ECE385H1 Study Guide - Final Guide: Icann, Network Switching Subsystem, Ip Fragmentation

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4. 4 ip: internet protocol: 20 bytes of header. Larger ip datagram divided within network due to mtu(maximum transfer size: reassembled only at final destination. Ip header bits used to identify order related to fragments. Length : 1500 = 20 header + 1480 data: fragflag, offset. Ip addressing: classful, 32 bit identified for host, router interface (each interface has a ip address) Ip, next-hop ip, physical addr. , flags (h/g: h: router is to a host (network, g: route is to a router, short term: cidr, private ip address for intranets. Ip address were being exhausted by 1994, two solutions came about: Long term: ipv6: supernetting: summarize a contiguous group of class c addr. Classless inter-domain routing (cidr: allocation principle, networks represented by prefix and mask, route according to prefix of addr not class, routing table entry has Isp gets address space from internet corporation for.