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Online Diagnostics test
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Loopback Test Options
The loopback tests do not monitor the integrity of the data but rather the integrity of the path. The type
of loopback indicates the direction of test data transmission. The choices are:
•
•
•
Online Diagnostics test
The Online Diagnostics are used to test components on the PXM1 and SRM modules of the MGX 8230
while the shelf is running. Connections, states, and tasks are not affected by the tests.
The diagnostic test is invoked from the active PXM1. If a standby PXM1 exists and is in standby state,
it will also be tested. When the test is run, each component is checked and the results are presented on
the screen. Results are also saved to a log file.
Automatic Switchover
The Online Diagnostic command (oldiags) includes an option to automatically switch operations from
the active PXM1 to the standby PXM1 if a major problem is detected. This behavior is possible only
when a standby PXM1 is installed and no errors are detected on that standby PXM1 during the test.
Alarms
If a failure is detected and an automatic switchover is not performed, a major alarm is set. This alarm is
displayed in the card Major Alarm Bit Map field when the command dspcd is entered. The alarm
message indicates the failed PXM1 by slot.
Cisco MGX 8230 Edge Concentrator Installation and Configuration
6-56
Double 1-0 pattern
15
2
-1 pattern
20
2
-1 pattern
20
2
-1 QRSS pattern
23
2
-1 pattern
1 in 8 pattern
3 in 24 pattern
DDS-1 pattern
DDS-2 pattern
DDS-3 pattern
DDS-4 pattern
DDS-5 pattern
9
2
pattern
11
2
pattern
far end means the service module transmits data to the CPE and receives the data back
remote means the service module receives data from the CPE and loops back to the CPE
metallic means the service module receives data from the network and loops it back to the network
Chapter 6
Card and Service Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
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