Extreme Networks 71G21K2L2-48P Gigabit PoE+ Managed Switch

Technical SpecificationsModel:71G21K2L2-48P Brand:Extreme Networks Product Type:1U rackmount Layer2/Layer3 managed PoE+ access/ToR switch Ports:48 × 10/100/1000BASE-T PoE+ RJ45 ports,2 × SFP+ 1/10G uplink slots,2 × QSFP+ 10/40G uplink slots PoE standard:IEEE 802.3at PoE+, max 30W per port Switching architecture:Non-blocking Redundancy:Hot-swappable dual modular power supplies and fan trays OS:EOS (Enterasys Operating System) Management:COM serial port,Micro-USB debug port,out-of-band management Operating temperature:0℃ ~ +40℃ Storage temperature:-40℃ ~ +70℃ Relative humidity:10%~90%, non-condensing Weight:7.12 kg

System compatibility71G21K2L2-48P belongs to Extreme Networks 7100 series, formerly Enterasys. Supports Virtual Switch Bonding. Compatible with Extreme validated SFP+,QSFP+ transceivers,DAC and AOC cables. Designed for data center top-of-rack, enterprise campus high-density PoE deployments for wireless APs and IP cameras. Widely used for spare replacement.

Function71G21K2L2-48P is a high-performance Layer3 PoE+ switch. It supports static/dynamic routing,VLAN segmentation,STP/RSTP/MSTP,LACP link aggregation,ACL,QoS,multicast and 802.1X authentication. It automatically detects powered devices,monitors PoE power budget,port link status,optical DDM parameters,module temperature,fan speed and power supply health. Used for resilient high-density PoE access and top-of-rack server connectivity.

InstallationMount the switch on 19-inch 1U rack. Install hot-swappable power supplies and fan trays. Connect Cat5e/Cat6 cables to PoE+ RJ45 ports. Insert SFP+/QSFP+ transceivers or DAC/AOC for high-speed uplink. Connect COM console port for EOS configuration. Verify system boot,port link and PoE status before putting into production.

Interface48×PoE+ RJ45 gigabit ports,2×SFP+ slots,2×QSFP+ slots,COM serial port,Micro-USB debug port,system status LEDs,PoE indicator button,reset button,PSU and fan bays for Extreme Networks 71G21K2L2-48P.

FeatureOriginal Extreme Networks 7100 series 1U rackmount 48-port PoE+ Layer3 managed switch,non-blocking architecture,redundant hot-swap power and fans,10G/40G high-speed uplink options,transceiver DDM monitoring,EOS operating system,built-in self-diagnostic function. This spare supports enterprise campus and data center high-density PoE access and top-of-rack network deployment.

DiagnosticSwitch fails to boot: check modular PSU installation and AC power input. PoE port no power: verify PD detection,total PoE budget and port admin status. Port link down: check copper cable or SFP+/QSFP+ module,fiber/DAC cable. Transceiver no DDM data: confirm Extreme validated pluggable transceiver. Over-temperature alarm: inspect fan tray operation and chassis airflow.

Product Brief71G21K2L2-48P is Extreme Networks 1U rackmount 48-port gigabit PoE+ Layer3 managed switch with 2×10G SFP+ and 2×40G QSFP+ uplink slots,classic spare part for enterprise campus and data center high-density PoE access overhaul.

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 renovation.