[Hampshire] [OT] Big network outage

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Author: Rob Malpass
Date:  
To: Hampshire LUG Discussion List
Subject: [Hampshire] [OT] Big network outage
Hi all

I hope this doesn't turn into a thread that spirals off in all directions but if someone could shed some light on this for me (a self taught enthusiastic amateur) I'd be grateful.

Today at work, there was no web access. To the best of my knowledge, internet email was ok. Calling our IT guys, a recorded message said there was a national problem and n3 (whoever they are) and BT were working on it.

Being the enthusiastic amateur that I am, I did a few tests from the W2k command line...

ping www.bbc.co.uk - no packet loss
ping www.abc.net.au - 100% packet loss
ping www.itn.co.uk - 100% packet loss

[and on all 3 occasions, it reported the IP address it was trying to ping so I conclude (probably incorrectly) no DNS issue]

I also tried tracert www.bbc.co.uk which sometimes worked, sometimes timed out at hops that didn't identify themselves.

Webpages looked as if they would work, but after the first few bytes e.g. just the google logo, they all just hung.

What I don't understand is why if a website pings ok (no packet loss), we couldn't get at the content - clearly there wasn't an error at the server end.

Cheers me dears

Rob