Interface field s (

Packet Intf1, Packet Intf2, Packet

Intf3

) that app ear u nder the SPE Op tio nal Bo ards cate gor y on th e sec ond pag e
of the System Parameters Maintenance Form are provided to ind icate whether
the Packet Interface circu it pack is administered .
If a Packet Interface circuit p ack is physica lly present, the correspond ing Packet
Interface field is set to ‘‘y’’ when the system b oots, and no chang e to that field is
allowed. (If the system is equip ped with dup licated SPEs, a Packet Interface field
is set to ‘‘y ’’ whe n eith er SPE c arrie r con tain s a Pac ket In terf ace c irc uit p ack in
the corresponding position.) If a Packet Interface circuit pack is not present, then
the value for the Packet Interface field is read from translation data stored on disk
or tape. If the field is set to ‘‘n,’’ a Packet Interfac e circuit pac k may be
administered by c hanging the corresp onding Packet Interfac e field to ‘‘y.’’
Packet Interface Circuit Pack Replacement
When replacing a Packet Interfac e circuit pac k, follow the procedure used for
repl acin g any cir cuit pac k in t he SPE ca rrie r. The SPE c arr ier mu st be pow ered
down before a Packet Interface circuit pack i s removed or added and then the
SPE carrier must be powered back up after the circuit pac k is inserted.
Packet Interface circuit p acks should not b e plugged in or removed from a
running system since conf iguration tables in software need to be updated at
system restart time. This is also true for Packet Interface circ uit packs in the
standby SPE carrier when the system is equipp ed with duplic ated SPEs. Refer to

Repla cing SPE Circ uit Packs

in Chapter 5, ‘‘Alarms, Errors, and Troubleshooting’’
for more information on the proced ures for replacing ci rcuit packs in a stand by
SPE carr i er.
Demand Reset of a Packet Interface Board
A dem and r eset o f a Pac ket I nter face circ uit p ac k on an act ive SPE vi a the e ntry
of a reset packet-interface command will b e denied by syste m software if the
Packet Interface is in service (has no t been placed in an out-of-service state by
background main tenance software). Otherwise, a reset of an in-servic e Packet
Interface circuit p ack would cause seve re service disruption inc luding the loss of
all existing calls and d ropped links to ad juncts such as AUDIX. The software that
controls Packet Interface maintenanc e puts a Packet Interface c ircuit pack in the
out-of-service state if that circ uit pack has been reset three times withi n the last
15 minutes. as part of the automatic rec overy action that is initiated when a
hardware fatal fault condition is d etected.
A dem and r eset o f a Pac ket I nter face circ uit p ac k on th e stan db y SPE is no t
disruptive and is allowed regardless of the service state of the associated
maintenance software. When a standby Packet Inter face circuit p ack is reset,
memory shadowing is turned off and then back on. A memory refresh is then
performed to upd ate the state of the standby Packet Interfac e circuit pac k and to