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 pac k physically interacts with the PKT-BUS
(Packet Bus). For certain types of Packet Interfac e circuit pack errors, it
may be difficult to isolate the fa ult to one of these two components. In
these cases, Packet Interface mainten ance 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 c ircuit pack affects the op eration
and maintenance of other circ uit packs connect ed to the Packet bus. This
includes:
1. Expansion Interface circu it pack maintenance (EXP-I NTF)
2. Packet Data Line as part of the System Port (PDATA-BD)
A System Port is used for connectivity to end points connected t o
the TDM bus such as CDR and dial-up G3-MTs.
3. BRI applications (BRI-PT)
4. Packet Gateway applic ations (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 de termine the service state of the Packet
Interface circuit p acks (e.g., in-service/out-of-servic e) and information
about the total number of Packet Interfa ce links assigned to a Packet
Interface circuit p ack. For a Packet Interface circ uit pack in the standby
SPE in a system equipped with dup licated SPEs, a Packet Interface is
shown to be a ‘‘standby’’ mod e if it is not out of service due to a failure
condition. The number of links for a stand by Packet Interface is always
zero.
In general, if all links for a Packet Interfac e circuit pack on an Ac tive SPE
are shown in the ‘‘Failed Links’’ category, there may be a fault on the
Packet Interface circuit p ack or on the Packet Bus that caused all links to
go down. If only a small pe rcentage of the links are shown as ‘‘Failed
Links,’’ then the Packet Interface circ uit pack is prob ably not the source of
the problem. Examples of the source of individual link failures includ e the
failure of a BRI telephone set, a disconnect of the c ord to a BRI set, and a
failure or removal of an Expansion Interface circ uit pack in an Expansion
Port Network, The disconnect of a BRI set causes three link fai lures and
the removal of a EI board in an EPN causes one link failure. Refer to
Chapter 8, ‘‘Maintenance Command s’’, for more information on the status
packet-interface command.