Cisco SF350 vlans management

[flvctin]

Hi guys. I have this configuration, as shown in the image below:

 I want to connect two cisco routers through two cisco sf350 switches using vlans. Previously, these routers were connected through an utp cable.

Fa0/1 interface on both switches is set as

switchport mode acces
switchport acces vlan 10

and Gi1 interface 

switchport mode trunk
switchport allowed vlan add 10

but this dont work. I am confused by tagged and untagged switchport modes, switchport general, switchport customer.

 I was advised to use Q-in-Q to transport that vlan 3 with my vlan 10 acces ports, but this switch uses a different software and I dont know how to configure that. Could you help me? Thanks.

[balaji.bandi]

Not sure what is the Goal here? and you have not shared the configuration of the router?

if you looking only Q-in-Q config below for reference :

https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-350-series-managed-switches/smb5827-configure-vlan-interface-settings-on-a-sx350-sg350x-or-sx550.html

[flvctin]

Hi. My goal is to have connection(ping) from one router to the other one. I dont have acces on routers config. I only know ports, ip and that there is a vlan 3 between them.