Extreme Networks 71G11K2L2-48 Summit Series 48-Port Gigabit Ethernet Access Switch

Technical Specifications

Model：71G11K2L2-48 Brand：Extreme Networks Product Type: 1U rack mount Layer2/L3 gigabit campus access switch

Front Ports:

• 48 × 10/100/1000BASE-T auto-sensing RJ45 copper ports

• 4 × 1G SFP uplink slots for optical transceivers or copper SFP

• RJ45 serial console port for local CLI configuration

• USB port for firmware upload and configuration backup

• LED indicators for port link, activity, stack ID, power and fault alarm

Rear Panel Interfaces:

• Dual hot-swappable AC PSU slots for power redundancy

• Hot-swappable fan tray

• Equipment grounding terminal

Switching & Layer Features: Switch Fabric: Wire-speed non-blocking switching fabric Forwarding Rate: Wire-speed forwarding MAC Address Table: 128K entries Max Jumbo Frame: 9216 bytes VLAN: Up to 4094 802.1Q tagged VLAN Routing: IPv4 / IPv6 static routing, RIP, OSPF Security: 802.1X port authentication, ACL, storm control, MAC filtering QoS: Hardware L2-L4 classification, multiple priority queues Stacking: SummitStack, support multiple units logical stacking OS: ExtremeXOS operating system

Power & Mechanical: Power Supply: Dual hot-swappable 100-240V AC power modules Cooling: Hot-swappable fan tray Operating temperature：0℃ ~ +40℃ Dimension: Standard 19-inch 1U rack form factor Weight: Approx 6.2 kg Mounting: 19-inch rack mounting brackets included

System compatibility

71G11K2L2-48 belongs to Extreme Summit access switch family. Compatible with Extreme 1G SFP transceivers. Supports SummitStack stacking with matching Summit series switches. Designed for enterprise office, classroom and building access layer. Widely used for campus LAN upgrade and spare replacement.

Function

71G11K2L2-48 is enterprise 48-port gigabit access switch manufactured by Extreme Networks. 48 gigabit copper ports connect desktop PCs, IP phones and wireless APs. Four SFP uplink slots provide fiber connection to aggregation layer. ExtremeXOS delivers complete L2 switching and basic L3 routing functions. SummitStack technology can stack multiple switches for unified management. Dual redundant power and hot-swap fans improve network reliability. Widely deployed for campus, commercial building access network spare replacement.

Installation

Follow ESD protection procedure. Mount switch into standard 19-inch rack. Insert SFP transceivers and patch cables. Connect AC power cords. Access console port for initial ExtremeXOS configuration, VLAN, ACL and stacking setup. Verify port link and stack status after power-up.

Interface

48×1G RJ45 ports,4×1G SFP slots,USB port,serial console port,dual hot-swap PSU slots,hot-swap fan tray,status LED indicators for Extreme Networks 71G11K2L2-48.

Feature

Original Extreme Networks 71G11K2L2-48 Summit 1U gigabit access switch,48×1G copper +4×SFP uplink,ExtremeXOS,SummitStack stacking,dual redundant AC power and hot-swap fans. This spare unit is used for enterprise campus access layer network maintenance and hardware replacement.

Diagnostic

Switch fails to boot: Check AC power input and PSU installation. Copper port no link: Verify network cable quality and RJ45 termination. SFP uplink down: Check SFP module compatibility, fiber cleanliness and fiber continuity. Stack split fault: Confirm stacking cable integrity and matched ExtremeXOS firmware. Temperature alarm: Inspect fan tray operation and rack ventilation.

Product Brief71G11K2L2-48 is Extreme Networks Summit series 1U gigabit access switch with 48 copper gigabit ports and 4 SFP uplink ports, supports SummitStack and ExtremeXOS,classic spare for enterprise campus access LAN.

DisclaimerAll parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and replacement.