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Re: [ecf-dev] avoid broadcast 
Hi Abhisek, Markus, and all,
I would like to jump in here and make the following suggestion :) If others think this is a good idea, then someone can open a documentation enhancement request/bug.
For each of the discovery providers that ECF now supports (zeroconf, xmlfile-based discovery, service locator protocol (slp), and apache zookeeper), I think we should put together a wiki page(s) that describes how the discovery can be configured...for lans, wans, etc. For example, what are the system properties that the discovery provider understands/can respond to, and how it affects the discovery communication? As well, we should have in one reference location a description of the ECF OSGi service properties that can be used to customize the discovery for any/all providers (e.g. the service uri, the service name, etc...I'll bet you didn't know these things could be customized, but they can :-).
I expect that questions like Abhisek's about configuring the various discovery providers (in particular) will be fairly common, and so I believe it makes sense to get out in front of this sort of request prior to the release.
I can't currently commit to doing this myself right away...so apologize for suggesting work that must be done by others. But I suspect that if we all contribute to coordinate our work on this documentation, then it can/will go pretty quickly and easily...and be very useful for any/all consumers of ECF remote services.
Any takers? How would the discovery contributors in the ECF community like to coordinate work on this? I think that Markus, as the discovery API lead should probably decide how/whether/when to do this and how to get consistency in format (e.g. template?), so I'll leave those choices to him. 

Make sense?

Thanks,

Scott


abhisek saikia wrote:

Hi Macus
   Can i configure a set of ips only to be discovered.?

Thanks and Regards
Abhisek
On Fri, May 21, 2010 at 1:59 PM, Markus Alexander Kuppe <ecf-dev_eclipse.org <http://ecf-dev_eclipse.org>@lemmster.de <http://lemmster.de>> wrote: 

    On 05/21/2010 10:12 AM, abhisek saikia wrote:
    > Hi
    >   I am using ECF generic and jmdns discovery.How can i avoid
    broadcast
    > of remote service.Is there any way to specify ip and port range to
    > broadcast?

    Hi Abhisek,

    JmDNS does not use broadcast but multicast and the spec defines the
    multicast group "224.0.0.251" and port "5353" respectively. If needed,
    the port can be tweaked by "net.mdns.port". If you also need to adjust
    the multicast group, you will have to file an enhancement request
    upstream [0].
    Btw. if you want to disable discovery completely, just undeploy the
    jmdns provider.

    Markus

    [0] http://jmdns.sourceforge.net/
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