Specifications
9-80
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 Bit Error Rate Tests
Unknown.7.PXM.a > cnfbert -cbif <LSMnum> -pat <bertPattern> -lpbk <lpbk> -sbe
<singleBitErrInsert> -cir <dropIteration> -en <enable>
In the following example, the user enables a BERT on line 1 in port 0 on the service module in slot 25.
The BERT pattern is set to 1 (all zeros), and loopback is set to 14.
Unknown.7.PXM.a > cnfbert -cbif 25.1.0 -pat 1 -lpbk 14 -en 6
Step 5 After the BERT has been running for at least 30 minutes, enter the dspbert <bay> command to display
the BERT result. Replace bay with 0 to indicate the upper bay, or 1 to indicate the lower bay.
Note For the PXM1E, the bay will always be 2 because BERT is only run on the lower bay. BERT is
supported on both bays for AXSM cards.
Note The dspbert command can be issued even while the BERT is in operation.
Unknown.7.PXM.a > dspbert 2
Replace bay with 1 to indicate the lower bay.
Unknown.7.PXM.a > dspbert 2
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
Table 9-34 cnfbert Command Parameters
Parameter Description
LSMnum Where LSMnum = LSMslot.Line.Port
LSMslot = 1-6,9-14,17-22,25-30
Line = 1 - MAX_LINES
Port = 1 - MAX_PORTS for Port Test,
0 for Line Test
bertPattern Test pattern to be generated. See the list of patterns supported for a complete
listing. for details use dspbertcap command.
lpbk For details use dspbertcap command.
singleBitErrInsert Different options of error insertion rates, where singleBitErrInsert is “1” (noError),
or “| 2" (insert).
Note Injection of bit error should be done after configuring BERT
dropIteration where dropIteration is between 1 and 32, used only if loopback is 5:latchDS0Drop.
enable Enables/disables BERT. Enter “4” to enable BERT or “6” to disable BERT.