As a follow on the my requirement of reading the detail file and updating them into MSSQL database, I have written a program to parse the content of the file, which is produced by ***ONE*** single Cisco box sending data to free radius 1.04, and this is what I noticed, I need someone to tell me if this is an expected behaviour or somewhere there is something wrong :- My observations :- 1. The number attributes in a records ( ie the number of lines in a "record" ) is not consistent. I have skipped those Cisco-AVPair in the files, and this is the stats :- acount=25, value=0 acount=26, value=0 acount=27, value=0 acount=28, value=0 acount=29, value=14 acount=30, value=16 acount=31, value=7290 acount=32, value=6724 acount=33, value=0 acount=34, value=0 acount=35, value=0 In other words, in my detail file, there are 14 records which have 29 attributes, 16 records with 30 attributes, 7290 records which have 31 attributes and 6724 records with 32 attributes. Question is why don't they have the same number of attributes ? 2. Not only that, the occurances of the attributes are not consistent either :- attrib=Acct-Authentic, occurance=14043 attrib=Acct-Delay-Time, occurance=14043 attrib=Acct-Input-Octets, occurance=14043 attrib=Acct-Input-Packets, occurance=14043 attrib=Acct-Output-Octets, occurance=14043 attrib=Acct-Output-Packets, occurance=14043 attrib=Acct-Session-Time, occurance=14043 attrib=Acct-Status-Type, occurance=14043 attrib=Acct-Unique-Session-Id, occurance=14055 attrib=Called-Station-Id, occurance=14043 attrib=Calling-Station-Id, occurance=14013 attrib=Cisco-NAS-Port, occurance=6194 attrib=Client-IP-Address, occurance=14045 attrib=NAS-IP-Address, occurance=14043 attrib=NAS-Port, occurance=6194 attrib=NAS-Port-Type, occurance=6194 attrib=Service-Type, occurance=14043 attrib=Timestamp, occurance=21349 attrib=User-Name, occurance=14013 attrib=gw-final-xlated-cdn, occurance=545 attrib=gw-rxd-cdn, occurance=14043 attrib=h323-call-origin, occurance=14043 attrib=h323-call-type, occurance=14043 attrib=h323-conf-id, occurance=14043 attrib=h323-connect-time, occurance=14043 attrib=h323-disconnect-cause, occurance=14043 attrib=h323-disconnect-time, occurance=14043 attrib=h323-gw-id, occurance=14043 attrib=h323-incoming-conf-id, occurance=14043 attrib=h323-remote-address, occurance=7849 attrib=h323-setup-time, occurance=14043 attrib=h323-voice-quality, occurance=14043 attrib=session-protocol, occurance=7849 attrib=subscriber, occurance=14043 Take for example, why Cisco NAS port has such low occurances in the detail file ? Similarly why h323-remote-address has such a low occurances ? Is it a Cisco thingy or free radius did not parse what Cisco sent correctly ? Appreciate any help or comments.