Level One GTL-2881 User Manual

GTL-2881 Version: 1

28-Port Stackable L3 Lite Managed Gigabit
Switch, 2 x 10GbE SFP+, 1 x 10GbE Module Slot

The GTL-2881 series includes high-performance Gigabit Ethernet Layer3 Lite switches featuring 28 ports;
24 10/100/1000BASE-T ports, two 10G SFP+ ports, and one 10G expansion slot for a dual-port module.
The switch is ideal for high-performance server aggregations, such as enterprise data centers, where it can
connect high-end or network-attached file servers through fiber ports. It can also deployed as a backbone
upgrade, or to provide Gigabit-to-the-desktop for power users. This switch is packed with features and is a
cost-effective solution that brings continuous availability, enhanced security, and advanced QoS to the
network edge, while maintaining simplicity of management.

Key Features

Dynamic ARP Inspection (DAI) protects switches against ARP spoofing

­Stacking up to 8 switches in one stack

­Support Operations, Administration, and Maintenance (OAM) mechanisms

­Ethernet Ring Protection Switching (ERPS) for Ethernet ring topologies with sub-50 ms failover

­capabilities
IEEE 802.1d/w Spanning Tree Protocol (STP) and port mirroring

­IEEE 802.3ad LACP for auto port aggregation

­Supports port-based VLAN, IEEE 802.1Q VLAN Tagging

­QoS control for traffic prioritization and bandwidth management

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Specifications

System Specifications

Standards & Protocols:

IEEE 802.1p priority tags
IEEE 802.1x port authentication
IEEE 802.3x Ethernet frame start and stop requests and timers used for flow control on full-duplex links
IEEE 802.3u CSMA/CD access method and physical layer specifications for 100 BASET-X Fast Ethernet
IEEE 802.3z CSMA/CD access method and physical layer specifications for 1000 BASE Gigabit Ethernet
IEEE 802.1q Virtual LAN
IEEE 802.1d Spanning Tree Protocol
IEEE 802.3ad Link Aggregation Control Protocol
IEEE 802.1s Rapid Spanning Tree Protocol
IEEE 802.1w Multiple Spanning Tree Protocol

Memory:

Flash Memory : 128 MB
DRAM : 256 MB

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Buffer Memory:

1.5 MB

Connectors and Cabling:

24 x 10/100/1000Mbps RJ45 port
2 x SFP+ 10 Gigabit Uplink Ports
1 x RJ-45 Console Port
1 Slots for 2 x 10G Stacking /Uplink

Indicator:

LED indicaters : Port, Uplink, System, Diagnoustic

Transmission Method:

Store and Forward

Power Input:

100 to 240 V, 50-60 Hz, 1.5 A

Power Consumption:

35 W

Features

General:

OAM :
IEEE 802.3ah Link
IEEE 802.1ag Connectivity Fault Management (CFM)
ITU-T Y.1731 performance and throughput management
Stacking Features :
IP Clustering up to 36 devices, bandwidth up to 20G
Hardware Stacking up to 8 units, bandwidth up to 20G
IPv4/IPv6 dual protocl stack
G.8032 (ERPSv1/v2)
VLANs:

- Supports 4K IEEE 802.1Q VLANs

- Port-based VLANs

- GVRP/GARP

- IEEE 802.1v Protocol-based VLANs

- MAC-based VLANs

- IP subnet-based VLANs

- Private VLANs (Community)

- Traffic Segmentation (port isolated)

- Voice VLANs

- VLAN trunking

- VLAN translation

Security:

Port security

802.1x
Access Control List
DHCP snooping
IP Source Guard
Dynamic ARP Inspection
DoS Protection
AAA
SSH v1.5/v2
SSL/HTTPS
Management access filter

Management:

CLI/WEB Based
Telnet/SNMP v1/v2/v3
RMON I (1,2,3, 9 group)
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