[7.075] sc_servers_callback? [NOTABUG]

Saw these lines in my http proxy live log, wasn't sure what it was doing, so thought I should post it here. Looks like it is determining the quickest  server by access time?

2007:11:11-16:11:42 (none) httpproxy[4235]: id="0003" severity="info" sys="SecureWeb" sub="http" request="(nil)" function="sc_servers_callback" file="scr_scanner.c" line="809" message="server 'cffs07.astaro.com' access time: 317" 
2007:11:11-16:11:42 (none) httpproxy[4235]: id="0003" severity="info" sys="SecureWeb" sub="http" request="(nil)" function="sc_servers_callback" file="scr_scanner.c" line="809" message="server 'cffs06.astaro.com' access time: 519" 
2007:11:11-16:11:42 (none) httpproxy[4235]: id="0003" severity="info" sys="SecureWeb" sub="http" request="(nil)" function="sc_servers_callback" file="scr_scanner.c" line="809" message="server 'cffs04.astaro.com' access time: 949" 
2007:11:11-16:11:42 (none) httpproxy[4235]: id="0003" severity="info" sys="SecureWeb" sub="http" request="(nil)" function="sc_servers_callback" file="scr_scanner.c" line="809" message="server 'cffs08.astaro.com' access time: 550" 
2007:11:11-16:11:45 (none) httpproxy[4235]: id="0003" severity="info" sys="SecureWeb" sub="http" request="(nil)" function="sc_servers_callback" file="scr_scanner.c" line="809" message="server 'cffs05.astaro.com' access time: 3707"