It's UWAweek 21 (1st semester, week 12)

help3002

This forum is provided to promote discussion amongst students enrolled in CITS3002 Computer Networks.

Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!"  followup message. How do I ask a good question?

Chris is away until 4th June. Dr Atif Mansoor is the unit's coordinator until then.
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 UWA week 19 (1st semester, week 10) ↓
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3:11am Fri 10th May, Christopher M.

ANONYMOUS wrote:
> I'm attempting to do this exact thing where as the station starts up it sends its name to all its neighbours (before any requests are made), then in the main server loop with select() each station picks up on neighboring station's names. But for me I'm having issues where not all the names come back, and instead only some of them do. Some others are just not received and I'm unsure as to why that would be happening even though the select() function is present and should be able to handle the availability of sockets for when they are readable.
One possibility - if you're starting all of your station servers from a script then, when one of them transmits that first 'hello' datagram, its destination server might not have started yet. The datagram is transmitted, but there's no server at the destination host and port there to receive it. Try - before transmitting your first datagram, sleep(2) to give all servers a chance to start. ??

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