Preventing subscribers from affecting each other on a shared network or device is a major concern for SMB networks. The ZyXEL ES3500-8PD offers a complete set of security features that protect user data while administrating network traffic. The series features port security, 802.1X authentication and RADIUS accounting to prevent unauthorized access and provide powerful access control for converged networks. The ES3500-8PD features a multilayer (L2/L3/L4) ACL suite of sophisticated policy-based control mechanisms, which can be used to help SMBs prevent abnormal or illegal access. Policies can be defined via a GUI or CLI to deny packets based on source and destination MAC addresses, IP addresses or TCP/UDP ports. The ES3500-8PD is an ideal solution for SMBs that need to establish a converged network across long distances or multiple floors. It supports dual-speed (100/1000 Mbps) SFP uplinks, providing more options in establishing fast and reliable connections in distributed and long distance deployments. Supporting Digital Diagnostics Monitoring Interface (DDMI), the ES3500-8PD allows administrators to easily detect packet loss from transceivers and aging cables to not only avoid unstable network service, but also lower maintenance overhead and boost business productivity. Designed to protect business investment, the ES3500-8PD features a complete set of IPv6 host management functions to guarantee smooth IPv4-to-IPv6 migration. This feature set benefits high-density Fast Ethernet deployments, making the ES3500-8PD perfectly suitable for both core and edge networks. ES3500-8PD can be powered using the included AC adapter or using 802.3af PoE standard. This flexibility allows for this switch to be deployed virtually anywhere a power plug is not readily available.