google video chat works faster on local LAN

Posted by bashrc on Super User See other posts from Super User or by bashrc
Published on 2012-09-29T14:29:09Z Indexed on 2012/09/29 15:42 UTC
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proxy

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lan

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google-talk

Recently the internet speed on our college LAN has dropped drastically. ( Avg file download speed 13 Kbps :( ). However g-talk's video chat remains unbelievably fluent when done with someone within the college's LAN. However video chat is practically impossible for anyone else who is not in the college network. My college has a proxy server through which all computers inside the college connect to the internet. I suspect its due to the proxy server.

Also how g-talk maintains video chat? Is it something in the mechanism that speeds up video chat between two clients with the same IP? Since all computers use the same proxy,their IP would appear to be the same to google server.

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