As per my knowledge eNodeB query to a DNS with the TAI FQDN, but where eNodeB send that TAI FQDN?
Is there a list into eNodeB with the MMEI? Where is the DNS? How eNodeB query it?
Any example would be helpful?
How PGW selection in roaming scenario impacts network performance ?
I have seen many wireshark logs and found mainly two types of attach request, one is known as "EPS attach" and another one is known as "Combined attached". I want to know, how does UE nas layer decide on "attach type" in attach request ?