The LevelOne GTL-2690 is a Gigabit Ethernet Layer 3 stackable switch with 24 1000BASE-T Gigabit Ethernet ports and 4 shared SFP (Small Form Factor Pluggable) slots, plus 2 slots for optional 10GE Uplink modules.

Performance and Scalability

The GTL-2690 provides 2 optional 10 Gigabit Ethernet module slots for 10G uplink to bandwidth-intensive applications. Optional 10 Gigabit Ethernet XFP transceivers can be chosen for different distance requirements. This switch also provides two stacking ports for hardware stacking of up to 8 units. It features close loop stacking for a resilient stacking link.

Comprehensive QoS

8 egress queues per port enable differentiated management of up to 8 traffic types. Traffic is prioritized according to 802.1p, DSCP, IP precedence and TCP/UDP port number, giving optimal performance to real-time applications such as voice and video. Bidirectional rate-limiting - per port or traffic class - preserves network bandwidth and allows full control of network resources.

Layer 3 Features

The GTL-2690 delivers high-performance hardware based IP routing. RIP and OSPF provides dynamic routing by exchanging routing information with other Layer 3 switches or routers. DVMRP*, PIM-DM*, PIMSM* Multicast Routing Protocols send IP multicast traffic from one subnet to another. VRRP prevents your system from failing by dynamically backing up multiple Layer 3 switches for routing.

* Future feature (Firmware update)

Key Features

-24 1000BASE-T Gigabit Ethernet ports
-4 shared SFP (Small Form Factor Pluggable) slots
-2 slots for optional 10GE Uplink modules. 
-2 stacking ports for hardware stacking up to 320Gbps throughput
-L3 hardware stacking up to 8 units to a maximum of 200 ports
-Robust IPv6 routing and management: PIM-DM; PIM-SM; DVMRP; IGMP
-Advanced QoS for marking, classification, and scheduling

Technical Specification

Physical Ports

20 RJ-45 10/100/1000Base-T ports
4 Combo GE ports (RJ-45 / SFP)
2 optional I/O Slots for 10G uplink
2 Hardware Stacking Ports
1 RJ-45 console port
1 Redundant Power Supply Connector

Performance

Switching Capacity: 136Gbps
Forwarding Rate: 101.2Mpps
MAC Address Table Size: 8K
Packet Buffer Size: 2MB

L2 Features

Auto-negotiation for port speed and duplex mode
Flow Control: IEEE 802.3x & Back-Pressure
Spanning Tree Protocol:
IEEE 802.1D Spanning Tree Protocol (STP)
IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)

VLANs:
Supports 4K IEEE 802.1Q VLANs, port-based VLANs, GVRP
Private VLAN

Link Aggregation:
Static Trunk, IEEE 802.3ad Link Aggregation Control Protocol

Trunk groups: 8
Trunk links: 2~8 for Gigabit Ethernet ports
Trunk links: 2~4 for 10 Gigabit Ethernet ports

IGMP Snooping: IGMP v1, v2 and v3* snooping and IGMP query

Layer 3 Features

2K IP Address entries
512 static routes
ARP
Multi-netting, Super-netting (CIDR)
RIPv1, RIPv2
OSPF
DVMRP*, PIM-DM*, PIM-SM*
VRRP
IPv6 hardware IP routing (future firmware upgrade)
Policy based routing
DHCP/BootP relay, DHCP server

QoS Features

Priority Queues: 8 hardware queues per port
Traffic classification based on IEEE 802.1p CoS, IP Precedence,
DSCP, TCP/UDP port number, Access Control List, Marking DiffServ
Supports WRR and Strict scheduling
Port Rate Limiting

Security

Port Security
IP Source Guard*
Supports IEEE 802.1X port-based and MAC based access control
RADIUS authentication
Access Control List
SSH

Management

Switch Management:
CLI via console port or Telnet
WEB management
SNMP v1, v2c, v3

Firmware & Configuration:
Dual firmware images
Firmware upgrade via TFTP/FTP/Xmodem server
Multiple configuration files
Configuration file upload/download via TFTP/FTP server

Supports RMON (groups 1, 2, 3 and 9)
Supports BOOTP, DHCP for IP address assignment
DHCP Snooping*
DHCP option 82*
Supports SNTP
Event/Error Log/Syslog
IPv6:

SNMP/HTTP/Telnet/SSH/ICMP/RADIUS/TACACS+/SMTP/ACL/
Dual Stack/Neighbor discover/QoS remapping

Mechanical

Dimensions (H x W x D): 4.4 x 44 x 41.5 cm (1RU)
LED Indicators: Port, Uplink, System, Diagnostic,

Environmental:

IEC 68-2-14
0°C to 50°C (Standard Operating)
-40°C to 70°C (Non-Operating)

Humidity: 5% to 95% (Non-condensing)
Vibration: IEC 68-2-36, IEC 68-2-6
Shock: IEC 68-2-29
Drop: IEC 68-2-32