On Wed, 29 Jan 2003, Mike Bernico wrote:
> > > Hi, > > I apologize if this has been asked before. I work for an ISP that > started very small (hundreds of T1 and 56k customers) and has grown very > large in the last few years (thousands of T1 customers, as well as DS3 > customers and OC3 customers). > > We currently use an IGP to route between our distribution routers and > the CPE routers we manage. This has historically worked very well. We > have recently begun running into scalability issues however. We have > some distribution routers that have over 1000 T1 interfaces on them. > This is causing some problems with stability in that edge IGP. Does any > other service provider use an IGP all the way to the customer for non > BGP customers or are we the only one? I have a feeling we maybe are. So, if customers bounce your IGP churns away? And customers have access to your IGP data (provided they break into the CPE, which is trivial, eh?)