PacketCloud: Hosting In-network Services in a Cloud-like Environment

ed fingerprint for bandwidth saving. An ISP can deploy a source-controlled caching service in different PacketCloud sites located at stub networks. We adopt share cache architecture proposed in [24] for redundancy elimination, which has been used as a building block in redundancy-aware routing [2] as well. Every packet travels through two PacketCloud sites, one ingress site nearby the sender and one egress site nearby the receiver. Every site pair utilizes a shared cache for frequently appeared contents by saving these information (fingerprint storage and packet store) in the FIS. The redundant contents are encoded at the ingress site and decoded at the egress site, thus the unnecessary traffic between these two sites can be saved. Since this service is source-controlled, the ISP may advertise lower price to encourage the more users to use the caching-aware packet. Inter-domain Multicast: IP Multicast is an efficient data delivery manner, which can play a key role in different popular applications, such as massive multiplayer games, IPTV, conferencing. Although IP Multicast was proposed decades ago, there are still very few large scale deployments so far, especially in the inter-domain level. The only known feasible inter-domain IP multicast approach which supports multisource applications is Free Riding Multicast (FRM) [22]. For every FRM-enabled domain, its BGP advertisements will