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Chapter 2: Overview
• Features per-port shaping, policing, and Broadcast Storm Control.
• Saves power using two proprietary power management techniques.
• Includes IEEE 802.1Q-in-Q nested VLAN support.
• Uses full-duplex flow control (IEEE 802.3x) and half-duplex backpressure.
Features extensive front-panel diagnostic LEDs: For LGB2118A: System: Power, TP Port 1–16: LINK/ACT, 10-/100-/1000-Mbps,
SFP Port 17 and 18: SFP (LINK/ACT); For LGB2124A: System: Power, TP Port 1–24: LINK/ACT, 10-/100-/1000-Mbps, SFP Port
21, 22, 23, and 24: SFP (LINK/ACT)
• Includes these management features:
- Port status and easy port configuration.
- Per port traffic monitoring counters.
- Provides a snapshot of the system information when you login.
- Port mirror function.
- Static trunk function.
- Supports 802.1Q VLAN.
- Supports user management and limits login to one user.
- Maximum packet length can be up to 9600 bytes for jumbo frame applications.
- Broadcasting Suppression prevents a suspended or crashed network.
- Sends the trap event while monitored events are happening.
- Supports default configuration, which can be restored to overwrite the current configuration via Web UI and/or by pressing the
switch’s Reset button.
- Hot-pluggable SFP modules.
- Supports Quality of Service (QoS) for real-time applications based on the information taken from Layer 2 to Layer 3.
- Use the built-in Web-based management instead of the CLI interface, providing a more convenient GUI for the user.
2.3 What’s Included
Before you install the switch, verify that the package contains the following:
• 18- or 24-Port Gigabit Smart Switch Eco Fanless
• Mounting Accessory (for 19" Rack Shelf)
• AC Power Cord
To access this user manual PDF file, go to ftp://ftp.blackbox.com/anonymous/manuals/L/ LGB2118A_rev1.pdf
If anything is missing or damaged, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com.
You might also need:
• SFP Modules (optional, LFP401, LPF402, LFB403, or LFP404, described in Table 2-1)