Powerful Layer 3 Routing Solution for All Long-Reach Networks PLANET SGS-6341-16S8C4XR is a Layer 3 Stackable Managed Gigabit Switch that provides high-density performance, Layer 3 static routing, RIP (Routing Information Protocol) and OSPF (Open Shortest Path First) with 10Gbps uplink and multiple SFP fiber interfaces delivered in a rugged, strong case. The administrator can flexibly choose the suitable SFP/SFP+ transceiver according to the transmission distance or the transmission speed required to extend the 10G network efficiently. Besides, with 128Gbps switching fabric, the SGS-6341-16S8C4XR can handle extremely large amounts of data in a secure topology linking to backbone or high capacity servers for ISP and enterprise VoIP, video streaming, and multicast applications. High Performance 10Gbps Ethernet Capacity The four SFP+ slots built in the SGS-6341 series supports Dual-speed, 10GBASE-SR/LR or 1000BASE-SX/LX. With 10Gbps uplink interfaces the SGS-6341 series boasts a high-performance switch architecture that is capable of providing non-blocking switch fabric and wire-speed throughput as high as 128Gbps, which greatly simplifies the tasks of upgrading the LAN for catering to increasing bandwidth demands.   AC and DC Redundant Power to Ensure Continuous Operation The SGS-6341-16S8C4XR is equipped with one 100~240V AC power supply unit and one additional 36-75V DC power supply unit for redundant power supply. A redundant power system is also provided to enhance the reliability with either AC or DC power supply unit. The redundant power system is specifically designed to handle the demands of high-tech facilities requiring the highest power integrity.    Central IP Stacking Management The SGS-6341 series supports IP stacking function that helps network managers to easily configure up to 24 switches in the same series via one single IP address instead of connecting and setting each unit one by one. The IP Stacking technology groups PLANET SGS-6341 switch series together to enable centralized management through a single unit, regardless of physical location or switch type, as long as they are connected to the same local network. High Reliability Hardware Stacking Two of the 10G SFP+ ports are used  to connect several SGS-6341 series  build a virtually logical facility. The SGS-6341 series to gives the enterprises, service providers and telecoms flexible control over port density, uplinks and switch stack performance. The SGS-6341 series can connect as a ring for redundancy and ensures that data integrity is retained even if one switch in the stack fails. You can even hot-swap switches without disrupting the network, which greatly simplifies the tasks of upgrading the LAN for catering to increasing bandwidth demands.     Redundant Ring, Fast Recovery for Critical Network Applications The SGS-6341 Series supports redundant ring technology and features strong, rapid self-recovery capability to prevent interruptions and external intrusions. It incorporates advanced ITU-T G.8032 ERPS (Ethernet Ring Protection Switching) technology and Spanning Tree Protocol (802.1s MSTP) into customer’s network to enhance system reliability and uptime in harsh environments. In a certain simple Ring network, the recovery time could be less than 50ms to quickly bring the network back to normal operation.   Layer 3 Routing Support The SGS-6341 series enables the administrator to conveniently boost network efficiency by configuring Layer 3 static routing manually, and the RIP or OSPF settings automatically. The RIP can employ the hop count as a routing metric and prevent routing loops by implementing a limit on the number of hops allowed in a path from the source to a destination. The OSPF is an interior dynamic routing protocol for autonomous system based on link state. The protocol creates a database for link state by exchanging link states among Layer3 switches, and then uses the Shortest Path First algorithm to generate a route table based on that database.   Strong Multicast  The SGS-6341 series supports abundant multicast features. In Layer 2, it features IPv4 IGMPv1/v2/v3 snooping and IPv6 MLD v1/v2 snooping. In Layer 3 multicast protocols, it features IGMPv1/v2/v3 and DVMRP. With Multicast VLAN Register (MVR), multicast receiver/sender control and illegal multicast source detect functions which make the SGS-6341 series great for any robust networking.   Full IPv6 Support The SGS-6341 series provides IPv6 management and enterprise-level secure features such as SSH, ACL, WRR and RADIUS authentication. It thus helps the enterprises to step in the IPv6 era with the lowest investment. In addition, you don’t need to replace the network facilities when the IPv6 FTTx edge network is built.   Robust Layer 2 Features The SGS-6341 series can be programmed for basic switch management functions such as port speed configuration, port aggregation, VLAN, Multiple Spanning Tree Protocol, WRR, bandwidth control and IGMP snooping. This switch provides 802.1Q tagged VLAN, Q-in-Q, voice VLAN and GVRP Protocol functions. By supporting port aggregation, the SGS-6341 series allows the operation of a high-speed trunk combined with multiple ports.  It enables up to 128 groups for trunking with a maximum of 8 ports for each group.  Excellent Layer 2 to Layer 4 Traffic Control The SGS-6341 series is loaded with powerful traffic management and WRR features to enhance services offered by telecoms. The WRR functionalities include wire-speed Layer 4 traffic classifiers and bandwidth limitation which are particularly useful for multi-tenant unit, multi-business unit, Telco, or network service applications. It also empowers the enterprises to take full advantage of the limited network resources and guarantees the best in VoIP and video conferencing transmission.    Powerful Security The SGS-6341 series supports ACL policies comprehensively. The traffic can be classified by source/destination IP addresses, source/destination MAC addresses, IP protocols, TCP/UDP, IP precedence, time ranges and ToS. Moreover, various policies can be conducted to forward the traffic. The SGS-6341 series also provides IEEE 802.1x port based access authentication, which can be deployed with RADIUS, to ensure the port level security and block illegal users.   Efficient and Secure Management For efficient management, the SGS-6341 Managed Gigabit Switch series is equipped with console, Web and SNMP management interfaces. With its built-in Web-based management interface, the SGS-6341 series offers an easy-to-use, platform-independent management and configuration facility. The SGS-6341 series supports standard Simple Network Management Protocol (SNMP) and can be managed via any standard-based management software.  For reducing product learning time, the SGS-6341 series offers Cisco-like command via Telnet or console port and customer doesn’t need to learn new command from these switches. Moreover, the SGS-6341 series offers secure remote management by supporting SSH connection which encrypts the packet content at each session.   Intelligent SFP Diagnosis Mechanism The SGS-6341-16S8C4XR supports SFP-DDM (Digital Diagnostic Monitor) function that greatly helps network administrator to easily monitor real-time parameters of the SFP and SFP+ transceivers, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.