![DEC KA681 Скачать руководство пользователя страница 138](http://html1.mh-extra.com/html/dec/ka681/ka681_system-maintenance_2461319138.webp)
System Initialization and Acceptance Testing (Normal Operation)
4.7 Operating System Bootstrap
Table 4–5 (Cont.) Network Maintenance Operations Summary
Function
Role
Transmit
Receive
IEEE 802.3 Messages
5
Exchange
ID
Requester
—–
—–
Server
XID_RSP
in response to
XID_CMD
Test
Requester
—–
—–
Server
TEST_RSP
in response to
TEST_CMD
5
IEEE 802.2 support of XID and TEST is limited to Class 1 operations.
Table 4–6 Supported MOP Messages
Message Type
Message Fields
DUMP/LOAD
MEM_LOAD_w_
XFER
Code
00
Load #
nn
Load addr
aa-aa-aa-aa
Image data
None
Xfer addr
aa-aa-aa-
aa
MEM_LOAD
Code
02
Load #
nn
Load addr
aa-aa-aa-aa
Image data
dd-...
REQ_PROGRAM
Code
08
Device
25 LQA
49
SGEC
Format
01 V3
04 V4
Program
02
Sys
SW ID
3
C-17
1
C-128
2
If C[1]
>00 Len
00 No
ID
FF OS
FE
Maint
Procesr
00 Sys
Info
(see
SYSTEM_
ID)
1
MOP V3.0 only.
2
MOP x4.0 only.
3
Software ID field is load from the string stored in the 40 byte field, RPB$T_FILE, of the RPB on a solicited
boot.
(continued on next page)
4–36 System Initialization and Acceptance Testing (Normal Operation)