Solved: how to connect two switches

rdrisaldi · ‎03-06-2012

I have to switches one in L3 an the other in L2. Several vlans on the network.

Should i use a trunk connection between them or a etherchannel o port channel?

what is the best way and when to use this options?

thanks in advance for your answer.

Samuel Petrescu · ‎03-07-2012

Yes,
If you have only one interface for uplink, you need to configure it as a trunk (If you have multiple VLAN’s in your environment).

Something like this (is a minimal config):

!
interface GigabitEthernet1/0/24
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 10,20,30,40,50
switchport mode trunk
!

Samuel Petrescu