[AG-TECH] Ports used in AG - part 2

Michael Daw mike.daw at man.ac.uk
Wed Oct 23 05:03:37 CDT 2002


As to the question about the bridges. Unicast clients to either bridge
(Argonne or QuickBridge) see just the same as multicast clients. The only
difference is the potential for lag as incoming traffic goes to the bridge
server and then to the client (and outgoing goes to the bridge server before
being propogated among everyone else).

--Mike

> -----Original Message-----
> From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov]On
> Behalf Of Randy Groves
> Sent: 23 October 2002 00:04
> To: ag-tech at mcs.anl.gov
> Subject: Re: [AG-TECH] Ports used in AG - part 2
>
>
> Thanks for the info that all of you have supplied.  I still have one
> question that hasn't been answered, though.  How many tools,
> clients, etc.
> that are used in AG are 'port shifters'?  That is, how many respond on a
> different port from the port on which the incoming request  was made?  Is
> this information anywhere to be had?
>
> Most important to me right at the moment, is the action of the
> Argonne MSB
> (source not available) and not having had any real-live experience with
> QuickBridge - it's action - specifically on both what a unicast
> client sees
> on the unicast side of the bridge.
>
> Thanks!!
>
> -randy
>
>   At 08:55 AM 10/18/2002 -0500, Michael Miller wrote:
> >Randy,
> >
> >The vv.dat file included with the quickbridge contains a list of all the
> >IP's and ports used for the various ANL venues.  I'm not sure how up to
> >date that is, but it's a good place to start.  Also the IP's and ports
> >used on NCSA's venues server can be found here:
> >http://agschedule.ncsa.uiuc.edu/venues.asp
> >
> >Beyond that there is VNC and DPPT, and perhaps RPPT.  Also any polycom
> >addresses you want to link with will need to be opened.
> >
> >
> >Michael Miller
> >NCSA
> >
> >At 03:01 PM 10/17/2002 -0700, you wrote:
> >
> >>I'm faced with having to detail the ports used in AG work to our network
> >>folks who have decided that our present external connection, which is
> >>getting upgraded, needs a port filter applied.  I BELIEVE, but I haven't
> >>verified, that this box is smart enough that we don't have to detail all
> >>the ports from which we will be originating transmissions, but incoming
> >>ports that don't correspond to outgoing ports are an unknown for me.  Is
> >>there a document, or some collected wisdom, that I can tap?
> >>
> >>Unfortunately, I don't think that 'leave all the ports open' is going to
> >>be accepted as a valid answer.
> >>
> >>Thanks!!
> >>
> >>-randy
> >
> >Thanx,
> >
> >Michael Miller
> >System Engineer
> >Visualization Technology Support
> >Computing and Data Management
> >National Center for Supercomputing Applications
> >University of Illinois - UC
> >
> >"If you're clear in your vision and trust the people in your team with
> >clear objectives, they will invariably do their best to achieve
> everything
> >desired, and usually deliver everything you could have hoped for
> and even
> >more." -Paul Debevec
> >
>
>
>
>




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