Cisco ASR1006 Configuration Guide - Page 412

Tracing and Trace Management Trace files can be copied to other destinations using most file transfer functions (such as FTP, TFTP, and so on) and opened using a plaintext editor. Tracing cannot be disabled on the Cisco ASR 1000 Series Router. Trace levels, however, which set the message types that generate trace output, are user-configurable and can be set using the platform trace commands. If a user wants to modify the trace level to increase or decrease the amount of trace message output, the user should set a new tracing level using the platform trace commands. Trace levels can be set by process using the all-modules keyword within the platform trace commands, or by module within a process. See the platform trace command reference for more information on this command, and the "Tracing Levels" section on page 2 of this document for additional information on tracing levels. Tracing Levels Tracing levels determine how much information about a module should be stored in the trace buffer or file. shows all of the trace levels that are available and provides descriptions of what types of messages are displayed with each tracing level. Table 3 Tracing Levels and Descriptions Trace Level Emergency Alert Critical Error Warning Notice Informational Debug Verbose Noise Level Number 0 1 2 3 4 5 6 7 8 - Description The message is regarding an issue that makes the system unusable. The message is regarding an action that must be taken immediately. The message is regarding a critical condition. This is the default setting for every module on the Cisco ASR 1000 Series Routers. The message is regarding a system error. The message is regarding a system warning The message is regarding a significant issue, but the router is still working normally. The message is useful for informational purposes only. The message provides debug-level output. All possible tracing messages are sent. All possible trace messages for the module are logged. The noise level is always equal to the highest possible tracing level. Even if a future enhancement to tracing introduces a higher tracing level, the noise level will become equal to the level of that new enhancement. Trace level settings are leveled, meaning that every setting will contain all messages from the lower setting plus the messages from its own setting. For instance, setting the trace level to 3(error) ensures that the trace file will contain all output for the 0 (emergencies), 1 (alerts), 2 (critical), and 3 (error) settings. Setting the trace level to 4 (warning) will ensure that all trace output for the specific module will be included in that trace file. The default tracing level for every module on the Cisco ASR 1000 Series Router is notice. Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide 2