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View Full Version : is my host lying?? savvis is bad boy? BGP troubles


deja
11-20-2001, 02:50 AM
Hi,
I've been happy with my host for my dedicated server. This week though their have been a couple of long outages where their whole network was dead or dissappeared from the net as if the router/s went dead into their datacenter. No ip addreses could be pinged ..etc.

The head tech guru told me this:

"SAVVIS keeps on losing our BGP routes. They just brought them back. etc..."

Question: Could this sort of problem be caused by misconfiguration of the routers by my host or do back bone providers like savvis in fact drop bgp info..

I have a link to a mae-west looking glass server..is there some way for me to tell who the likely suspects are if this happens again in terms of figuring out if it is savvis..or my host?

If this is too elementary a question..got any links to help me learn?

Does savvis have a bad rep for this sort of stuff?

Thanks
Deja

RackMy.com
11-20-2001, 11:38 AM
Are you hosted with Savvis. Savvis is not know for doing this, but anything is possible.

palmtree
11-20-2001, 06:33 PM
From the bgp stuff I've done, bgp is supposed to keep downtime from happening.. once you have it setup, its supposed to work, but that does mean making sure your routers are configured correctly. As for "dropping the bgp routes" I've never heard of that before on a carrier side.. If they have different carrier's, then they should still be up-- that is unless something goes wrong with your hosts routers.. however most hosts have backup routers though.. so still, doesn't make sense..

I guess one thing you could do is a tracert when the server is down.. and see where it stops at.. that will give you an idea on where the problem is. If it stops at the carrier, then your host doesn't know what they are doing with bgp. It is supposed to sense the fail and route down a different path. If it stops at the host, then its really your hosts problem..

laterz,
raqworld

Planet Z
11-21-2001, 12:37 PM
Originally posted by Raqworld
From the bgp stuff I've done, bgp is supposed to keep downtime from happening.. once you have it setup, its supposed to work, but that does mean making sure your routers are configured correctly. As for "dropping the bgp routes" I've never heard of that before on a carrier side..


I've never heard of backbones dropping BGP routes and causing a host to go down. We did, however, have an instance of a backbone (Sprint) advertising the wrong BGP routes for us, which messed up our routing. They had put an old router which we had used back online without reconfiguring it correctly which managed to make a mess.

It shouln't happen more than once, though.