In our case our DSL lines all terminate on an ATM T1 on one of our routers. I've configured OAM to test the lines and to declare the line down when OAM cells are not returned. With this I immediately know when a DSL line is down and can take action to correct it.
This brings up another key point. Sure, we're using DSL, but it's not going to the public internet. We have a private line service in which the provider multiplexes our DSL circuits onto the aforementioned ATM circuit. This alleviates the concerns some people have about running private data over public networks. John >>> "Erick B." 12/4/02 9:33:35 PM >>> I would second Chuck on this. I have seen some folk with DSL backup when the backup didn't work. Always was something with the provider. If you go this route, make sure to test/use the DSL connection on a weekly or bi-weekly basis. Same could be said for ISDN though. I guess it all depends on how good your provider is :) My home DSL connection has been a roller coaster ride as well. --- "Mirza, Timur" wrote: > thx for the heads up...we are researching dsl as a > backup solution...we have > 1500 sites on isdn backup & we have tons of isdn > telco issues > > -----Original Message----- > From: The Long and Winding Road > [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, December 04, 2002 12:47 PM > To: [EMAIL PROTECTED] > Subject: Re: is there anyone migrating isdn backup > to dsl backup > [7:58568] > > > ""Mirza, Timur"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > we are looking to migrate isdn backup at our > retail stores to dsl...is > there > > anyone that has performed this already? > > > CL: having done a number of data networks that were > DSL based ( but none > migrating ISDN to DSL ) I can offer this > consideration: if a DSL link goes > down for whatever reason, it may take more than a > couple of days for your > telco to get it back up and working. You will want > to have some solid > service level agreements in place. DSL on the whole > is extremely reliable. > The problem tends to be during those rare instances > when it is down for > whatever reason, some telcos seem to have DSL repair > low on their priority > list. > > CL: other than that caviat, why not? > > > > > > Timur Mirza > > Principal Network Engineer > > Network Planning & Engineering, West Region > > 15505-B Sand Canyon Avenue > > Irvine, California 92618 > > Verizon Wireless > > 949.286.6623 (o) > > 949.697.7964 (c) [EMAIL PROTECTED] __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58622&t=58622 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
