IBM 3708 Description page 266

Table 8-4 (Page 2 of 2). Bytes Checked by the 3708
Negative
Bytes Response Potential Problem
32 0835 Reserved. All bits must be off.
34 0835 Unsupported RTM definition (RU30 bit 4
=
1).
35 0835
Unsupported RTM time increment.
36-41 0835 Reserved. All bits must be off.
42 0835 Invalid number of boundaries or bits 0-3 are reserved and
must be off.
43-50 0835 Boundary was greater than 3FFF or bytes are not in
ascending order.
Note that the byte positions contained in the 0835 negative responses assume the
presence of an SNA address list and therefore, if one is not present, byte positions
are adjusted accordingly.
3708 Responses Format
The basic format of the 3708 solicited and unsolicited response is:
TH
RH
RU
RTM Header
Length to End of RU
RTM Data Reply Vector
SNA Address List
Target LU
PLU Associated with Target LU
Data Reset Flag Vector (if required)
RTM Status Response Vector
Relative Time Vector
RTM Data Vector (if required).
Table 8-5 on page 8-29 shows the SNA TH, RH, and RU definitions for the
solicited and unsolicited 3708 response.
Table 8-5 (Page
1
of
5).
SNA, TH, RH, and RU Definitions for Solicited and
Unsolicited 3708 Responses
Byte
Bit Value
Meaning
THO 0-3
b'OOlO'
FID
4-5
b'--'
MPF (segment)
6
b'O'
Reserved
7
b'O'
EFI
THI
-
X'OO'
TH2
X'OO' DAF'
TH3
X'OO' OAF'
TH4,5
X'OOOO'
SNF
Chapter 8. Network Management and Problem Determination
8-29