Juniper QFX3000-G QFabric, Руководство по развертыванию, Страница: 36 / 652

Table 3: QFabric System Terms (continued)
Definition Term
Standalone data center switch with 10-Gigabit Ethernet access ports and
40-Gbps quad, small form-factor pluggable plus (QSFP+) uplink interfaces.
You can (optionally) configure some of the access ports as 2-Gbps, 4-Gbps,
or 8-Gbps Fibre Channel ports or Gigabit Ethernet ports.
The QFX3500 switch can be converted to a QFabric system Node device as
part of a complete QFabric system. The switch is packaged in an
industry-standard 1U, 19-inch rack-mounted enclosure. (See also
QFX3500
Node device .)
QFX3500 switch
Node device that connects to either endpoint systems (such as servers and
storage devices) or external networks in a QFabric system. It is packaged in an
industry-standard 1U, 19-inch rack-mounted enclosure.
The QFX3600 Node device provides 16 40-Gbps QSFP+ ports. By default, 4
ports (labeled
Q0
through
Q3
) are configured for 40-Gbps uplink connections
between your Node device and your Interconnect device, and 12 ports (labeled
Q4
through
Q15
) use QSFP+ direct-attach copper (DAC) breakout cables or
QSFP+ transceivers with fiber breakout cables to support 48 10-Gigabit
Ethernet interfaces for connections to either endpoint systems (such as servers
and storage devices) or external networks. Optionally, you can choose to
configure the first eight ports (
Q0 through Q7 ) for uplink connections between
your Node device and your Interconnect device, and ports Q2 through Q15 for
10-Gigabit Ethernet connections to either endpoint systems or external
networks. (See also
QFX3600 switch .)
QFX3600 Node device
Standalone data center switch with 16 40-Gbps quad, small form-factor
pluggable plus (QSFP+) interfaces. By default, all the 16 ports operate as
40-Gigabit Ethernet ports. Optionally, you can choose to configure the 40-Gbps
ports to operate as four 10-Gigabit Ethernet ports. You can use QSFP+ to four
SFP+ breakout cables to connect the 10-Gigabit Ethernet ports to other servers,
storage, and switches.
The QFX3600 switch can be converted to a QFabric system Node device as
part of a complete QFabric system. The switch is packaged in an
industry-standard 1U, 19-inch rack-mounted enclosure. (See also
QFX3600
Node device .)
QFX3600 switch
Set of two Node devices that connect to servers or storage devices. Link
aggregation group (LAG) interfaces can span the Node devices within a
redundant server Node group. redundant server Node group
Method used in the QFabric system to upgrade the software for components
in a systematic, low-impact way. A rolling upgrade begins with the Director
group, proceeds to the fabric (Interconnect devices), and finishes with the
Node groups. rolling upgrade
Juniper Networks-proprietary processing entity that implements QFabric system
control plane functions, routing protocols, system management, and user
access. Routing Engines can be either physical or virtual entities.
The Routing Engine functions in a QFabric system are sometimes handled by
Node devices (when connected to endpoints), but mostly implemented by
the Director group (to provide support for QFabric system establishment,
maintenance, and other tasks).
Routing Engine
Copyright © 2015, Juniper Networks, Inc. 10
QFX3000-G QFabric System Deployment Guide