User`s guide

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2: Using the L1 and L2 Controllers
003c01> Ctrl+D
entering console mode 002c01 console, <CTRL-T> to escape to L1
Ctrl+T
escaping to L2 system controller, <CTRL-T> to send escape to L1
L2> Ctrl+T
escaping to L1 system controller
003c01-L1> l1
L1 command processor engaged, <CTRL-T> to exit.
003c01-L1>
Operating the L1 Controller
The L1 controller operates in one of the following two modes, each of which is discussed
in the sections that follow:
• L1 mode. The L1 prompt is visible and all input is directed to the L1 command
processor.
• Console mode from L1 mode. Output from the system is visible and all input is
directed to the system.
Note: The console mode from L1 mode is not supported if the system contains an L2
controller.
L1 Mode
The brick with which the L1 communicates in console mode is the system console or
global master, and you can view and set it with the select command. By default, the
C-brick attempts to communicate with its local CPUs when console mode is entered. If
the system has been powered on and either one of the bricks received a request to be the
system console, then the C-brick attempts to communicate with that brick.
When you see a prompt of the following form, the L1 is ready to accept commands.
001c19-L1>
Common operations include the following and are discussed in the sections that follow: