Demand test descriptions and error codes - Avaya Support

Maintenance Object Interactions
● Packet Bus maintenance
A Packet Interface physically interacts with the PKT-BUS. It may be difficult to isolate faults
to one or the other component for certain types of Packet Interface errors. In each of these
cases, Packet Interface maintenance forwards an error report to packet bus maintenance,
where it records a packet bus fault in the error log and runs Packet Bus tests.
● Packet Interface maintenance
The operation of the IPSI circuit pack’s Packet Interface module affects the operation and
maintenance of other circuit packs connected to the packet bus. This includes:
1. BRI applications (BRI-PT)
2. Universal DS1 applications (UDS1) for ISDN/PRI applications
3. S8700-series Fiber-PNC: Expansion Interface circuit pack maintenance (EXP-INTF)
Some packet errors require examination of the Packet Interface’s operating status. To obtain
this information:
● Examine the Error and Alarm Logs for PKT-INT entries and determine which PKT-INT
the link is accessing.
● Use status sys-link to identify the PKT-INT location in this PN, or use status
sys-link to find the PKT-INT hardware used by the faulted link.
● Use test sys-link to troubleshoot the component.
● Use status packet-interface to determine the:
- service state of the Packet Interface, for example, in service/out of service
- total number of Packet Interface links assigned to a Packet Interface.
For a standby IPSI’s Packet Interface module in a high- or critical-reliability system
(duplicated IPSIs), the module is shown in standby mode if it is not out-of-service
because of a failure condition. The number of links for a standby Packet Interface
module is always zero.
In general, if every link for an active IPSI’s Packet Interface module is shown as a Failed
Link, there may be a fault on either the Packet Interface module or the packet bus that
caused every link to go down. If only a small percentage of the links are shown as Failed
Links, then the Packet Interface is probably not the source of the problem. Some typical
sources of individual link failures include:
● failed BRI telephone set
● disconnected cord to a BRI set, causes three link failures
● S8700-series Fiber-PNC: failed or removed EI circuit pack in a PN, causes one link failure
736 Maintenance Alarms for Communication Manager, Media Gateways and Servers