Arron Scott wrote:
Personally, I think both can be false economies, causing less efficient bandwidth utilisation, and less reliable links for many users, trying to iron out routing problems, resiliency decisions, global filtering and dampening of long prefixes.
Less efficient bandwidth utilisation is a likely outcome, however it is possible to obtain some efficiencies by moving less time sensitive traffic to a cheaper, crappier, and/or more heavily loaded links. ISPs can do this in a multi-homed environment to a reasonable degree without upstream support. On the issue of reliability, there is almost always increased complexity at larger, upstream providers. The result is that given two organisations with clue, the larger, upstream provider will always be less reliable. This is one reason ISPs need to multi-home, but others (like having more than one telco, cable into the building, etc.) are also important. -Craig - To unsubscribe from nznog, send email to majordomo(a)list.waikato.ac.nz where the body of your message reads: unsubscribe nznog