expensive to do, but keeps the traffic under the network administrator's control for longer, allowing operators of well-provisioned networks to offer a higher quality of service to their customers. It can also be preferred when connecting to content providers; if content providers use cold-potato routing, they may escape from paying for the cost of links between cities. Cold-potato routing is prone to misconfiguration as well as poor coordination between two networks. In such scenarios, packets can be routed further distances and can allow another autonomous system to manipulate routing in a network for various purposes. Cold-potato routing requires a level of trust between two networks that either side will not attempt to "cheat" the other. Some content networks favor the use of cold-potato routing (multi exit discriminator exchange/honoring) in order to deliver content from replicated server farms closer to the end-user. Route announcement policy The terms can also be used to describe the route announcement policy of a network: by choosing to announce their network at a large number of points at the periphery of another autonomous system, a provider can pull incoming traffic onto their network as soon as possible, ensuring that the traffic stays on their network all the way to their customer's connection. References Internet architecture