3Com 3CRS48G-48P-91 Data Sheet - Page 2

2 3COM SWITCH 4800G GIGABIT FAMILY KEY BENEFITS High Expandability for Investment Protection All models in the 3Com Switch 4800G Gigabit Family include auto-sensing 10-, 100- and 1000-Mbps connections, giving you the ability to gradually upgrade your edge connections to higher bandwidth while retaining full compatibility with slower desktops. Support for dual-speed SFPs facilitates connections to both 100 and 1000 MB fiber cabling, making network migration easier. two expansion slots, each supporting available 1- or 2port 10-Gigabit and local connection modules, provide interfaces for high bandwidth unit-to-unit local connections and 10-Gigabit uplinks, helping you to protect your network investment. Every Switch 4800G model has the ability to pass and route iPv4 and iPv6 data. As an iPv4/iPv6 dual-stack platform, the switches are iPv4- and iPv6-ready, supporting the major L3 routing protocols, multicast protocols and policy routing mechanisms and ensuring a seamless migration from iPv4 to iPv6. Premium Security Multiple layers of security are built into each Switch 4800G. Management access can be limited to known stations and unauthorized access can be prevented by encrypting management traffic with SSh for CLi access, SSL/httPS for web access and SnMPv3 for SnMP management access. Advanced processor queuing mechanisms help prevent Denial of Service (DOS) attacks while DhCP snooping ensures that devices can only receive an iP address from a legitimate DhCP server on the network. Enhanced Access Control Lists (ACLs) restrict users to certain areas of your network. Unicast Reverse Path Finding (uRPF) technology verifies the authenticity of a route from the receiving interface to the source address, deleting the data packet if the route does not exist and preventing malicious network attacks that are based on source address spoofing. Advanced network access control features, including iEEE 802.1X and MAC-based network login, help ensure that only authorized users get access to the network. Multilayer Reliability 3Com 4800G switches interoperate with a number of link reliability technologies including Rapid Ring Protection Protocol (RRPP), a fast ring protection mechanism created by 3Com. if a link or node on the Ethernet ring fails, RRPP rapidly moves traffic to a backup link, ensuring normal operations without impacting network convergence time. Other network resiliency features include Spanning tree, Rapid Spanning tree and Multiple Spanning tree protocol support. hardware resiliency, delivered with available redundant power system support, allows for the continued operation of the switch in the event of a power supply failure, and supplements power for full PoE operation across all ports. For high-availability fiber connections, the Switch 4800G 24-Port SFP comes with dual 1+1 redundant power supplies with dual power inputs. All switches in this family include fault detection and alarms, power supply and fan monitoring, and remote management. Convergence-Ready Support Built-in PoE enables certain models of the Switch 4800G to power network-attached equipment, significantly reducing costs associated with terminal equipment cabling and management. industry-standard iEEE 802.3af Power over Ethernet speeds deployment of VoiP, wireless access points and network-attached video surveillance camera systems. the voice VLAn technology embedded in this family ensures the highest level of security and performance by placing voice traffic on a virtual voice network. By identifying voice streams at their ports and adding corresponding access ports to voice VLAns, the switches provide dedicated channels for voice traffic. Priority rules are then issued to ensure that voice streams are transmitted before data or video streams and conversation quality is optimal. Unparalleled Quality of Service the 3Com Switch 4800G offers L2-L4 packet filtering and delivers flow classification based on source iP and MAC addresses, destination iP and MAC addresses, ports, protocols or VLAns. the switches also offer flexible queue scheduling algorithms that support settings based on ports and queues and include three scheduling modes: Strict Priority (SP), Weighted Round Robin (WRR) and SP+WRR. Committed Access Rate (CAR) provides minimum granularity of 64 kbps. Outbound and inbound port mirroring monitors and duplicates data packets for network detection and troubleshooting.