Allied Telesis AT SB4411A - switch - 8 ports

The AT-SB4000 series is ideal for multiple tenant unit and central point aggregation for metro area or campus networks as well as an enterprise mid-tier aggregation device. Packaged in a versatile modular chassis configuration, AT-SB4000 series combines hardware-based, wirespeed, non-blocking switching and IP/IPX routing with advanced, flexible policy-based Quality of Service, rich multicast support, and a comprehensive set of configuration and control features designed to simplify administration and maintenance tasks. The AT-SB4000 series delivers hardware-based switching for Layers 2, 3, and 4 with no performance penalty in a wide variety of interface types and feature options. AT-SB4000 series offers uncompromised packet switching performance, enabled by a non-blocking switch fabric delivering Layer 2 and Layer 3 IP/IPX data at wirespeed on all ports regardless of packet size. With up to 128Gbps switching capacity and up to 232, 000 MAC/IP addresses, the AT-SB4000 series seamlessly meets the demands of education, service provider, and enterprise network aggregation and transport points. The AT-SB4000 series' powerful, market leading Quality of Service mechanism allows traffic shaping in a highly programmable manner based on physical layer to Layer 4+ packet characteristics. The resulting 128 different Classes of Traffic enable flexible policy based Service Level Agreements with independent latency and 64kbps increment min/max bandwidth guarantees. AT-SB4000 series units use IEEE 802.1p, DiffServ, Layer 4 filtering and RSVP along with sophisticated hardware-based switching to deliver a rich QoS capability. The AT-SB4000 series fits into education and government networks requiring separation of multicast traffic and dual staff and student networks all running over a single infrastructure. It is also scalable to metro area networks that need a large number of traffic classes with varying Service Level Agreements as customer traffic enters the MAN. With multicast protocols such as IGMP, IGMP Snooping, DVMRP, PIM-SM and PIM-DM, the AT-SB4000 series delivers TV cable broadcasting, video conferencing, voice conferencing, phone, and Web browsing capabilities. Multicasting between VLANs at wirespeed is also offered for streaming server applications with clients on different VLANs. A traffic storm occurs when packets flood the network, creating excessive traffic and degrading network performance. The broadcast storm control (BCSC) feature allows the user to set limits for each VLAN. This is useful to prevent traffic congestion of the network and inefficient usage of the core. The AT-SB4000 series offers many advanced features to ensure company security: Stateful Inspection, wirespeed filtering, MAC control, Port-Intrusion Detection, Access Control Lists, Port Security, Secure Shell (SSH) and Secure Socket Layer (SSL).With 4096 VLANs available, which are Port, Protocol, Sub-Net, and MAC address-based, security across VLANs is assured. The security features (MAC and IP addresses, SYN, ACK bit level) are in the hardware.