Practical Network Scanning

Firewall performance

The performance of a firewall is tested under different traffic loads when considering different metrics to evaluate the firewall performance. The metrics are as follows:

• Throughput: This is the actual payload that is received per unit of time
• Delay: This is the transit time for a packet to be transmitted from the source to the destination
• Jitter: This measures the variation in delay of the received packets
• Packet-loss-rate (PLR): This is the ratio of the lost packets to the total transmitted packets

If you're upgrading your firewall or buying a new next-generation firewall, how do you select one that's appropriate for your business? Vendors will always tell you how great their firewall product is and downplay others, so ...