Installation Guide

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ExtremeSwitching X670-G2-72x Switch Ports and Slots on page 72
Each base model is available with either front-to-back or back-to-front cooling. There is no operational
dierence between these switch versions.
The X670-G2-48x-4q and X670-G2-72x have SFP+ ports that support dual interface speeds of Gigabit
Ethernet and 10-gigabit Ethernet. SFP+ ports can accept both gigabit SFP and 10 gigabit SFP+, and
depending upon the pluggable optics you choose, SFP+ ports can work in both modes.
The front panel of the X670-G2-48x-4q switch also provides four QSFP+ based 40 Gb ports. With
appropriate cabling, each of the four QSFP+ ports can be partitioned into four 10 Gb ports.
A serial console port on the front panel of the X670-G2 series switch allows you to connect a terminal
and perform local management. An Ethernet management port can be used to connect the system to a
parallel management network for administration. Alternatively, you can use an Ethernet cable to
connect this port directly to a laptop to view and locally manage the switch configuration. The Ethernet
management port supports 10/100/1000 Mbps speeds.
Switch cooling is provided by replaceable fan modules. Fan modules are available in two dierent
models that direct the airflow either from front to back or from back to front. All installed fan modules
must be of the same model, so that they all direct the airflow in the same direction.
Note
Ensure that all fan module slots are filled when the switch is powered on. Fan modules can be
hot-swapped after power has been turned on.
Two power supply bays accommodate either AC or DC power supplies. Power supplies have integrated
cooling fans that operate independently of the switch fans. Like the fan modules, the power supplies are
available in models with either front-to-back or back-to-front cooling airflow.
Caution
Air must flow in the same direction for all installed fan modules and power supplies in a X670-
G2 series switch.
X670-G2 switches oer Boundary Clock (BC), Transparent Clock (TC), and Ordinary Clock (OC) for
synchronizing phase and frequency and allowing the network and the connected devices to be
synchronized over Ethernet connections. Precision is +-2 nanoseconds (ns) with time accuracy +50 to
-65 ns.
X670-G2 series switches require ExtremeXOS version 15.6.1.4 or later, or version 21.1.1 or later.
Note
See the ExtremeXOS 22.6 User Guide and the ExtremeXOS 22.6 Command Reference Guide
for feature-specific information about the switches and for information regarding switch
configuration.
ExtremeSwitching X670-G2-48x-4q Switch Ports and Slots
X670-G2-48x-4q switch ports and slots include:
ExtremeSwitching Switches
ExtremeSwitching and Summit Switches: Hardware Installation Guide 71