Redundancy elimination as a primitive

摘要: Internet traffic is increasing at a tremendous rate. Recent reports suggest that the total amount of might grow 4X by 2015. This expected to put strain on installed network capacity. If left unaddressed, this issue could severely impact user experience in accessing content. Unfortunately, obvious solution upgrading link speeds too expensive and cannot keep up with rapid growth. In thesis, we explore alternate ways improving efficiency. particular, investigate removing redundant content transfers from improve its In recent years, protocol-independent redundancy elimination (RE) has emerged as powerful technique remove transfers. These techniques are used many WAN optimization products effective bandwidth stub access links. We benefits these using several terabytes packet payload traces find mechanisms give 60% savings. Motivated study, propose extend RE beyond links support primitive stack. We deploying network-layer service all routers. Such would expand links, applications, flows users. develop SmartRE realize maximal such an architecture practice. also argue for end-hosts. An end-system eliminate before it gets encrypted. It benefit last hop provide additional energy savings mobile devices. EndRE efficient under various resource constraints design low BufferHash efficiently indexing large cache settings. believe (network-layer or EndRE) greater than just Existing protocols can be redesigned better mind. redesigning routing engineering.