By Gary Lee
Cloud Networking: knowing Cloud-Based facts heart Networks explains the evolution of proven networking applied sciences into allotted, cloud-based networks. beginning with an outline of cloud applied sciences, the publication explains how cloud info heart networks leverage allotted platforms for community virtualization, garage networking, and software-defined networking. the writer deals insider standpoint to key elements that make a cloud community attainable similar to swap textile know-how and information heart networking criteria. the ultimate chapters look forward to advancements in architectures, cloth know-how, interconnections, and extra. via the tip of the e-book, readers will comprehend middle networking applied sciences and the way they are utilized in a cloud info center.
- Understand present and rising networking applied sciences that mix to shape cloud facts middle networks
- Explains the evolution of information facilities from firm to personal and public cloud networks
- Reviews community virtualization criteria for multi-tenant information heart environments
- Includes state-of-the-art aspect at the newest swap cloth applied sciences from the networking staff in Intel
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Additional info for Cloud Networking: Understanding Cloud-based Data Center Networks
As shown in the figure, ToR switches are used with high-bandwidth links to the core and the core routers have been replaced with simpler core switches with a larger number of ports allowing them to absorb the aggregation function, making this a “flatter” network. This type of network can better support all of the east-west traffic that is seen in large data centers today with lower latency and lower latency variation. In addition, by moving the tunneling and forwarding intelligence into the ToR switch, a simpler core switch can be developed using high-bandwidth tag forwarding much like an MPLS label switch router.
The switch operates at the link layer providing forwarding, QoS, credit-based flow control and data integrity services. Due to the relative simplicity of the switch design, InfiniBand provides very high-bandwidth links and forward packets with very low latency, making it an ideal solution for HPC applications. We will provide more information on high performance computing in Chapter 10. ETHERNET In the last section, we described several popular communication protocols that have been used in both enterprise and carrier networks.
This header includes information such as the source and destination port that the application uses, a sequence number, an acknowledgment number, a checksum, and congestion management information. The IP layer deals with all of the addressing details and adds a source and destination IP address to the TCP packet. The Internet shown in the figure contains multiple routers that forward data based on this TCP/IP header information. These routers are interconnected using layer 2 protocols such as Ethernet that apply their own L2 headers.