Robust System Design
The ES-3000 Series comes with comprehensive features to ensure round-the-clock operation of the network. With BPS support, power is supplied to the switch in case of an unexpected power outage. The IEEE802.3ad Link Aggregation feature reduces network downtime by providing redundant paths and bandwidth aggregation to critical connections. By utilizing unique design of 4G uplink, you own not only superb transmission bandwidth, but also extrasecured paths for critical transmission by aggregation of Gigabit ports. IEEE802.1w Rapid Spanning Tree Protocol (RSTP) allows immediate recovery from failed links by sending packets via the backup link.

QoS Capability
Harnessing new cost-cutting IP applications (such as VoIP and video conferencing) in today’s modern business environment makes a big difference in gaining the market advantage. The ES-3000 Series provides superior QoS capability to fully utilize the power of applications. Features like multi-layer (L2/L3/L4) ACL, eight priority queues, DSCP and WFQ scheduling algorithm allow you to maximize network bandwidth usage and provide quality of network services. With the support of MVR and IGMP snooping features, the ES-3000 Series enables successful IP multicasting transmission across multi-VLAN environment. In addition, the ES-3000 Series supports flexible bandwidth control with granularity of 64kbps which enables better bandwidth administration for network operators.

Protection and Security
ES-3000 Series switches come with 4-layered protection framework against network threats. Multi-layer (L2/L3/L4) ACL enables policy based protection by setting (L2/L3/L4) parameters (such as the MAC, VLAN, IP, Protocol, TCP/UDP, and DSCP). The 4K VLAN range allows maximum administrative freedom in your network. For device access control, you can configure MAC freeze, MAC filtering and limit the number of MAC address learned on a port. Besides user authentication, IEEE 802.1x provides central network access management and offers further access control on VLAN, bandwidth and traffic priority queues. In addition, the intrusion lock feature on the ES-3000 Series is designed to prevent unauthorized access. Most importantly, support of VLAN Stacking (Q-in-Q) can be applied for enterprise-class L2VPN application. Thus, the ES-3000 Series allows you to implement a stricter layer1 to layer4 security policy.

Network Management
ZyXEL’s exclusive iStacking technology allows you to manage a switch cluster (of up to 24 ZyXEL switches) through a single master ZyXEL switch. At the same time, various network management options are available, like Web, telnet and the console port are supported. Network administrators can choose to manage the switch using the friendly web based configuration or the convenient text-based CLI (Command Line Interface.) Furthermore, the ES-3000 Series supports SNMP-based, centralized management software: NetAtlas Enterprise or NetAtlas Workgroup. Thus switch maintenance can be done remotely. This helps reduce operation cost and greatly increase efficiency. For management security, use SSHv1/v2 and SSL to encrypt management sessions. Thanks to these sophisticated features, network administrators can set up powerful corporate networks and streamline their management efforts.