User`s guide

FX-16NW

another link in the same segment.

STP was developed as a countermeasure against loops generated in bridged

or switched networks. Whenever a loop arises, STP disables links in the

order of priority starting with those with the lowest priority. (Priority of

each link is assigned by a network administrator.) If you are also using

multiport devices such as Ethernet switches that utilize VLAN, please

another switch in the direction opposite to (away from) the root switch.

■ An Example of Redundant Path

It is recommended to have a redundant path ready as an insurance against

any accident on the main path. In the example illustrated in Figure C-3, the

main link to the e-mail server is disabled by an accident. However, access

to the e-mail server is secured if a redundant path is available. Even in this

situation, STP finds out the necessary connections and check whether all the

links on a network are up. Whenever any of the links fails, STP enables

Figure C-2

Figure C-3