Re: [Ntp] Symmetric mode

[Danny Mayer <[e-mail]>]

On 9/25/22 3:09 AM, Hal Murray wrote:
>>> It uses twice as many packets.
>> No, it doesn't. Run it and check the packet traffic. Yes each side sends  a
>> packet to the other the same as if both were referencing the other as
>> servers
> We had a pronoun binding mixed up.
>
> A setup with a pair of client/server connections will use twice as much
> traffic as a single symmetric connection.

I realized over the weekend that people have misunderstood how symmetric 
mode works and think that there is just one packet exchange between 
peers. That is incorrect. That's not how it works.

Symmetric mode works almost identically to client/server modes on the 
wire. The only difference is that client/server use modes 3 and 4 while 
symmetric peer use mode 1 or 2 depending on whether these are active or 
passive modes. You should see no difference on the wire between 
client/server and symmetric modes except for the mode value.

>
>>> It works with NTS.
>> NTS dropped it in the interested of getting NTS out.
> Same issue.  NTS works today if you use client/server mode.
>
It would be trivial to add to symmetric mode, see above.

Danny