18-03-2014, 02:15 PM
Data centre
Data centre.ppt (Size: 428.5 KB / Downloads: 19)
INTRODUCTION
A data center or data centre or computer centre (also datacenter or datacentre) is a facility used to house computer systems and associated components, such as telecommunications and storage systems. It generally includes redundant or backup power supplies, redundant data communications connections, environmental controls (e.g., air conditioning, fire suppression) and security devices.
Data center infrastructure
Data centre is an infrastructure solution serving as the central communication hub of a company.
The data center is home to the computational power, storage, and applications necessary to support an enterprise business .
The data center infrastructure is central to the IT architecture, from which all content is sourced or passes through. Proper planning of the data center infrastructure design is critical, and performance, resiliency, and scalability need to be carefully considered.
Core layer:
This layer is considered the backbone of the network and includes the high-end switches and high-speed cables such as fiber cables. This layer of the network does not route traffic at the LAN. In addition, no packet manipulation is done by devices in this layer. Rather, this layer is concerned with speed and ensures reliable delivery of packets.
Core Switch
Core switch is a switch, usually a L3, which is placed in the core layer of a hierarchical network model.
The most important function of core switch is to switch packets as fast a possible.
Also remember that devices at the core must be able to reach any device in the network ( not physically but within the routing table).