Lenovo RackSwitch G7028 Product Manual - Page 2
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Key features
The RackSwitch G7028 switch is considered particularly suited for the following customers:
Customers who want to use GbE in their infrastructure (servers and networking)
Customers who are implementing a virtualized environment and require multiple GbE ports
Customers who require investment protection for 10 GbE ports
Customers who want to reduce total cost of ownership (TCO) and improve performance while
maintaining high levels of availability and security
Customers who want to avoid or minimize oversubscription, which can result in congestion and
loss of performance
Customers who want to implement a converged infrastructure with NAS or iSCSI
The G7028 switch offers the following key features and benefits:
Increases network performance
The RackSwitch G7028 provides up to 128 Gbps of switching throughput, supports four SFP+ 10
Gb uplink ports for zero oversubscription, and has a port to port latency of 3.3 microseconds.
Lower power and exceptional cooling
The RackSwitch G7028 typically uses only 45 W of power. Unlike side-cooled switches, which can
cause heat recirculation and reliability concerns, the RackSwitch G7028 switch's rear-to-front
cooling design reduces data center air conditioning costs by matching airflow to the server's
configuration in the rack.
Fault tolerance
These switches learn alternative paths automatically and perform faster convergence if there is a
link, switch, or power failure. The switch uses technologies, such as Virtual Link Aggregation, L2
trunk failover, and Hot Links.
Seamless interoperability
RackSwitch switches interoperate seamlessly with other vendors' upstream switches.
The RackSwitch G7028 supports an optional external redundant power supply with the Lenovo
RackSwitch G7000 Redundant Power Supply (RPS) option that is shown in the following figure.
Figure 2. Lenovo RackSwitch G7000 Redundant Power Supply
The G7000 RPS option has the following features:
Form factor: 1U rack mount
Power connections: Four DC connections in the rear of the rack to connect to the G7028 and
G7052 switches; one AC inlet connector to connect to the power source (rack PDU or wall
connector)
Airflow: Rear-to-front cooling
Power: Approximately 55 - 276 W, which varies depending upon operating conditions and number
and types of switches connected
Rack installation: Generic rack-mount kit (2-post); optional flexible 4-post mounting option for the
server rack and the communications rack
LEDs: System LEDs to indicate status
Lenovo RackSwitch G7028
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