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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Commands and Trouble-Clearing Aids
Page 8-486status periodic-scheduled
8
STATUS INTERPRETATION SECTION
The "Total No. of Links" minus the "No. of links that are established" equals the
number of links which are down. Links that are down do not necessarily imply
that there is a Packet Control circuit pack failure. A link goes down if there is a
failure on any of the components through which it passes. These components
include the Packet Control circuit pack, the Packet Bus, the Expansion Interface
circuit pack, the BRI circuit pack, and the endpoint itself. By knowing which
components can cause a link terminating on the Packet Control circuit pack to go
down, and by having an idea of how many links go through each component, it is
possible to determine which components are the most likely to have failed.
For example, when all of the links are down (no links are established) it is likely
that there is a failure with a component through which all of the links pass. All
links always pass through the Packet Control circuit pack and the PPN Packet
Bus. Thus, these two components are likely to have failed. If all of the packet
endpoints are in one EPN, then that EPN’s Packet Bus is also a likely to have
failed. It is unlikely that the failure is with an individual BRI circuit pack, since that
only affects links passing through that one circuit pack (unless there is only one
BRI circuit pack in the system, in which case that circuit pack may have failed).
Conversely, if only a few links are down, then it is not likely that the fault is with the
Packet Control circuit pack or the PPN Packet Bus, since a fault on either of these
would normally affect all links equally. In this case, the fault is more likely to be on
an individual BRI circuit pack or endpoint.
!
CAUTION:
The purpose of the information described above is to provide general
information about the causes of link failures. This information should be
used in conjunction with the procedures found throughout this manual, and
not as a replacement for those procedures.
Feature Interactions
In a high or critical reliability system, an attempt to get the status of the
packet-control that resides in the standby processor complex is not allowed.
status periodic-scheduled
This command displays the status of periodic and scheduled maintenance
testing performed by the system.
Synopsis
status periodic-scheduled
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