Linksys Service Provider (SPS) switches deliver cost-effective metro Ethernet access solutions. These products are optimized for Multi-Tenant Units (MTU) & Multi-Dwelling Units (MDU) where triple play (Vo IP, video, & data) services are delivered by the Service Provider to multiple businesses or homes in close proximity. The Linksys SPS2024 managed switch makes it absolutely ideal for environments where security & uptime are important. It offers 24 Gigabit copper ports & 2 shared pluggable SFP modules. The SPS switches facilitate the delivery of multiple services over a layer 2 network with support for Q-in-Q. This allows customer VLANs to be kept separate across the Service Provider backbone. Also, for efficient delivery of multicast traffic to multiple customers, these switches provide support for a variation of MVR (Multicast VLAN Registration). Network security is a primary concern for Service Providers, & the SPS family of switches delivers a number of advanced features that alleviates this concern. Support for dynamic ARP inspection eliminates the man-in-the-middle attack. IP source guard prevents a subscriber (or malicious user) from using an IP address not assigned to them. DHCP guard eliminates rogue devices from behaving as a DHCP server. STP root guard prevents a rogue spanning tree device from advertising that it should be the root bridge thereby having the spanning tree network compromised by an outside device. Unauthorized access to the network is protected through 802.1X port & multi-session authentication & MAC filtering/port security. 802.1X requires client to authenticate themselves before the port will pass data. Also, the SPS switches secure management traffic with support for SSH, SSL, & SNMPv 3. The management capabilities of the SPS switches include support for DHCP option 82, allowing for assignment of IP addresses to subscribers on the basis of where they connect to the network. Configuration of the switches can be performed through a graphical user interface or through a Command Line Interface (CLI). The switches also support SNMP for management from a network management station.