On Aix 5.2 on RS/6000 ( powerpc-ibm-aix5.2.0.0 )

# pyrperl ./pack.pl         
Byte order:   4321
Hex: 01020304  is  Dec:  16909060
Dec: 16909060  is  'N': '01020304'  as Network or Big-endian
Dec: 16909060  is  'V': '04030201'  as Vax or Little-endian
Dec: 16909060  is  'L': '01020304'  as native format

On Debian Linux on 64bit AMD ( Debian 4.4.5-8 )

# pyrperl ./pack.pl
Byte order:   1234
Hex: 01020304  is  Dec:  16909060
Dec: 16909060  is  'N': '01020304'  as Network or Big-endian
Dec: 16909060  is  'V': '04030201'  as Vax or Little-endian
Dec: 16909060  is  'L': '04030201'  as native format