How to reboot

The DECnet routers reboot automatically in case of problems so it is extremely rare that they need to be rebooted by hand. The only condition under which this has proved useful so far is when the NML (Network Management Language) object crahes. This results in the ALARM system displaying the message "CERNxx is down". In fact the traffic is being routed correctly; only the monitoring capability is lost. The most effective way to reboot is to physically power off and on the router concerned.

However

first make sure that know how to restart the CAMTEC X.25 line (see the section 'DECnet Circuits Down').