Managed Gigabit Ethernet Switch with 10GbE uplinks

The Gigabit Ethernet Managed Switch adds (28) or (52) high-speed ports—including four 10-GBE SFP+ ports, while offering the management and security features your enterprise network needs.

This capable Layer 2 switch offers (24) or (44) autosensing 10-/100-/1000-Mbps RJ-45 Ethernet ports. It also has four dual-media ports, each of which consists of an 10-/100-/1000-Mbps RJ-45 port plus an SFP port. These dual-media ports can be used either as a normal UTP Ethernet port or adapted to 100- or 1000-Mbps fiber through the use of an SFP. Additionally, the switch features four SFP+ ports which support 1- or 10-Gbps uplinks through the use of SFP+ transceivers.

Fully manageable
The switch is fully managed, supporting SNMP version 1, 2c, and 3. The embedded RMON software agents support RMON groups 1 (history), 2 (statistics), 3 (alarms), and 9 (events).

The integral Web server enables Web-based management via Web browser. This GUI interface enables switch configuration, system dashboard, maintenance, and monitoring.

The wide range of management and support features also includes dual image, port mirroring, LLDP, sFlow®, UPnP®, IPv6, SSH, RADIUS, DHCP Client/DHCPv6 Client, SNTP, cable diagnostics, ping, syslog, and Telnet client with SSH security.

Support for VLAN and QoS
Support for up to four simultaneous VLANs enables you to segment traffic with port-based, 802.1Q tag-based, or MAC-based VLANs.

802.1p Layer 2 quality of service (QoS) enables prioritization of time-sensitive applications such as VoIP and video.

Secure
You get enterprise-class security features, too. 802.1X port-based network access control authenticates devices connecting to your network. The switch also supports SNMPv3 cryptographic security, SSH, and SSL. Plus, you can set up a guest VLAN that enables visitors to access the Internet without also giving them access to the corporate network.

Green
The Gigabit Ethernet Managed Switch features IEEE 802.3az energy-efficient Ethernet, which scales down power consumption during periods of low data activity. This feature adds up to energy savings of up to 50%.

Cable length detection adjusts signal strength to the cable length, reducing power consumption on shorter cable runs.

Aggregate Bandwidth— 52 Gbps
Buffer Architecture — 1392 KB on-chip frame buffer
MAC Addresses — 32 K
Connectors —
LGB5052A:
(44) 10-/100-/1000-Mbps RJ-45;
(4) dual-media ports, each consisting of (1) 10-/100-/1000-Mbps RJ-45 and (1) SFP;
(4) 1-/10-Gbps SFP+
LGB5028A:
(24) 10-/100-/1000-Mbps RJ-45;
(4) 1-/10-Gbps SFP+
Network Interface —
Ports 1–44: RJ-45 connector (Auto MDI–X);
10BASE-T: RJ-45 (100-ohm, UTP cable, Category 3 or better);
100BASE-TX: RJ-45 (100-ohm, UTP cable, Category 5 or better);
1000BASE-T: RJ-45 (100-ohm, UTP or STP cable, Category 5, 5e, or 6,
Ports 45–48: RJ-45 connector/(100/1000M) SFP,
Ports 49–52: 1G/10G SFP ports
Indicators — LEDs: System: Power; TP port: Status (LINK/ACT), 10/100/1000M; SFP port: Status (LINK/ACT/SPD), 100/1000M
Switch Features —
Flow Control - Full duplex: IEEE 802.3x;Half duplex: Backpressure;
Forwarding Mode - Store-and-forward;
Throughput - 130.95 mpps (64-byte packets), 136 Gbps (switching capacity);
Jumbo Frames: Frame sizes up to 9 KB supported on Gigabit interfaces
Management Features —
In-Band Management - SSH/SSL, Telnet, SNMP, or HTTP;
Out-of-Band Management- RS-232 (RJ-45 console port);
Software Loading - HTTP, TFTP in-band, Console out-of-band
Power — Internal power supply: autosensing 100–240-VAC, 50–60 Hz, 60W max
Size —
LGB5028: 4.4 x 2.1 x 21 cm (1.75” (1U) H x 17.4"W x 8.3"D)
LGB5052A: 1U 4.4H x 44.2W x 30D cm (1.75H x 17.4"W x 11.8"D)
Weight —
LGB5028A: 2.4 kg (5.3 lb.)
LGB5052A: 4.1 kg (9.1 lb.)
Environmental —
Operating temperature: 0 to 40° C (32 to 104° F);
Operating humidity: 10 to 90% noncondensing

• Managed 10Gigabit Switch
• (4) adhesive rubber feet
• Mounting accessory (for 19" rack shelf, optional)
• (1) RS-232 to RJ-45 Console Cable
• (1) AC power cord
• (1) installation guide
• This user’s manual in PDF format on CD-ROM