Maintenance Object Repair Procedures
555-233-123
10-1306
Issue 4 May 2002
Private Looparound Tests (#885)
This test requests the Packet Interface to execute its three private looparound
tests: Level 2 looparound, Broadcast path looparound, and Level 3 looparound.
These tests verify the health of the Packet Interface’s Packet Bus interface, as
well as the translation RAM, inward and outward bound data paths, parity
indications and CRC calculations, and the Level 3 processing firmware.
■
Level 2 (LAPD) Link Looparound
LAPD is a link level protocol that is used for all system links. This test
verifies the health of the processing of these links.
1793
FAIL
The Flash memory checksum test failed. The Packet Interface
may still be operational but it will fail if a reset is executed.
1. Retry the command.
2. If the same error code occurs
a. If the system is not equipped with the High Reliability or
Critical Reliability Configuration replace the
TN2401/TN794 NetPkt circuit pack at a time that would
cause the least disruption of service. The Packet Interface
is still functional but should be replaced since it may not
operate after a system reboot and it will enter a fatal fault
state if it is reset for other reasons.
b. If the system is equipped with the High Reliability or
Critical Reliability Configuration and if the Packet Interface
is on the standby SPE, replace the standby
TN2401/TN794 NetPkt circuit pack.
c. If the system is equipped with the High Reliability or
Critical Reliability Configuration and if the Packet Interface
is on the active SPE, perform a planned SPE interchange
by entering the command reset system interchange.
Use the status syst 1command to determine that the
standby SPE is in standby mode, and retry the test
command. If the test of the Packet Interface on the
standby SPE continues to fail, replace the standby
TN2401/TN794 NetPkt circuit pack.
PASS
The Packet Interface’s firmware is in a proper state. If problems
are still reported on the Packet Interface, check for errors on the
Private Looparound test (#885) and Maintenance Looparound
Test (#886).
Table 10-484.
TEST #884 Memory Checksum Test — Continued
Error
Code
Test
Result
Description/Recommendation
Continued on next page
Summary of Contents for Definity SI
Page 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Page 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...