Juniper QFX3000-G QFabric, Руководство по развертыванию, Страница: 41 / 652

CHAPTER 2
Hardware Architecture Overview
• Understanding the QFabric System Hardware Architecture on page 15
• Understanding the Director Group on page 18
•
Understanding Routing Engines in the QFabric System on page 19
•
Understanding Interconnect Devices on page 21
• Understanding Node Devices on page 24
• Understanding Node Groups on page 27
•
Understanding Port Oversubscription on Node Devices on page 29
Understanding the QFabric System Hardware Architecture
Supported Platforms
QFabric System
•
QFabric System Hardware Architecture Overview on page 15
• QFX3000-G QFabric System Features on page 18
• QFX3000-M QFabric System Features on page 18
QFabric System Hardware Architecture Overview
The QFabric system is a single-layer networking tier that connects servers and storage
devices to one another across a high-speed, unified core fabric. You can view the QFabric
system as a single, extremely large, nonblocking, high-performance Layer 2 and Layer 3
switching system. The reason you can consider the QFabric system as a single system
is that the Director software running on the Director group allows the main QFabric system
administrator to access and configure every device and port in the QFabric system from
a single location. Although you configure the system as a single entity, the fabric contains
four major hardware components. The hardware components can be chassis-based,
group-based, or a hybrid of the two. As a result, it is important to understand the four
types of generic QFabric system components and their functions, regardless of which
hardware environment you decide to implement. A representation of these components
is shown in
Figure 3 on page 16 .
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