On Wed, Oct 30, 2002 at 08:53:57AM -0800, Red Hat wrote: > > There is a provider called ADN that claims to have multiple T-3's to
This is only relative to the number of customers/amount of bandwidth they've sold. Could be enough, or not enough, just depending. > several backbone providers. (their engineer claims I will be 3-4 hops > from a top tier backbone) My question is, if I switch to ADN, my DSL > circuit is still routed thru Pac Bell's CO, but will I get the same > performance? The distance is not the issue, Pac Bell was much faster 1 > year ago, they have merely sold more circuits in my area. Basically, > what piece of equipment along the route is generally the bottleneck in > neighborhood CO's? (FYI my distance to the CO is 3200 feet) I don't think there is any one answer. It is very possible to have slowdowns occur because of line or equipment problems in the telco leg, that might even be specific to your circuit (and hard to identify as well). Have they checked that out? It is even possible to have real good looking sync numbers, but high error levels in the DSL/ATM segment that cause a lot of retransmission modem <-> dslam, and thus slowdowns. Obviously changing ISPs can't help this out, but then you'd know where it is anyway. The symptoms of oversold ISP bandwidth include: fluctuates based on time of day (typically it is worst at night until midnight or so), and packet loss during peak hours (good to test with ping using large packets, eg 1500 bytes). There are also some common sources of RFI interference that might mimic these symptoms too though. > The ADN engineer claims it will be much faster but he may just be trying > to make a buck. Maybe, but I'd wager talking to a pacbell engineer is near impossible (if they are like bellsouth). -- Hal Burgiss -- redhat-list mailing list unsubscribe mailto:redhat-list-request@;redhat.com?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
