Creating Trunk Links - Bay Networks 58000 Installation And Reference Manual

Planning a Switched Network

Creating Trunk Links

2-38
For more information about connecting Model 58000 switches together, see
Connecting Model 58000 Switches Together
Network."
The Model 58000 switch recognizes all connections to other Model 58000
switches (through "Auto" mode ports) as trunk links. These links can exist
between MDA 100 Mb/s ports provided that the proper cables are attached.
Although it is physically possible to configure 10 Mb/s point-to-point
connections between any two Model 58000 switches, this configuration is not
supported. This type of configuration can introduce instabilities in the network.
For more information, see
Table 2-2 describes the possible port configurations and operating modes of
Model 58000 switch ports (built-in 10BASE-T ports and 100BASE-T MDA
ports).
Table 2-2. Port configurations and operating mode
MDA or Default operating mode Configuration options
built-in port
10BASE-T Default mode = 10 Mb/s
built-in port half-duplex
100BASE-FX Default mode = 100 Mb/s
MDA port half-duplex; flow control
enabled
100BASE-TX Default mode = 100 Mb/s
MDA port half-duplex; flow control
enabled
in Chapter 5, "Connecting to the
Link Speeds earlier in this chapter.
Configurable to operate at 10 Mb/s
full-duplex mode. If the port is not
connected to the backplane, it can
operate in half- or full-duplex. (Ports 1–12
can be configured only for half-duplex
when connected to System 5000
backplane.)
Configurable to operate at 100 Mb/s
full-duplex. Flow control can be disabled
as a configuration option.
Configurable to operate at 100 Mb/s
full-duplex. Flow control can be disabled
as a configuration option.
893-878-B