Milan Technology MIL-S1000 - Manual (Page 27)

Figure 2-3. MIL-S1000 100/1000 Hub in a collapsed backbone
link
Fileserver Link
100Base Solution
With a fileserver link, you can increase file server
performance by increasing the Hub's bandwidth between
one or more fileservers and the workgroups they serve.
If you connect 10Mbps workgroup hubs to the 10Mbps
ports on the MIL-S1000, traffic in one workgroup will not
interfere with the performance of another workgroup.