| Bug ID |
10753
|
| Summary |
PROFINET DiagnosisData.ChannelProperties: Maintenance bit definitions swapped
|
| Product |
Wireshark
|
| Version |
1.12.2
|
| Hardware |
x86-64
|
| OS |
Windows 7
|
| Status |
UNCONFIRMED
|
| Severity |
Normal
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Build Information:
Version 1.12.2 (v1.12.2-0-g898fa22 from master-1.12)
--
>From specification (PN-AL-protocol_2722_V23Ed2MU1_Mar14), Table 526:
MaintenanceRequired Bit 9; MaintenanceDemanded Bit 10; Usage;
0x00; 0x00; Fault;
0x01; 0x00; Maintenance required;
0x00; 0x01; Maintenance demanded;
0x01; 0x01; QualifiedChannelQualifier[a];
[a]: This indicates that the severity is coded in the field
QualifiedChannelQualifier (see Figure 88).
Note: Maintenance required/demanded bits seem to be swapped in current
implementation.
Steps to reproduce: Product-specific. For a fiber optic device, try pulling the
contact out slightly to reduce the link power margin. This should create
maintenance alarms in two steps; MaintenanceRequired when the margin drops
below 2dB and MaintenanceDemanded when the margin drops below 0dB.
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