Corrected but no luck unforunately.
I can't ping the interface from the switch itself either. 
Updated conf:
}
}
me0 {
unit 0 {
family inet {
address 10.255.254.1/17;
}
}
}
vlan {
unit 10 {
family inet {
address 10.255.127.230/32;
}
}
vlans {
mgmt {
vlan-id 10;
l3-interface vlan.10;
}
vlan-guest {
vlan-id 4001;
}
vlan-temp {
vlan-id 4000;
}