X670-G2 Stacking
The stacking-support option is enabled by default for X670-G2 switches. For
more information, see Enabling and Disabling the Stacking-Support Option.
The stacking port selection option, which allows you to choose between
native and alternate ports, is enabled by default for X670-G2 switches. For more information, see
Selecting Native and Alternate Stacking Ports.
Table 1. Stacking Methods for X670-G2 Switches
Stacking Method |
Speed per Link (HDX) |
Cable Type and Lengths |
SummitStack-V all
X670-G2 switch models
|
10 Gbps |
SFP+ to SFP+ |
SummitStack-V80 (supported in EXOS 30.1 and prior releases
only) model 48x-4q only
|
20 Gbps |
QSFP+ to QSFP+ |
SummitStack-V160 model 48x-4q only
|
40 Gbps |
QSFP+ to QSFP+ |
SummitStack-V320 model 48x-4q only
|
80 Gbps
|
QSFP+ to QSFP+ |
Native Stacking for X670-G2 Switches
For X670-G2 native stacking, use the 4 x 40 Gb interfaces that are fixed
on the front of the switch. Use any Extreme
Networks
certified 40G QSFP+ cable or optical transceiver to make the connections among the switches to
be stacked.
For a complete listing of compatible cables and optical transceivers, see the Extreme
Hardware/Software Compatibility and Recommendation
Matrices.
X670-G2-48x-4q switches support native stacking using V160 and V320.
- For SummitStack-V160 stacking, use ports 57
and 61.
- 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
Alternate Stacking Ports for X670-G2 Switches
summarizes alternate stacking support for X670-G2 switches.
Table 2. 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.
1 Combined over paired
ports