产品规格：
    5 Gbps firewall throughput(App-ID enabled¹)
    2 Gbps threat prevention throughput
    2 Gbps IPSec VPN throughput
    1,000,000 max sessions
    120,000 new sessions per second
    2,000 IPSec VPN tunnels/tunnel interfaces
    5,000 SSL VPN Users
    20 virtual routers
    10/20 virtual systems (base/max²)
    80 security zones
    10,000 max number of policies