User`s guide

8 007-3938-003
2: Using the L1 and L2 Controllers
0 - local brick (the brick to which the USB cable is attached). Other than
0, the meaning of other values are system/device specific.
rrr is the rack number
t is the type of brick (C-brick, I-brick, and so on)
ss is the slot number
p is the partition (not present if the system is not partitioned).
A brick is identified by its rack and slot. In the example shown above, 003c01 is a C-brick
in rack 3 and unit position 1.
Setting Command Targeting
If a command is not understood by the L2 system controller, in general it is passed on to
the L1 system controllers. The destination determines which L1s receive the command.
A destination is a range of racks and slots, specified as follows:
rack <rack list> slot <slot list>
The <rack list> specifies a list of racks. This can be a list delimited by commas, such that
2,4,7 specifies racks 2, 4, and 7. You can use a dash to specify a range of racks, such that
2-4 specifies racks 2, 3, and 4. Both nomenclatures can be combined, such that 2-4,7
specifies racks 2, 3, 4, and 7.
You can specify the <slot list> using the same nomenclature. The slot number, sometimes
referred to as a bay number, is the unit position number located on the rack, slightly
above where the bottom of the brick sits. Each rack unit position number is located
toward the top of the two lines that mark the unit position that the number represents.
For example, the rack numbering for a brick located in slot 10 would appear on the left
front side of the rack, as shown in Figure 2-1:
Figure 2-1 Rack Numbering
10
(The bottom of the brick sits here.)