A.A. 2016-17
Course schedule
PDF slides will be published on this site after each lesson.| Lesson no. | Date | Slides / References | Topics |
| 1 | 07/03/2017 | Course introduction. Datacenter architecture and organization. Rack layout. Cabling. TIA-942 Standard. Air conditioning and cooling plant. Power. Energy efficiency of a datacenter. Power Usage Effectiveness. Datacenter Tiers (UpTime Institute classification). Modular datacenters. Small-scale sample datacenter layouts. |
|
| 2 | 14/03/2017 | Ethernet switching basic concepts. VLANs. VLAN trunking. Inter-VLAN routing. Multi-layer switches and Virtual Switch Interfaces. Datacenter networking infrastructure. Access layer and aggregation layer. Access layer: ToR and EoR organizations. Bandwidth aggregation techniques. IEEE 802.3ad Link Aggregation. IEEE 802.1ax Link Aggregation Protocol LACP. |
|
| 3 | 21/03/2017 |
|
Switching theory fundamentals. Head-of-Line blocking. Clos networks. Clos theorem. Loop management in Ethernet networks. STP protocol. Datacenter networks: aggregation layer. Datacenter network infrastructure evolution. Fat-tree topology. Leaf-spine topology. Some examples of large scale datacenter networks. |
| 4 | 28/03/2017 |
Fat-tree: a scalable, commodity data center network architecture. Transparent Interconnection of Lots of Links (TRILL) and its use in datacenter networks. Multiple path routing in datacenter networks. Equal cost multi-path (ECMP). Improving ECMP load balancing with Flowlets (FLARE). Virtualization technologies and their use in modern datacenters. A Linux-based hypervisor: KVM. Introduction to VM networking. Hardware support to virtualization in modern NICs: SR-IOV. |
|
| 5 | 10/04/2017 |
|
SEMINAR "From Ethernet switching to virtual and programmable switching" - Prof. Stefano Secci, Université Pierre et Marie Curie (UPMC), Paris, France. This talk will resume the evolution of Ethernet switching and transport in the recent past, including IEEE 802.1 family of solutions and recent IETF solutions as well. We will then describe the challenges introduced by system virtualization and network programming in terms of switching and mapping capabilities for the switching fabric. The impact on data-center network architecture design will be presented as well. |
| 6 | 11/04/2017 |
|
SEMINAR "Embedding protocols for virtualized networks" - Prof. Stefano Secci, Université Pierre et Marie Curie (UPMC), Paris, France. This talk will present recent protocols defined for communications between virtual machines, in the network virtualization era where virtual machines can be dynamically orchestrated, i.e., migrated, resized and duplicated. We will devote a particular attention to IP mobility and virtual network management. Recent proposals made to link intra-datacenter network states to extra-datacenter network states, and to link virtual machine mobility to user mobility will be presented and evaluated. |
| 7 | 02/05/2017 | Software Defined Networking: concept and applications. OpenFlow. OpenFlow networks: proactive vs reactive control. Flow Tables. |
|
| 8 | 09/05/2017 | Open vSwitch. Open vSwitch as an OpenFlow switch. The Mininet network emulator. An OpenFlow tutorial with Mininet. OpenFlow controllers. The Floodlight OpenFlow controller. |
|
| 9 | 16/05/2017 | Guded tour to the SCoPE datacenter (Monte S.Angelo campus) | |
| 10 | 23/05/2017 |
Cloud computing. Cloud service models: IaaS, PaaS, SaaS. An introduction to Amazon AWS basic services: IAM, EC2 and S3. |
|
| 11 | 30/05/2017 |
An introduction to OpenStack. OpenStack: installation with DevStack and a quick tour. OpenStack dashboard and CLI commands. Storage technologies for datacenters: DAS, NAS and SAN. Fibre Channel. Network convergence. iSCSI. Fiber Channel over Ethernet (FCoE). | |
| 12 | 06/06/2017 |
WAN interconnection of datacenters. Metro Ethernet. Extended Layer-2 networks. Ethernet over MPLS. VPLS. IEEE 802.1ad (Q-in-Q). MPLS. VXLAN ed NVGRE. TCP performance problems in datacenter networks. TCP Incast. Datacenter-specific TCP variants: DCTCP. |
