ZyXEL ZyWALL USG 2000 User Guide - Page 39

Chapter 1 Introducing the ZyWALL 1.3.2 Maximizing Throughput The ZyWALL has one internal bus for ports P1-P7 and another for port P8. To maximize the ZyWALL's throughput, use P8 for your connection with the most traffic. Figure 10 Gigabit Interfaces and Internal Buses The ZyWALL has a slot for adding an optional Security Extension Module (SEM) to enhance the ZyWALL's VPN and /or Unified Threat Management (UTM) capabilities. Figure 11 SEM • The VPN module (SEM-VPN) increases the maximum VPN throughput from 100 Mbps to 500 Mbps, the maximum number of IPSec VPN tunnels from 1,000 to 2,000 and the maximum number of SSL VPN users from 250 (with a license) to 750 (with a license). • The UTM module (SEM-UTM) increases the maximum anti-virus and IDP traffic throughput from 100 Mbps to 400 Mbps. • The SEM-DUAL module provides the performance enhancements of both the VPN and UTM modules. 1.3.3 Front Panel LEDs The following table describes the LEDs. Table 1 Front Panel LEDs LED COLOR STATUS DESCRIPTION PWR1, PWR2 Off Both power modules are turned off, not receiving power, or not functioning. Green On The power module is operating. Red On The power module has malfunctioned. Turn the power module off, wait a few minutes, and turn the power module back on (see Section 1.5 on page 41). If the LED shines red again, then please contact your vendor. ZyWALL USG 2000 User's Guide 39