define host {
    use         generic-host
    host_name   BB11
    alias       Backbone Switch
    address     10.1.255.4
}

define host {
    use         generic-host
    host_name   BB21
    alias       Backbone Switch
    address     10.2.255.4
}

define host {
    use         generic-host
    host_name   BB31
    alias       Backbone Switch
    address     10.3.255.4
}

define host {
    use         generic-host
    host_name   BB41
    alias       Backbone Switch
    address     10.4.255.4
}

define host {
    use         generic-host
    host_name   BB12
    alias       Backbone Switch
    address     10.1.255.5
}
define host {
    use         generic-host
    host_name   BB22
    alias       Backbone Switch
    address     10.2.255.5
}
define host {
    use         generic-host
    host_name   BB32
    alias       Backbone Switch
    address     10.3.255.5
}
define host {
    use         generic-host
    host_name   BB42
    alias       Backbone Switch
    address     10.4.255.5
}

define host {
    use         generic-host
    host_name   SW11
    alias       Acces Switch
    address     10.1.255.6
}

define host {
    use         generic-host
    host_name   SW21
    alias       Acces Switch
    address     10.2.255.6
}
define host {
    use         generic-host
    host_name   SW31
    alias       Acces Switch
    address     10.3.255.6
}
define host {
    use         generic-host
    host_name   SW41
    alias       Acces Switch
    address     10.4.255.6
}
define host {
    use         generic-host
    host_name   SW12
    alias       Access Switch
    address     10.1.255.7
}

define host {
    use         generic-host
    host_name   SW22
    alias       Access Switch
    address     10.2.255.7
}

define host {
    use         generic-host
    host_name   SW32
    alias       Access Switch
    address     10.3.255.7
}

define host {
    use         generic-host
    host_name   SW42
    alias       Access Switch
    address     10.4.255.7
}