Specifications

Protocol Messages Page 80
VERIFICATION (4/8) : B =
A verification code that must match before the receiving system
can honor the request. If
4 bytes long, no other fields can be
included. If
8 bytes long, the remaining fields are included.
PROCESSOR (1)
: B =
As described for the Request Program message.
CONTROL (1)
: BM =
Instructions to the system as to what device to use for the
operation. Values are:
Bit Meaning Value Meaning
0 Boot-server 0 System default
1 Requesting system
1 Boot-device
0 System default
1 Specified device
DEVICE ID (C-17)
: =
The device to use. Present only for CONTROL<Boot-device> =
Specified device. Interpretation is specific to the receiving
system.
SOFTWARE ID (C-17)
: =
The software the system is to load.
Software identification consists of:
FORM ID
Where:
FORM (1)
: B =
The general type bf software. Values are:
Value Meaning
0 No software id
>O The length of the ID field
- 1 Standard operating system
-2 Maintenance system
A specific software ID. Present only if FORM > 0.
Interpretation is specific to the receiving system.