Juniper QFX Series User Manual

NOTE: If you use Fibre Channel SFP+ transceivers in ports 0 through 5
or ports 42 through 47, you must configure the entire block of ports as
Fibre Channel ports. For example, if you use a Fibre Channel SFP+
transceiver in any of the ports 0 through 5, then ports 0 through 5 must
be configured as Fibre Channel ports. If you use a Fibre Channel SFP+
transceiver in any of the ports 42 through 47, then ports 42 through 47
must be configured as Fibre Channel ports. You then cannot use
10-Gigabit Ethernet SFP+ transceivers in these ports.
•
Up to 36 of the access ports can be used for SFP transceivers. Gigabit Ethernet SFP
transceivers can be used in ports 6 through 41.
CAUTION: Do not place a copper transceiver in an access port directly
above or below another copper transceiver. Internal damageto the access
ports and device can occur. Because of this limitation, a maximum of 18
coppertransceiverscan be installedin ports 6 through 41. We recommend
using only the top row of access ports for copper transceivers.
•
Uplink ports—The QFX3500 device has four uplink ports (Q0 through Q3) that support
up to four QSFP+ to four SFP+ copper breakout cables. See Interface Specifications
forQSFP+ DAC Breakout CablesforQFX3500DeviceUplink Ports. When the QFX3500
is used as a Node device in a QFX3000 QFabric system, these uplink ports are used to
connect the QFX3500 Node devices to Interconnect devices. See “Interface
Specifications for Data Plane Connections for the QFabric System” on page 127.
NOTE: The QSFP+ uplink ports are not supported in Junos OS Release 11.1.
The QSFP+ uplink ports and QSFP+ to four SFP+ breakout cables are
supported in Junos OS Release 11.2 and later.
•
Access port and uplink port LEDs
Figure 36 on page 67 shows the rear panel of a QFX3500 device.
Figure 36: QFX3500 Device Rear Panel
10-Gigabit Ethernet
or Fibre Channel ports
QSFP+ uplink ports
10-Gigabit Ethernet
or Fibre Channel ports
10-Gigabit Ethernet
or 1-Gigabit Ethernet ports
LA
ST
LA
ST
LA
ST
LA
ST
Q0 Q1 Q2 Q3 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 470 1 2 3 4 5 6 7 8 9 34 35 36 37 38 39 40 41 42 43 44 45 46 47
g050013
0 1 2 3 4 5
42 43 44 45 46 47
67Copyright © 2012, Juniper Networks, Inc.
Chapter 4: QFX3500 Overview

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)