Juniper QFX3000-G QFabric, Руководство по развертыванию, Страница: 65 / 652

separated physically from the QFabric system control plane and uses a different network.
Figure 12 on page 39 shows an example diagram of the QFabric system data plane
network.
Figure 12: QFabric System Data Plane Network
c0
IC0
IC1
Node0
Node0:fte-0/1/1
Node0:xe-0/0/0
Node0:fte-0/1/3
Node0:xe-0/0/46
IC0:fte-7/0/0
IC1:fte-0/0/0
Server
Storage
Data
Plane
g041162
The QFabric system data plane includes the following high-speed data connections and
elements:
•
10-Gigabit Ethernet or 2-Gbps, 4-Gbps, or 8-Gbps Fibre Channel connections between
QFabric system endpoints (such as servers or storage devices) and the Node devices.
• 40-Gbps quad, small form-factor pluggable plus (QSFP+) connections between the
Node devices and the Interconnect devices.
•
10-Gigabit Ethernet connections between external networks and the Node devices
contained in the network Node group.
• A fabric control protocol, used to distribute route information to all devices connected
to the QFabric system data plane.
QFabric System Fabric
Unlike traditional data centers that employ a multi-tiered hierarchy of switches, a QFabric
system contains a single tier of Node devices connected to one another across a backplane
of Interconnect devices. The QFabric system fabric is a distributed, multistage network
that consists of a fabric queuing and scheduling system implemented in the Node devices,
and a distributed cross-connect system implemented in the Interconnect devices. The
39 Copyright © 2015, Juniper Networks, Inc.
Chapter 3: Software Architecture Overview