DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1250PKT-INT (Packet Interface Circuit Pack)
9
Maintenance Object Interactions
■ Packet Bus Maintenance
The Packet Interface circuit pack physically interacts with the PKT-BUS
(Packet Bus). For certain types of Packet Interface circuit pack errors, it
may be difficult to isolate the fault to one of these two components. In
these cases, Packet Interface maintenance will forward the error report to
the Packet Bus maintenance, thus causing Packet Bus maintenance to
record a Packet Bus fault in the hardware error log and to run appropriate
Packet Bus tests.
■ Packet Circuit Pack Maintenance
The operation of the Packet Interface circuit pack affects the operation
and maintenance of other circuit packs connected to the Packet bus. This
includes:
1. Expansion Interface circuit pack maintenance (EXP-INTF)
2. Packet Data Line as part of the System Port (PDATA-BD)
A System Port is used for connectivity to endpoints connected to
the TDM bus such as CDR and dial-up G3-MTs.
3. BRI applications (BRI-PT)
4. Packet Gateway applications (PGATE) for X.25 interfaces
5. Universal DS1 applications (UDS1) for ISDN/PRI applications
Some errors of Packet Circuit Packs may require examination of the
Packet Interface operating status. To obtain this information, examine the
Error and Alarm Logs for PKT-INT entries. Also issue the
status
packet-interface
command to determine the service state of the Packet
Interface circuit packs (e.g., in-service/out-of-service) and information
about the total number of Packet Interface links assigned to a Packet
Interface circuit pack. For a Packet Interface circuit pack in the standby
SPE in a system equipped with duplicated SPEs, a Packet Interface is
shown to be a ‘‘standby’’ mode if it is not out of service due to a failure
condition. The number of links for a standby Packet Interface is always
zero.
In general, if all links for a Packet Interface circuit pack on an Active SPE
are shown in the ‘‘Failed Links’’ category, there may be a fault on the
Packet Interface circuit pack or on the Packet Bus that caused all links to
go down. If only a small percentage of the links are shown as ‘‘Failed
Links,’’ then the Packet Interface circuit pack is probably not the source of
the problem. Examples of the source of individual link failures include the
failure of a BRI telephone set, a disconnect of the cord to a BRI set, and a
failure or removal of an Expansion Interface circuit pack in an Expansion
Port Network, The disconnect of a BRI set causes three link failures and
the removal of a EI board in an EPN causes one link failure. Refer to
Chapter 8, ‘‘Maintenance Commands’’
, for more information on the status
packet-interface command.
