Cisco Cisco uBR-MC3Gx60V-RPHY Broadband Processing Engine Installation Guide

The logging details for the OBFL feature are described below:

OBFL is enabled by default. You need to enable the feature if it has been disabled previously.

On the Cisco UBR-MC5x20H line card logging begins after the system starts up.

OBFL samples the Cisco UBR-MC5x20H voltage sensors every five minutes.

Voltage data is stored only when it is different from the last stored record.

The maximum logging time is two hours, hence, a new record is stored every two hours, regardless 
of data variation.

Fatal Hardware events are logged with OBFL.

Logs are organized as current (continuous) and historical (summarized) data records.

OBFL logging has no impact on performance.

OBFL logs are recorded in the bootflash device on the Cisco UBR-MC5x20H line card. The logs are 
maintained in a separate 2MB partition, distinct from the Bootflash filesystem partition where the crash 
dumps are stored. OBFL log files are not accessible to the operator and their contents can be viewed only 
by using the OBFL CLI commands.

The show logging onboard command displays the logs from the OBFL data.

For information on OBFL commands, see the "Configuration Tasks" chapter in the Onboard Failure 
Logging feature guide located at the following URL:

Following are safety guidelines that you should follow when working with any equipment that connects 
to electrical power.

Statement numbers (for example, Statement 1030) at the end of a Warning refer to specific warnings and 
their translations in the 

document.

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. 
Statement 1030.