What was/is the largest production network (in number of end nodes) that used/uses RIP as the IGP?
Xerox routed a few thousand subnets of 13/8 with RIP (v1!) as late as 1998. Dunno if that's large enough.
Bill
Its pretty big. Most of the data is not verifiable, but a profile of 100-10,000 subnets, between 5-2000 nodes per subnet w/ RIPv1 seems to be emerging for sites like Xerox as well as old NSFnet regionals. On the other hand, reports of large, multinational networks running static routing in their cores seem to indicate a desire to have routing in the core more stable than any dynamic protocol will allow. With the growth in the number of injected prefixes and varient paths, one might say that the "value proposition" of dynamic routing is not what it once was... Or it could be that the folks running the big networks are more comfortable with manual/static routing systems? Such environments certainly provide easier means to set enforcable service level agreements. But my muse has gotten the better of me. --bill