[zeromq-dev] zyre

[Utsav Drolia]

I agree, WiFi direct is mostly an abomination. But, there is a useful thing it offers - discovery. 
Even if you don’t use it for actual data communication, you can use it to discover nearby devices.

> On Mar 20, 2015, at 1:54 PM, Pieter Hintjens <ph at imatix.com> wrote:
> 
> WiFi direct is an abomination yet might be usable. I've no dogma here.
> What works works.
> 
> On Fri, Mar 20, 2015 at 5:53 PM, Utsav Drolia <utsavdrolia at gmail.com> wrote:
>> Apart from other discovery methods, have you thought of other communication technologies?
>> For example, wifi-direct, Wifi 802.11z (TDLS), or bluetooth (if the data consists of small messages).
>> 
>> I know adhoc-wifi is pretty much shot on most devices - but wifi-direct is available (at least on Android).
>> Given the way wifi-direct works, zyre should work on it the exact same way it works over wifi access points.
>> The only issue with wifi-direct on Android is the annoying pop-up to accept the connection every time a new connection takes place.
>> 
>> 
>>> On Mar 20, 2015, at 9:41 AM, Pieter Hintjens <ph at imatix.com> wrote:
>>> 
>>> Could you provide me a spec for the multicast? Then I'll add it to the RFC.
>>> 
>>> The other discovery methods I'd like to eventually make are bluetooth
>>> and manual (i.e. provide the Zyre API with node endpoints taken from
>>> arbitrary mechanisms).
>>> 
>>> On Fri, Mar 20, 2015 at 10:34 AM, Arnaud Loonstra <arnaud at sphaero.org> wrote:
>>>> Zbeacon in Pyre supports multicast which can traverse network segments.
>>>> As long as your network supports it.
>>>> 
>>>> Discovery mechanisms are kind of difficult. We have 3 methods now in
>>>> different versions of Zyre/Pyre/...
>>>> - broadcast beacon
>>>> - multicast beacon
>>>> - gossip
>>>> 
>>>> I'm hoping to get some more methods but I won't be working on that
>>>> until the end of the year. If anybody has good pointers, ideas about
>>>> useful mechanisms please post it.
>>>> 
>>>> Rg,
>>>> 
>>>> Arnaud
>>>> 
>>>> On 2015-03-20 00:18, Joss Gray wrote:
>>>>> zbeacon broadcasts udp packets broadcast for discovery so they wont
>>>>> be
>>>>> able to cross subnets.
>>>>> 
>>>>> You will have to change the broadcast domain like you mentioned.
>>>>> 
>>>>> On Thu, Mar 19, 2015 at 11:08 PM, Andrew Hume <andrew at humeweb.com
>>>>> [3]>
>>>>> wrote:
>>>>> 
>>>>>> we’re trying to run tyre (actually, the gyre implementation)
>>>>>> across different subnets
>>>>>> (that is, one node is in 10.20.59.xx and the other in
>>>>>> 10.120.45.xx). they don’t see each other.
>>>>>> what would be the best way to have them see each other?
>>>>>> 
>>>>>> we could change the broadcast domain to 255.255.0.0 but that seems
>>>>>> vaguely dodgy.
>>>>>> any other hints?
>>>>>> 
>>>>>>       andrew
>>>>>> 
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>>>>> 
>>>>> 
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>>>> 
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