24-Port L2 Managed Ethernet Switch, (16) SFP Slots + (8) Dual-Media Ports
Includes 24 SFP (Small Form-Factor Pluggable) ports for fiber SFP modules.
Eight SFP ports have a second connector that can be used as a 10/100/1000BASE-T port. These dual-media ports can be used for a 1250-Mbps SFP orfor copper, but not both simultaneously.
Supports all IEEE 802.3/u/x/z Ethernet, Fast Ethernet, and Gigabit Ethernet specifications. Great for mixed-speed environments!
Strongly suits workgroups, office LANs, and larger metropolitan networks carrying higher-priority traffic for powerful applications.
Bundle multiple ports to create a single high-bandwidth port using 802.3ad Link Aggregate Control Protocol (LACP) aggregation.
Programmable higher layer classification and prioritization for reliable Quality of Service (QoS).
Ideal for use in VoIP real-time applications where info moves from Layer 2 to Layer 4.
Manage and configure via an RS-232 serial connection or Web-based tools via an Ethernet connection.
Robust security with VLAN capabilities, as well as port security, IGMP snooping, and illegal access reporting.
Enhanced network management capabilities. Supports SNMP and RMON management.
Spanning Tree (802.1w) and Multiple Spanning Tree (802.1s) algorithms prevent network switching loops.
The 24-Port L2 Managed Ethernet Switch, a fully manageable and stackable Layer 2 device, gives you greater bandwidth control and QoS for switching and sending packets more reliably in VoIP and other real-time applications. The switch enables you to establish economical twisted-pair Ethernet, Fast Ethernet, and Gigabit Ethernet connections to devices on fiber segments of your network.
Supporting a number of IEEE specifications, the switch features 24 SFP slots, eight of which can also be used as 10/100/1000 copper ports, enabling you to integrate applications of varying speeds. The switch is ideal for connecting desktop machines to a workgroup, and linking copper segments to a fiber Gigabit Ethernet backbone.
All you have to do is order the SFP modules that best suit your application, such as the Black Box® 850-nm Multimode Gigabit SFP Module (LGB200C-MLC) and 1310-nm Single-mode Gigabit SFP Module (LGB200C-SLC10). (NOTE: For information on SFP module compatibility, including other modules from Black Box, contact our FREE Tech Support.)
To provide more bandwidth to a specific application or segment, just combine ports using the switch's 802.3ad Link Aggregate Control Protocol (LACP) capabilities. With this bandwidth aggregation feature, the combined Gigabit ports create a multilink trunk for load sharing—which is particularly beneficial in switch-to-switch cascading applications that require high full-duplex speeds. Up to 12 Gigabit ports, in fact, can be set up per trunk for bandwidth up to 24 Gbps on the switch. In addition to link capacity, you can also create higher availability. All traffic is aggregated based on MAC addresses, so traffic loads are balanced effectively. The switch supports a maximum of 12 trunking groups with up to 16 ports per group.
And along with Layer 2 802.1p Priority Queue control, the switch offers a much higher level of Quality of Service (QoS) support, so you can program a higher layer classification and prioritization for traffic in real-time applications. As information goes from Layer 2 to Layer 4, you can ensure reliable voice and data for your important VoIP applications. The switch supports four internal queues for four classifications of traffic.
You can also restrict traffic using the switch's broadcast/multicast storm suppression, which limits broadcast/multicast flooding on your network. You control the rate limit for each of the switch's ports, setting threshold values that dictate at what count packets are to be discarded. Even better, with jumbo frame support, the L2 Managed Ethernet Switch can be set up to forward packets up to 9K in size before discarding them, so you're able to ensure reliable data transmission.
For enhanced security and performance, isolate traffic between different users using the switch's Q-in-Q VLAN feature. With VLAN support for advanced 802.1Q (in the .1Q VLAN protocol), the switch enables you to limit broadcast traffic to within the same VLAN broadcast domain.
Other robust features strengthen security, too, including 802.1x user authentication, which prevents unauthorized access via a network. You can also limit the number of MAC addresses assigned to each port, which, in turn, enables you to control the number of access stations for each port. This way, you not only establish an access mechanism by user and machine, but also control the number of access stations on your network.
Monitor, configure, and control each port's activity with ease. The manageable switch can be controlled through a console connected via its RS-232 serial port, as well as a Web-based management tool running an SNMP agent via one of its Ethernet ports.
For greater port density, you can physically stack up to 16 of the switches and, using Virtual Stacking Management (VSM), manage them all via one IP address. In this configuration, the switches are seen as part of a logically segmented VLAN—an expanded network that doesn't require the expense or configuration of additional hardware to implement.
The switch also features extensive error-tracking capabilities. Port mirroring, for instance, helps you track errors or abnormal packet transmission—all without interrupting the flow of data in your networked switched environment.
For mission-critical applications, use multiple L2 Managed Ethernet Switches, configuring each with a redundant backup bridge path. Then, if a failure occurs on one switch, you'll still be able to guarantee the transmission and reception of packets via a secondary link on your network. For proper load balancing in VLAN applications, the switch uses the 802.1w Rapid Spanning Tree plus the 802.1s Multiple Spanning Tree algorithm for creating a loop-free Layer 2 topology.
For the SFP slots, just order the 1250-Mbps fiber SFP modules that best suit your application. (NOTE: For information on SFP module compatibility, including other modules from Black Box, contact our FREE Tech Support.)