Hello ..:-)
The v$sqltext comes from (global view) gv$sqltext comes from oracle kernel X$kglna
The v$sql comes from gv$sql comes from x$kglcursor...
So, the x$kglna meens the Kernel-Generic-Layer-Network-Access
The X$kglcursor is the Kernel-Generic-Layer-Cursor...
The 1' keeps information about the network in your db (so what is going on in that moment)
The 2' is a gather-user dependent (what is+was going on)