System specifications
The following table lists the RackSwitch G8272 system specifications.
Note: The supported hardware options and software features listed in this product guide are based on the
Lenovo Cloud Networking Operating System (CNOS) version 10.4.2 or Lenovo Enterprise Networking
Operating System (ENOS) version 8.4.4. For details about specific software releases that introduced
support for certain hardware options and software features, refer to the Change history of the particular
software release that can be found at:
http://datacentersupport.lenovo.com/us/en/products/networking/rackswitch/switch-
G8272/7159/downloads
Table 2. System specifications
Component
Specification
Form factor
1U rack mount
Ports
48x SFP/SFP+ ports
6x QSFP+ ports
Media types
40 Gb Ethernet QSFP+:
40 GbE short-range (SR) QSFP+ bi-directional (BiDi) transceivers
40 GbE short-range (SR4/iSR4/eSR4) QSFP+ transceivers
40 GbE long-range (LR4) QSFP+ transceivers
40 GbE QSFP+ to QSFP+ active optical cables (AOCs)
40 GbE QSFP+ to 4x 10 GbE SFP+ active optical breakout cables
40 GbE QSFP+ to QSFP+ direct attach copper (DAC) cables
40 GbE QSFP+ to 4x 10 GbE SFP+ DAC breakout cables
10 Gb Ethernet SFP+:
10 GbE short-range (SR) SFP+ transceivers
10 GbE long-range (LR) SFP+ transceivers
10 GbE extended-range (ER) SFP+ transceivers
10 GbE RJ-45 SFP+ transceivers
10 GbE SFP+ active optical cables
10 GbE SFP+ DAC cables
1/10 Gb Ethernet SFP+:
1/10 GbE SX/SR SFP+ transceivers
1 Gb Ethernet SFP:
1 GbE short-wavelength (SX) SFP transceivers
1 GbE long-wavelength (LX) SFP transceivers
1 GbE RJ-45 SFP transceivers
Port speeds
40 GbE QSFP+ SR BiDi/SR4/LR4 transceivers: 40 GbE
40 GbE QSFP+ iSR4/eSR4 transceivers, DAC cables and AOCs: 40 GbE or 4x 10 GbE
10 GbE SFP+ transceivers, DAC cables and AOCs: 10 Gbps
1/10 GbE SFP+ transceivers: 1 Gbps or 10 Gbps
1 GbE SFP transceivers: 1 Gbps
Switching
method
Cut-through.
Data traffic
types
Unicast, multicast, broadcast.
Lenovo RackSwitch G8272
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