Making Connections 19
network segments then it would be under the rule of
Fast Ethernet Standards in those Dual Speed
Ethernet products that you used now.
♦ If there is a path between any two end-stations containing
five segments and four repeaters, then at least two of the
cable segments must be point-to-point link segments (e.g.,
10BASE-T or 10BASE-FL), while the remaining segments
may be populated (mixing) segments (e.g., 10BASE-2 or
10BASE-5).
Fast Ethernet (100Mbps) networks have the following connectivity rules:
♦ The maximum length of a twisted-pair segment (that is, the
distance between a port in the hub to a single-address net-
work device such as a PC, server, or Ethernet switch) is 100
meters. Cabling and other wiring should be certified as
Category 5 UTP or shielded twisted-pair (STP).
♦ The maximum diameter in a collision domain is about 205
meters using two Class II hubs (or hub stacks).
♦ Between any two end-stations in a collision domain, there
may be up to three cable segments and two Class II hubs or
hub stacks.
Hub to End-Station Connection
After installing the hub properly, it can support up to 32 ports, 24
ports or 16 ports end-station connections. Fast Ethernet connections require either a Category 5 UTP cable or a STP cable. These
cables can be up to 100 meters long.