By Ying-Dar Lin, Ren-Hung Hwang, Fred Baker
Ying-Dar Lin, Ren-Hung Hwang, and Fred Baker’s Computer Networks: An Open resource Approach is the 1st textual content to enforce an open resource method, discussing the community layers, their functions, and the implementation concerns. The booklet positive aspects fifty six open-source code examples to slender the distance among area wisdom and hands-on abilities. scholars examine by means of doing and are aided via the book's vast pedagogy.
Lin/Hwang/Baker is designed for the 1st path in laptop networks for desktop technology undergraduates or first 12 months graduate scholars.
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Extra info for Computer Networks: An Open Source Approach
Whether MPLS can be massively deployed onto the original Internet architecture is still under research, but the new demands, QoS for guaranteed performance, multicasting for group communications or distributions, and wire-speed forwarding for much faster infrastructure, will not quit until they can be satisfied. indd 23 24/12/10 4:11 PM 24 Computer Networks: An Open Source Approach spectrum of statefulness, where the state means not only the table entries memorized in nodes but also link bandwidth reserved for streams of flows or connections.
When a packet is being transmitted over a link, it takes some time to propagate the packet’s data from one side to the other side of the link, be it point-to-point or broadcast. If the packet traverses through a path with 10 nodes and hence 10 links, this process will be repeated 10 times. 3 illustrates the queuing process at a node and the node’s out-link, which can be modeled as a queuing system with a queue and a server. , CPU, memory, ASIC). On the other hand, the service time in a link is actually the sum of (1) the transmission time, which depends on how fast the transceiver (transmitter and receiver) can pump the data and how large the packet is, and (2) the propagation time, which depends on how long the transmitted signal has to propagate.
A wide area network (WAN) usually has a mesh topology due to the randomness in the locations of geographically dispersed network sites. A tree topology is inefficient in WAN’s case because in a tree network, all traffic has to ascend toward the root and at some branch descend to the destination node. If the traffic volume between two leaf nodes is huge, a tree network might need an additional point-to-point link to connect them directly, which then creates a loop in the topology and turns the tree into a mesh.