Installation Guide

On X440-G2 switches, SummitStack-V is compatible with X450-G2 and X460-G2 switches with 10 Gb
uplinks and with X620, and X670-G2 switches running the same version of ExtremeXOS. SummitStack-
V enabled 10 GbE ports must be physically direct-connected.
Note
The SFP+ stacking ports on the base X440-G2 switches are 1 Gb Ethernet ports, not 10 Gb
Ethernet ports. The switches run a 10 Gb stacking protocol by default, but they do not run the
10 Gb Ethernet protocol without licensed entitlement. Two- and four-port licenses are
available to enable the ports to run the 10 Gb Ethernet protocol.
Note
SummitStack-V is not supported on the following extended temperature range switch
models:
• X440-G2-12t8fx-GE4
• X440-G2-24fx-GE4
• X440-G2-24t-GE4
Operating Temperatures
Most X440-G2 switch models support an operating range from 0°C to 50°C. The following models
extend the operating range from 0°C to 60°C:
• X440-G2-12t8fx-GE4
• X440-G2-24fx-GE4
• X440-G2-24t-GE4
Additional Features
For all models, a serial console port on the front panel 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 configurations.
The rear panel provides an AC power input socket or DC input connector, along with a redundant power
connector. The switch automatically adjusts to the supply voltage. The redundant power connector
allows you to connect the switch to either a standalone external redundant power supply or the EPS-C2
external power system. When a compatible external power supply is used with the ExtremeSwitching
X440-G2 switch, the internal and external power supplies are fully fault tolerant. If one power supply
fails, the other power supply will provide sucient power to operate the switch.
All X440-G2 switches support external redundant power options. For details, refer to Table 38 on page
120.
Note
See the ExtremeXOS 30.7 User Guide and the ExtremeXOS 30.7 Command Reference Guide
for feature-specific information about the switches and for information regarding switch
configuration.
Operating Temperatures ExtremeSwitching Switches
32 ExtremeSwitching Hardware Installation Guide