IBM ATM OC-3c manual Access the Physical Layer Statistics Screen, Are there Physical Layer Errors?

The numbered steps in this section relate to the numbered steps shown in Figure D-1.

Access the Physical Layer Statistics Screen

aSelect the SWITCH MANAGEMENT option from the Main Menu. The Switch Management screen is displayed.

bEnsure that the Port option is selected in the Management Level field.

cEnsure that the ATM port number is entered in the Port ID field. For example the ATM port is:

■Port 13 on an IBM 8271 Nways Ethernet LAN Switch Model 612 and IBM 8271 Nways Ethernet LAN Switch Model 712

■Port 25 on an IBM 8271 Nways Ethernet LAN Switch Model 624 and IBM 8271 Nways Ethernet LAN Switch Model 524

dSelect the STATS button. The ATM Port Statistics screen is displayed.

eSelect the PHYSICAL button to display the SONET or SDH physical layer statistics. An example of the Physical Layer Statistics screen is shown in Figure D-2.

Identifying the Problem D-5

Figure D-2ATM Physical Layer Statistics

Are there Physical Layer Errors?

aIf the OCD State field is set to Fail, there is a problem with the physical connection.

bIf there are a lot of errors, there is a problem with the physical connection.

Is the error rate high?

Yes — go to step 3. No — go to step 4.