PTPv2 clocking options for AES67 / SMPTE Interoperability with Dante
The following table provides Audinate’s allowed ranges and default values (in bold) for several PTPv2 parameters.
A range (for example 0 .. 127) shows configurable value. Others are non-configurable.
|
|
Ad-Hoc Networks |
Dante Domain Manager managed Networks |
|||
|---|---|---|---|---|---|
|
AES67 |
AES67 (Default) |
AES67 (Custom) |
Custom (v1 + v2) |
SMPTE |
|
|
Domain |
0 |
0 .. 128 .. 255 |
0 .. 127 |
||
|
Priority 1 & 2 |
Device Specific* |
0…248…255 |
0 .. 128 .. 255 |
0 .. 128 .. 255 |
|
|
Announce Interval |
0 |
-3 .. -2 .. 1 |
|||
|
Announce Timeout Interval |
3 |
||||
|
Sync Interval |
-2 |
-7 .. -3 .. -1 |
|||
|
Delay-Req Interval |
0 |
||||
|
Timestamp Mechanism |
One or Two Step |
||||
|
Delay Mechanism |
End to End (E2E) |
||||
|
TTL* |
16 |
1..16..63 |
|||
Device Specific*
|
Product Type |
Implementation |
Enable Sync to External |
Preferred Leader |
Priority 1 |
Priority 2 |
|---|---|---|---|---|---|
|
High Channel Count Hardware |
Brooklyn Broadway HC PCIe IP Core Zynq |
No |
No |
247 |
112 |
|
Yes |
119 |
112 |
|||
|
Yes |
No |
242 |
112 |
||
|
Yes |
114 |
112 |
|||
|
Low Channel Count Hardware |
UltimoX AVIO (DIOx) Pro S1 |
N/A |
No |
249 |
112 (1Gbps) 120 (100Mpbs) |
|
Yes |
121 |
||||
|
Software |
Dante Embedded Platform (DEP) Dante AV-H Dante AV-A |
N/A |
N/A |
252 (HW timestamp) 253 (no HW timestamp) |
112 |
Intervals Memo
|
Interval Value (n) |
Interval Time (2n) |
Frequency |
|---|---|---|
|
4 |
16 s |
0,0625 Hz |
|
3 |
8 s |
0,125 Hz |
|
2 |
4 s |
0,25 Hz |
|
1 |
2 s |
0,5 Hz |
|
0 |
1 s |
1 Hz |
|
-1 |
0,5 s |
2 Hz |
|
-2 |
0,25 s |
4 Hz |
|
-3 |
0,125 s |
8 Hz |
|
-4 |
0,0625 s |
16 Hz |
|
-5 |
0,03125 s |
32 Hz |
|
-6 |
0,015625 s |
64 Hz |
|
-7 |
0,0078125 s |
128 Hz |
Note 1: TTL > 1 is supported only on FPGA based platforms.
Note 2: Unicast delay requests only work for PTP v1 ports when using Dante Controller.
