vlan and trunk

[dav9]

#155273

hi all

i have some questions about configuring vlan.

i have an existing environment. no vlan is set.

can i configure vlan for a special purpose,
while the main network still work without vlan config for it?
then can i route between those two networks?

also
if i have i 2 switches with 2 vlan config on them
can i use only one cable to connect those 2 swithces?
or should i have a cable per vlan?
(i am not intend to use a backbone config)

my confusion is,
in each switch there should be a trunk setting
but those this setting, which is configure on the port
should be also connected? using a cable?

if so, then i am confused
since, if i need to use a different cables,
then it not so far from using a different segments

thanks

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