Extreme Networks Summit X150 Series Hardware Installation Manual page 144

Figure 128: VIM1-SummitStack512 Versatile Interface Module
VIM1-SummitStack256 Versatile Interface Module
The VIM1-SummitStack256 versatile interface module provides two 128-Gbps SummitStack stacking
ports.
To connect these ports, you must use stacking cables with compatible connectors, available from
Extreme Networks.
The VIM1-SummitStack256 module requires ExtremeXOS 12.4.1 software (or later) installed on the
Summit X650 series switch.
Figure 129: VIM1-SummitStack256 Versatile Interface Module
VIM3-40G4X Versatile Interface Module
The VIM3-40G4X versatile interface module provides four unpopulated cages for QSFP+ optical
modules or QSFP+ compatible direct-attach active or passive cables.
Ports S3 and S4 can be enabled as native stacking ports for the Summit X650 series switch.
Each physical port can be configured to operate as a single 40-Gbps port or as four 10-Gbps ports.
When the port operates in 40-Gbps mode, you can connect the port using either a QSFP+ direct-attach
cable or an installed QSFP+ module and compatible fiber optic cable. When the port is configured to
operate in 10-Gbps mode, you must connect it using a special 1-to-4 breakout fiber optic cable.
The VIM3-40G4X module requires ExtremeXOS 12.6.1 software (or later) installed on the Summit X650
series switch.
Summit Family Hardware Installation Guide
Summit Option Cards and Versatile Interface Modules
144