Specifications

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Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Chapter 7 Switch Operating Procedures
Diagnostics Support MGX 8850 and MGX 8950 Switches
Note The dspbert command can be issued even while the BERT is in operation.
In the following example, the user displays the BERT results for line 11 on an AXSME card located in
the upper bay.
Unknown.11.AXSME.a > dspbert 1.11
Start Date : 08/29/2002
Current Date : 08/29/2002
Start Time : 18:43:07
Current Time : 16:56:23
Physical Slot Number : 22
Logical Slot Number : 22
Line Number : 1 (Line test)
Device To Loop : Local Loopback
BERT Pattern : Double One Zero Pattern
Error Inject Count : 0
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 AXSME in slot 11.
Unknown.7.PXM45.a > delbert 11.1.1
2. Enter the cnfbert command with the -en option disabled. (See Table 7-46 for a description of the
cnfbert command parameters.)
Unknown.7.PXM.a > cnfbert -cbif 25.1.0 -pat 1 -lpbk 14 -en 6
Diagnostics Support MGX 8850 and MGX 8950 Switches
Diagnostics tests run on all the major hardware components that belong to the AXSM and PXM45 front
card and their 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 AXSME front card. Tests can be
run on standby card, the active card, or both cards at the same time.