Some features of the vRouter—for example, BGP, OSPF, and IPsec VPN—produce feature-specific log messages that can be enabled and disabled within the configuration node for that feature. When you enable logging for a system feature, the log messages are sent to whatever destinations are configured for syslog.

By default, log messages are sent to the main log file. You can configure syslog to send log messages to a file you specify in the /var/log/user directory.