Installation Guide

•
For SummitStack-V320 stacking, use ports 49, 53, 57, and 61.
X670-G2-72x switches support do not support native stacking.
Alternate Stacking for X670-G2 Switches
Table 71 summarizes alternate stacking support for X670-G2 switches.
Table 71: Alternate Stacking Ports for X670-G2 Switches
Switch Model Type or location of Native
Stacking Ports
Alternate Stacking
Ports
Location of Alternate
Stacking Ports
X670-G2-48x-4q Ports 49,53,57,61 47,48 Front panel
X670-G2-72x None 71,72 Front panel
Note
•
On X670-G2-48x-4q switches, ports 47 and 48 are not available as data ports when the
alternate stacking ports are used.
•
On X670-G2-72x switches, ports 71 and 72 are not available as data ports when the
alternate stacking ports are used.
Additional Stacking Considerations for X670-G2 Switches
Before deploying a new stack with X670-G2 switches, consider the following guidelines:
•
In a stack that contains X670-G2 switches and other switch models, the X670-G2 switch might
provide more memory and more features than the other switch models. Take this into account when
you decide which switches will serve as the master and backup nodes, and when you configure
failover operation.
•
To use the failover feature in the stack, a second X670-G2 switch is recommended. It must be the
backup node.
•
Only the master and master-capable nodes require a license to support special features such as
MPLS.
•
If the MPLS feature pack is installed on the master-capable nodes, the following guidelines apply:
•
Every switch in the stack must meet the software and hardware requirements listed in the
Feature License Requirements document.
•
Every node that shares a stack with an X450-G2 switch must have enhanced stacking configured.
•
We recommend against mixing X450-G2, X460-G2, X770, and X670-G2 switches in a stack.
•
The X670-G2-48x-4q switch supports the LR4 Parallel Single Mode (PSM) optical transceiver on
40G optical QSFP+ ports.
X690 Stacking
X690 series switches can be stacked with other X690 switches, with X590 switches, X695 switches, and
with X870 switches. They support native stacking using front-panel data ports 61 and 69.
Note
The front-panel ports used for stacking on the X690 switch are located side by side, rather
than above and below as on most other switch models.
Building Stacks
ExtremeSwitching and Summit Switches: Hardware Installation Guide 159