The IPSec VPN live log does contain the connection name

2011:02:11-14:15:30 HOSTNAME-1 pluto[xyz]: "S_ABC_VPN" #[number]: initiating Quick Mode.....

but view "view log file" you only get

2011:02:11-14:15:30 HOSTNAME-1 pluto[xyz]: "S_REF_jYhIsAnhzG_3" #[number]: initiating Quick Mode.....

so you have to lookup the REF yourself AND it is much less "readable" as the connection name itself in the log file.

I suggest, that the connection name is also contained in the "plain" ipsec vpn logfile, and not only displayed in the live log.