Specifications

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Cisco MGX 8800/8900 Series Software Configuration Guide
Release 5.1, Part Number OL-6482-01, Rev. A0, January 25, 2005
Chapter 9 Switch Operating Procedures
Managing PXM1E and AXSM Card Diagnostics
Bit Count : 3091031099
Bit Count Received : 3091031099
Bit Error Count : 0
Bit Error Rate (BER) : 0
Bit Counter Overflowed : 6 <times>
BERT is in sync.
Deleting a Configured Bit Error Rate Test
There are two ways to terminate a configured BERT.
1. Enter the delbert <SM Interface> command. Replace <SM Interface> with the service module
interface number in the format slot.line.port. In the following example, the user deletes BERT from
line 1 on port 2 in the PXM1E in slot 7.
Unknown.7.PXM.a > delbert 7.1.1
2. Enter the cnfbert command with the -en option disabled. (See Table 9-34 for a description of the
cnfbert command parameters.)
Unknown.7.PXM.a > cnfbert -cbif 25.1.0 -pat 1 -lpbk 14 -en 6
Managing PXM1E and AXSM Card Diagnostics
Diagnostics tests run on all the major hardware components that belong to the PXM1E or AXSM front
card and its lower back cards, and the connection path between these components. You can configure a
hardware-oriented test to check the health of the active and standby PXM1E or AXSM front card. Tests
can be run on the standby card, the active card, or both cards at the same time.
PXM1E and AXSM cards support both online and offline diagnostics.
• Online diagnostics tests run in the background while a card is in an operational state. These tests are
non-intrusive and run with minimal overhead. Online diagnostics can be used to detect hardware
errors. The goal is to monitor any potential errors at a card level while a card is in normal operation.
You can stop a test by issuing a new diagnostic configuration to disable it. If the online diagnostics
test fails on an active AXSM, a switchover is triggered, the active card becomes the standby, and an
error message appears declaring that the standby card as failed. If the online diagnostics test fails
on an active PXM1E, no switchover is triggered.
Note Online diagnostics do not detect operational errors.
• Off-line diagnostics ensure the standby card is ready to be switched over to. Offline diagnostics tests
are performed only on the standby card. Areas for diagnosis include hardware components and cell
paths. Off-line diagnostics are destructive.
Intensive tests are performed on a card including memory tests and registers read/write tests. It
temporarily puts a standby card out of service and makes it unavailable to be switched over to in
case of active card failure. When tests are done, the card is reset to its normal state. If the active card
fails while the standby card is running off-line diagnostics, off-line diagnostics are immediately
aborted