Planning a Switched Network
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893-878-B
This concept is important for the Model 58000 switch, because the traffic is
actually switched, not routed. Routers do not forward broadcast or multicast
frames across their ports; however, Model 58000 switches forward broadcast and
multicast packets across their ports within the same or “source” virtual LAN.
The resulting increase in network performance that switching offers can be
applied to networks in various ways; however, you should understand certain
switching concepts before you install the Model 58000 switch into your
network. The most significant concept related to Model 58000 switches has to
do with the address tables resident within each switch and the number of
allowable MAC addresses that can be stored and shared within those tables
within the switched network.
Address Tables in a Single Model 58000 Switch
All Model 58000 switch ports are factory configured as part of a single virtual
LAN, and the switch has the capability to store 1024 MAC addresses on that
virtual LAN. As additional virtual LANs are created (using Optivity), each new
virtual LAN is allotted memory to store an additional 1024 MAC addresses.
shows multiple virtual LANs within a single Model 58000 switch.
893-878-B Book Page 12 Monday, May 12, 1997 2:06 PM
Summary of Contents for 58000
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