Re: Multicast example in ANTS: "Nowhere to send"

[Patrick Tullmann <tullmann@cs.utah.edu>]

[Editor's apology: As you may well know, majordomo tries to be smart
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> From: Samarth Shah <shshah@cs.uiuc.edu>
> To: Timothy Stack <stack@cs.utah.edu>
> cc: <janos-discuss@fast.cs.utah.edu>
> Subject: Re: Multicast example in ANTS: "Nowhere to send"
> 
> Hi,
> 
> Upon further investigation, I have determined that the Nowhere to send
> errors appears for some particular values of delays in multicast.config.
> The problem seems to be that, after a while, the Multicast Subscribe
> requests from the Data Subscribers cease to be received at the Router.
> 
> That is, the Data Subscriber keeps printing periodically that it is
> sending the subscribe request. However, the Router freezes and does not
> print _anything_, while it was previously printing that it received these
> subscription packets.
> 
> I am wondering if there could be a problem with simultaneous reception of
> subscribe requests at the router or something, because it probably has to
> do with the relative timing of the delays in multicast.config.
> 
> Thanks and regards,
> Samarth.