how to create extended vlans in gns3

[Cisco2012]

how can i create extended vlans in gns3 i tried a lot but it fails

[BENDAOUD7]

you must use the vlan database configuration mode
refer to the gns3.net
Mr mustapha has a very good video trainings try to them and pray for him
https://amnetwork.blogspot.com/
https://arabhardware.net/forum/showthread.php?t=177270

and the last link is the project of our friend ayman alnaimi and adel el hamidi for the cisco labs

https://arabhardware.net/forum/showthread.php?t=270879

good luck inshallah