[Samba] what is the meaning of number in "make_connection_snum()" ?

[a.sanacori at amm.unibs.it]

I would like to know the meaning of the number 648 in string 
"make_connection_snum" and the number 836 in the "service.c:close_cnum".

Many thanks.

[2008/04/02 18:13:31, 1] smbd/service.c:close_cnum(836)
  192.168.16.51 (192.168.16.51) closed connection to service storage
[2008/04/03 08:44:14, 1] smbd/service.c:make_connection_snum(648)
  192.168.16.51 (192.168.16.51) connect to service storage initially as 
user tomcat (uid=500, gid=500) (pid 25534)

Antonino Sanacori