The stacking-support option is enabled by default for X450-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 X450-G2 switches. For more information, see Selecting Native and Alternate Stacking Ports.
|Stacking Method||Speed per Link (HDX)||Cable Type and Lengths|
Uses rear panel dedicated 21 Gb stacking ports
Available only in stacks of X450-G2 switches running the same version of ExtremeXOS
|21 Gbps||0.5m, 1.0m, 3.0m. 5.0m |
QSFP+ passive copper cable
(Front panel 10G models)
|10 Gbps||0.5m–40km |
Native Stacking for X450-G2 Switches
For native stacking with the X450-G2 switch, use the two fixed 21 Gb QSFP+ stacking ports on the rear of the switch, as shown in X450-G2 Switch: Native Stacking Ports. These stacking ports provide SummitStack-V84 stacking and can be stacked natively only with other X450-G2 switches.
SummitStack-V84 connections require direct-connect QSFP+ copper cables.
The X450-G2 is the only Extreme Networks switch that supports SummitStack-V84.
|1 = 21 Gb QSFP+ stacking ports||2 = Grounding lug|
Alternate Stacking for X450-G2 Switches
Alternate stacking (SummitStack-V) is supported for the X450-G2 10GE4 switch models, as summarized in Alternate Stacking Ports for X450-G2 Switches. Use the front-panel 10G ports for alternate stacking.
|Switch Model||Type or location of Native Stacking Ports||Alternate Stacking Ports||Location of Alternate Stacking Ports|
|Fixed (rear panel)||27,28||Front panel|
|Fixed (rear panel)||51,52||Front panel|
Additional Stacking Considerations for X450-G2 switches
- Only the SummitStack-V and SummitStack-V84 stacking protocols are supported for the X450-G2 switch. SummitStack-V80 is not supported.
- In a stack that contains X450-G2 switches and other switch models, the X450-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 X450-G2 switch is recommended. It must be the backup node.
- If any supported feature pack is
installed on the master-capable X450-G2 nodes, the following guidelines apply:
- Every switch in the stack must meet the software and hardware requirements listed in the Feature License Requirements document.
- Only the enhanced stacking protocol is supported for the X450-G2 switch. Every node that shares a stack with an X450-G2 switch must have enhanced stacking configured.
- We recommend against mixing X450-G2, X460-G2, and X670-G2 switches in a stack.
- X450-G2 switches support multiple types of QSFP+ stacking cables for connection between rear stacking ports (21 Gb ports) and QSFP+ ports on other Extreme Networks switches. For information on which cables to use with each type of Summit family switch, see Selecting Stacking Cables.