Describing Cisco UCS Components
Cisco UCS X-Series Modular System The Cisco UCS X-Series Modular system, shown in Figure 16-17, is the latest generation of the Cisco UCS. Here are the major new features: Figure 16-17 Cisco UCS X-Series Modular System The new Cisco UCS X9508 chassis provides a new and adaptable substitute for the first generation of the […]
Cisco UCS Blade Chassis The Cisco UCS 5108 chassis incorporates unified fabric; integrated, embedded management; and Fabric Extender technology. It uses fewer physical components, has no need for independent management, and enables greater energy efficiency than traditional blade server chassis. This simplicity eliminates the need for dedicated chassis management and blade switches, reduces cabling, and […]
FLOGI Process After the N_Port and the F_Port are physically connected, the negotiations at the physical layer are successful, and the electrical parameters are in sync, the link negotiation and the registration to the fabric start. This is the FLOGI process, which can be described as the initial bootstrap process that occurs when an N_Port […]
Cisco Unified Fabric Historically, data centers have always had two separate major communication infrastructures: the local area network (LAN) and the storage area network (SAN). The LAN infrastructure provides connectivity between the users and the applications running on the servers, and between the various applications in the data center, such as databases, application front ends, […]
FCoE Architecture The FCoE is a transport protocol defined by the American National Standards Institute (ANSI) T11 committee. It has the needed functionality and enhancements to create a lossless environment and to carry the FC frames encapsulated into Ethernet frames. In the FCoE protocol, the lower layers of the Fibre Channel Protocol are replaced with […]
Fibre Channel Flow Control One of the major goals for the FC Protocol communication is to create a secure and reliable environment that allows all the FC frames to be received at the destination and to be received in the correct order. You saw how the whole FC switched fabric converges as well as how […]