Cisco routers provide some special configuration options for serial interfaces. Those do not apply to Ethernet switches, neither for Cisco's nor for Extreme's. You cannot blindly copy a router configuration to a switch.
Based on the output you provided it looks like you are trying to create 3 vlans with vids of 101, 102 and 103. You would like them all to have loopback enabled. If this is true here are the commands below:
create vlan one tag 101
create vlan two tag 102
create vlan three tag 103
configure vlan one ipaddress 192.168.1.1/24
enable loopback vlan one
each vlan has to have its own ip address in a different subnet, like so:
configure vlan two ipaddress 192.168.2.1/24
configure vlan three ipaddress 192.168.3.1/24
Then you can enable loopback on those as well
enable loopback vlan two
enable loopback vlan three
Please let me know if this is what you are looking for.