FBFM2112F897CSLJLS View Datasheet(PDF) - Intel

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FBFM2112F897CSLJLS

Intel® FM2112 24-Port 10G/1G Ethernet Switch Chip

Intel 

Intel® FM2112 24-Port 10G/1G Ethernet Switch Chip Data Sheet

characteristics of the FM2112 allow congestion-free, low-latency

switching for the high performance data center. Four or more 10G ports

can be used for inter-switch links (ISL's) or for high capacity uplinks.

1.2.3

Figure 2.

Stackable Gigabit Ethernet Switch

2.5 Gigabit Backplane Upgrade

Bladed compute systems require low latency, high bandwidth

backplane connectivity between server and switch blades. A key

feature of bladed systems is a high degree of scalability, most often

achieved by out-scaling - increasing computational power via the

addition of compute resources. Up-scaling involves increasing the

throughput of each component and is generally less attractive because

of the requirement for the switches and backplane to operate at higher

data rates. The FM2112 facilitates up-scaling of 1Gbps systems by

providing switching and SerDes operation at 2.5Gbps over the same

backplane traces used for 1Gbps systems. In addition, up to 8 10Gbps

ports afford plenty of throughput for uplinks or internal high bandwidth

fabric ports.

This example shows a series of bladed servers serviced by a pair of

FM2112 switches where 20 1Gbps/2.5Gbps ports are used for

interconnect, including ISL's, and 4 10Gbps ports for uplinks. The

system can run at 1Gbps across the backplane or 2.5Gbps by changing

only the server blades.

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