L2/L3 Switches

Open Design Larch Networks Ethernet L2/L3 Switch

  • Main Features
  • Overview
  • Solition
  • Specification

Switch Main Features

  • 24 port Ethernet Switch8/16/24/48/96 FE/GE/10G Switches
  • 2-4 mini Gigabit Interface Converter (mini-GBIC) slots for fiber and copper Gigabit Ethernet expansion
  • Full wire-speed non-blocking forwarding
  • QoS management enabled by advanced queuing
  • IPv4/v6 Differentiated Services (DiffServ)/DSCP traffic prioritization specifications
  • WEB, NSP and CLI (terminal, ssh) configuration and monitoring
  • 802.1Q-based VLANs enabling and Selective QnQ enabling
  • Port-level security via 802.1X authentication
  • 4/8/16 Group LAG support with protocol (LACP)
  • All types of storm control
  • Port mirroring for noninvasive monitoring of switch traffic
  • Jumbo frame support (10 KB)
  • Power over Ethernet (POE) optional

High Software Reliability

  • Enterprise-class software
  • Health monitoring and self-healing

High Hardware Availability

  • Thermal sensors
  • Fans with fan control
  • Backup power supply optional

PHY Options Including SFP

  • RJ-45 10/100/1000Base-T Cu
  • SFP for 100/1000BASE-X FO
  • SFP+ 10 Gb


  • Full wire-speed, non-blocking L2/L3 forwarding
  • Any packet size up to Jumbo frames (10K)


Larch Networks Small Business Smart Switches are cost-effective switching solutions that are ideal for small businesses, the network edge, workgroups within organizations and even home.

These easy-to-install switches offer many of the same quality-of-service (QoS) and network features found in more expensive full Layer 2 managed switches, but without their complexity. The Larch Networks based product provides few complications for 8/16/24/48/96-Port Ethernet Switch offers both Giga and Fast Ethernet over copper or optical Small Form-Factor Pluggable (SFP/SFP+) interfaces for connecting the switch both to client and core networks.

The simplified user WEB interface is an intuitive management tool, enabling you to quickly use the comprehensive feature set of the switch, for a better-optimized network.

Ethernet Switch Board


Solutions include numerous QoS features to help ensure that traffic is prioritized properly to deliver the best possible user experience for real-time applications such as voice and video or bandwidth-intensive graphic/video file uploads or downloads.

Additional QoS capabilities, such as IEEE 802.1p priority tagging, differentiated services code point (DSCP), and four hardware queues, also maintain quality for real-time applications such as voice and video.

With its Internet Group Management Protocol (IGMP) snooping feature, the Larch Networks Switch limits IP multicast traffic (such as real-time presentations, video-conferences, and online gaming) to only the ports that have requested it, enabling the rest of the network to operate at peak efficiency.

Network traffic can be optimized with the switch’s 802.1Q VLAN support, which enables you to quickly segregate network traffic by department or workgroup. VLANs also provide an additional layer of security by keeping sensitive data separated from other workgroups on the network.

Open SDK

  • Different HW platforms with schematics: production ready
  • PSS/CPSS drivers with full customer support
  • Switch Open Code with full development environment
  • WEB GUI templates in addition to full CLI support
  • Documentation portfolio with User and CLI Guides.

Layer 2 Feature Set

  • 8K-16K L2 Forwarding Entries
  • 802.1w Rapid Spanning Tree
  • 802.1s Spanning Tree Protocol
  • 802.3ad Link Aggregation/LACP
  • 4-16 LAGs
  • 802.1Q VLANs (256-4K VLANs)
  • 802.1AB Link Layer Discovery Protocol
  • Port Mirroring
  • Jumbo Frames (9216 Bytes)
  • 802.3x PAUSE
  • Static MAC Addresses
  • IGMPv1,2,3 Snooping
  • MLDv1,2 Snooping

Basic Features

  • Ports - 24 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T, including combo ports with mini GBIC/SFP slots
  • Auto medium dependent interface (MDI) and MDI crossover (MDI-X)
  • Auto negotiate/manual setting
  • Buttons Reset
  • Cabling type Unshielded twisted pair (UTP) Category 5e or better for 1000BASE-T
  • LEDs System, Gigabit Link/Act, and Speed

Security Features

  • 802.1X-RADIUS authentication
  • MD5 encryption
  • Port security-MAC-based filtering
  • Management access control
  • NAP full support

Network Management

  • 10/100/1000 Mgmt Ports
  • RS-232 Serial Console Port
  • Syslog
  • Tacacs
  • AAA
  • Simple Network Time Protocol (SNTP)
  • WEB management
  • File download via HTTP
  • SNMP v1/2/3


  • Priority levels 4-8 hardware queues
  • Scheduling Priority queuing and weighted round-robin (WRR)
  • Shaping per port and per queue
  • Rate limiting for different packet types
  • Class of service:
    • Port based
    • 802.1p VLAN priority based
    • IPv4/v6 IP DSCP based

IEEE Compliance

  • 802.1D Bridging and Spanning Tree
  • 802.1p QOS/COS
  • 802.1Q VLAN Tagging
  • 802.1w Rapid Spanning Tree
  • 802.1s Spanning Tree Protocol
  • 802.1AB Link Layer Discovery Protocol
  • 802.3ad Link Aggregation with LACP
  • 802.3x Flow Control
  • 802.3ab 1000BASE-T
  • 802.3z Gigabit Ethernet

Management MIBs

  • Fully MIB managed device
  • RFC 1213 - MIB-II
  • Ether-like MIB
  • RFC 1493 - BRIDGE-MIB
  • IF-MIB

Environmental Characteristics

  • Operating Temperature 0 to 40 °C
  • Storage Temperature -40 to 70 °C
  • Relative Humidity 5 to 95%
  • Industrial Ethernet is supported

Physical Characteristics

  • Size: 1U

Standards Compliance

  • EMI: FCC Part 15 Class A
  • ICES-003 Class AVCCI Class A
  • Safety: IEC/UL/CSA/EN 60950 CE, UL, TUV Mark

Power Specifications

  • Max Output Power: Product Specific
  • Input Voltage Range: 100-240VAC
  • Input Frequency: 50-60 Hz

Model Highlights

Port Count 8/16/24/(*) ports
Throughput FE 1.6/3.2/4.8 Gbps (**)
Throughput GE 16/32/48 Gbps (**)
Packets/Second 11.9/23.8/47.6 Mpps for GE
CPU 400-800MHz
Flash Memory 8-16 MB
Main Memory 128-256 MB
Serial Ports 1
Interface Type SFP/Cu
Power Starting from 7 Watts (***)

(*) 48 port model is also evaluable
(*) according to port density and not including Combo
(**) according to port density and HW design

Supported SFP and Copper Media

Interface Type Media Max Distance
1000BASE-SX 50 micron MMF 550m
1000BASE-LX 50micron MMF 10km
1000BASE-T Category 5 Copper 100m