C H A P T E R 1 | Intel Express 100BASE- TX Stackable Hub |
The cascade cable extends the functionality of one hub to a maximum of six hubs in a stack. This stack then functions as a single repeater or collision domain. The cascade cable daisy chain creates a cascade bus that carries the following information to each hub in the stack:
∙Multidrop repeater Ethernet segment information—allows you to have a total of 72 fixed ports on one segment. When the optional 100BASE-T host module is installed in the expansion slot on each hub, the Ethernet segment supports up to 144 ports.
∙Stack management information—allows one NMM to manage every hub in the stack.
∙Port statistics—distributes configuration and status information for each port in the stack to an NMM and network management system.
∙Daisy chain unit number information—provides a sequential numbering convention for a stack of up to six hubs. For information about the unit numbering convention, see “Unit Numbering Convention” in Chapter 3, “Physical Configuration Guidelines.”
