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Iptables Tutorial 1.2.2It can in other words use different paths to reach the end host. TCP in comparison breaks if the transport path breaks, unless the IP protocol corrects it. • Reliable transmission. It uses checksums and SACK to detect corrupted, damaged, discarded, duplicated and reordered data. It can then retransmit data as necessary. This is pretty much the same as TCP, but SCTP is more resilient when it comes to reordered data and allows for faster pickups. • Message oriented. Each message can be framed and hence you can keep tabs on the structure and order of the datastream. TCP is byte oriented and all you get is a stream of bytes without any order between different data inside. You need an extra layer of abstraction in TCP in other words. • Rate adaptive. It is developed to cooperate and co-exist with TCP for bandwidth. It scales up and down based on network load conditions just the same as TCP. It also has the same algorithms for slow starting when packets where lost. ECN is also supported. • Multi-homing. As previously mentioned, it is able to set up different end nodes directly in the protocol, and hence doesn't have to rely on the IP layer for resilience. • Multi-streaming ...» |
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