| 1 |
comparison between CSMA/CD and Demand Priority:
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CSMA/CD: try to send whenever there is data
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Demand Priority: only send when it is O.K. to do so; a station demands of the hub the permission to send and indicates the priority; hub services higher priority first.
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| 2 |
topology: cascade to 3 levels of hubs (total network span=1200m)
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| 3 |
hardware: NICs PCI-VG10/100, EISA-VG10/100 , ISA-VG10/100 with 2 RJ45 (one for ethernet, one for VG); VG-HUB with RJ45 VG ports, HUB with ethernet-to-100VG Bridge
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| 4 |
vendor: Ragula Systems, Cisco, Cabletron, Hewlett Packard, etc
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