ALLNET 127211 managed L2 Gigabit Ethernet-switch

The ALLNET 127211 (ALL-SG8428M) is a managed L2 Gigabit Ethernet switch with 24 Gigabit RJ-45 ports and 4 combo SFP slots, designed for small and medium workgroups that require reliable high-speed data transmission. The fanless metal housing supports 19" rack mounting, wall or desk installation and provides non-blocking switching performance with a MAC table capacity suitable for typical office and server connections.

Advantages

This switch offers full Gigabit (10/100/1000 Mbps) auto-negotiation per port, support for flow control (IEEE 802.3x) and Energy Efficient Ethernet (IEEE 802.3az), VLAN (up to 64 static/port-based/tagged), link aggregation (IEEE 802.3ad LACP and static trunk), IGMP snooping (v1/v2/v3), QoS (port-based, 802.1p, IP TOS / DSCP) and storm control for broadcast, multicast and unicast. Fanless operation ensures silent use in office environments while the smart manageable web interface enables VLAN, QoS, RSTP, bandwidth control and IEEE 802.1X configuration for basic network security and traffic management.

Suitable for

• Small and medium office networks with mixed workstations and servers
• Environments requiring silent (fanless) operation such as offices or meeting rooms
• Edge switching with VLAN segmentation, QoS and link aggregation needs
• Connections to storage or uplinks over fiber using the 4 combo SFP slots

Key specifications

• Ports: 24 x 10/100/1000 RJ-45 + 4 combo SFP slots
• Switching architecture: non-blocking
• Standards: IEEE 802.1ab, 802.1D, 802.1Q, 802.1w, 802.3, 802.3u, 802.3ab, 802.3x, 802.3ad, 802.3az
• VLAN: 64 (static / port-based / tagged)
• QoS: Port-based, 802.1p, IP TOS / DSCP
• Features: Link aggregation (LACP & static), IGMP snooping v1/v2/v3, storm control
• Management: Web-based smart management
• Physical: Fanless, metal housing, rackmount 19" / wall or desk mountable
• Weight: 4.7 kg

How to use

Install the ALLNET 127211 in a 19" rack or mount it on a wall or desk; connect powered devices to the RJ-45 ports and uplink servers or other switches via the combo SFP slots as required. Use the web-based management interface to configure VLANs, set QoS policies, enable link aggregation, and apply flow control or storm control settings. Ensure proper cable types (Cat5e or higher for Gigabit) and, if using SFP modules, insert compatible modules before powering up the switch.

Recommendations

Place the switch in a well-ventilated location even though it is fanless, group high-bandwidth devices using link aggregation for uplinks, and configure VLANs and QoS to prioritize critical traffic and reduce broadcast domains.