| Bug ID |
10530
|
| Summary |
LLDP TIA TR Network Policy decode incorrect
|
| Product |
Wireshark
|
| Version |
1.12.1
|
| Hardware |
x86-64
|
| OS |
Windows 7
|
| Status |
UNCONFIRMED
|
| Severity |
Normal
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Created attachment 13127 [details]
Capture of LLDP packet
Build Information:
Version 1.12.1 (v1.12.1-0-g01b65bf from master-1.12)
--
LLDP Decodes LLDP TIA TR-41 Committee Network Policy incorrect.
In my example (see attachment) the voice application type is:
80 00 00
Specification:
//
---------------------------------------------------------------------------
// | TLV | LLDP | Application | U | T | X | VLAN ID | L2 | DSCP
|
// | header | MED | type | | | Prio | value
|
// | | header | | | | |
|
//
---------------------------------------------------------------------------
// | 2 bytes | 4 bytes | 1 byte | 3 bits | 12 bits | 3 bits | 6 bits
|
Wireshark decodes as:
U bit = 0
T bit = 0
X bit = 0
VLAN ID = 64
L2 Prio = 0
DSCP = 0
I think it has to be decoded as:
U bit = 1
T bit = 0
X bit = 0
VLAN ID = 0
L2 Prio = 0
DSCP = 0
Please verify
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