I am looking forward to a 4-Byte Implementation, Can you please let me know the pre requisites for this new implementation.
A.) Currenly in use of the service provider IP and ASN ,
B.) In case of 4 byte ASN will the interoperablity be there with the 2 byte ASN also.
If you are interested in mechanics of 4B ASNs and 2B/4B transition/compatibility, check out the following documents: