If you can answer the following questions, i can run it through the official sizing tool. But be warned, for a 40Mbit connection, it would probably recommend some SERIOUS sized boxes. But again, depends on what you turn on. FGT60 is for small offices really. You could probably reduce the current load on your box by doing some tuning. Like adding an RDP rule at the top with no profile, so that traffic literally just passes through.
Answers Needed for sizing;
What is the max number of concurrent Firewall users? YES/NO
Do you plan to utilize IPsec VPN? YES/NO
Do you plan to utilize Antivirus, antispam and/or Web Filtering? YES/NO
Do you plan to utilize IPS? YES/NO
What speed is your external link? 40Mb?
What is your average utilization of your link? 10%/20%/30%/40%/50% ... etc
Answer below, where the overall total should add up to be 100%
What % of your traffic is HTTP?
What % of your traffic is SMTP/IMAP?
What % of your traffic is FTP?
What % of your traffic is POP3?
What % of your traffic is other traffic?
UK Based Technical Consultant
FCSE v2.5
FCSE v2.8
FCNSP v3
Specialising in Systems, Apps, SAN Storage and Networks, with over 25 Yrs IT experience.