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GTL-2891 Version: 1
28-Port Stackable L3 Managed Gigabit Switch, 2 x
10GbE SFP+, 1 x 10GbE Module Slot
The GTL-2891 are a family of high-performance Gigabit Ethernet Layer 3 switches featuring 28 ports; with
24 10/100/1000BASE-T ports, 2 10G SFP+ ports, and one 10G dual port expansion slot. The switches are
ideal for high-performance server aggregations, such as enterprise data centers, where they can connect
high-end or network-attached files servers over fiber ports. They can also be deployed as a backbone
upgrade, or to provide Gigabit–to-the-desktop for power users. These switches are packed with features
and are a cost-effective solution that bring 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 Quality of Service (QoS)
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 BASE-TX 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 (LACP)
IEEE 802.1s Rapid Spanning Tree Protocol
IEEE 802.1w Multiple Spanning Tree Protocol
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Memory:
Flash Memory : 128 MB
DRAM : 256 MB
Buffer Memory:
1.5 MB
Connectors and Cabling:
24 x 10/100/1000Mbps RJ45 port
2 x 10G SFP port
1 x RJ45 Console port
1 Slots for 2 x 10G Stacking /Uplink
Indicator:
LED indicaters : Port, Uplink, System, Diagnoustic
Transmission Method:
Store and Forward
Power Input:
AC 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
Quality of Service(QoS):
Traffic Classification based on
IEEE 802.1p CoS, IP Precedence,
IP DSCP
Traffic Scheduling based on Strict
Priority, Weighted Round Robin,
Strict + WRR traffic scheduling
IGMP Snooping
MVR (Multicast VLAN Registration)
QinQ/Selective QinQ
G.8032 (ERPSv1/v2)
IPv4/IPv6 dual protocl stack
VLANs:
- Supports 4K IEEE 802.1Q VLANs
- Port-based
- GVRP/GARP
- VLAN Translation
- IEEE 802.1v Protocol-based VLANs
- MAC-based VLANs
- IP subnet-based VLAN
- Private VLAN (Community)
- Traffic Segmentation (port isolated)
- Guest VLAN
- Voice VLAN
- VLAN trunking
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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
PPPoE Intermediate Agent
Management:
CLI/WEB Based
Telnet/SNMP v1/v2/v3
RMON I (1,2,3, 9 group)
Software Download
Auto upgrade
Dual Image
BOOTP/DHCP
SNTP
DNS
IP clustering
Even/Error/System log
Port monitor MAC/VLAN
LLDP (802.1ab)
sFlow
Delay reload
L3:
Multi-netting (CIDR)
IP v4/v6 Unicast Routing :
ex. Static Route , ECMP , RIP v1/v2
& RIPng , OSPF v2/v3 , BGPv4+
IP v4/v6 Multicast Routing :
ex. PIM-DM/SM, PIM-DM6/SM6
VRRP
MLD v1/v2
ARP/Proxy ARP
IGMP/IGMP proxy v1/v2/v3
Ease of Use:
Yes
Performance
Backplane (Gbps):
Switching Bandwidth : 128 Gbps
Forwarding Performance : 95.23 Mpps
MAC Address Table:
16K
Data Transfer Rate:
GE:Resolution 64 Kbps ~ 1000 Mbps
10G:Resolution 64 Kbps~ 10000 Mbps
Packet Forwarding Rate:
95.24Mpps
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Jumbo Frame (K):
10K
Environment
Power Saving:
Yes
Acoustic Noise:
No test report
Heat Dissipation:
Fanless
Temperature (°C):
Operating : 0°C to 45°C
Storage : -40°C to 70°C
Humidity (Non-condensing):
Operating/Storage : 10% to 90%
Physical Specifications
Dimensions (W x D x H mm):
44 x 31.5 x 4.4 cm
Weight (g):
3.7 Kg
Reliability
MTBF:
904,213 hr (25°C)
Approval and Compliance
EMI/EMS:
certification : FCC , CE , VCCI Class A
Safety:
Certification : CB , UL
Environmental Test:
Environmental Regulation compliance : WEEE , RoHS
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Diagram
Order Information
GTL-2891
Package Contents
GTL-2891
Power Cord
19" Rack Mount Kit
Rubber Feet
Quick Installation Guide
Resource CD (User Manual, QIG)
Console Cable
Optional Accessory
MDU-0211
2-Port 10G SFP+ Module
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No liability or responsibility for any errors or omissions in the content.
Specifications are subject to change without notice.
All mentioned brand names are registered trademarks and property of their owners.
Copyright © Digital Data Communications GmbH, Germany. All Rights Reserved.
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