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

SKU

GTL-2891

£2,193.97 £1,828.31

24 x 10/100/1000 Mbps, 2 x 10G SFP, 1 x RJ-45 Console, 128 MB Flash, 256 MB DRAM, 3.7 kg

Note: These items come from the EU which will take 7-10 days to be delivered

Dynamic ARP Inspection (DAI) protects switches against ARP spoofing
Supports up to 8 switches in one stack
Supports 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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Tech Specs

Network
IGMP snooping	Yes
GARP VLAN Registration Protocol (GVRP)	Yes
Networking standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ag, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3ad, IEEE 802.3ah, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Full duplex	Yes
VLAN support	Yes
Spanning tree protocol	Yes
Link aggregation	Yes
10G support	Yes
Virtual LAN features	Private VLAN, Voice VLAN, Protocol-based VLAN, MAC address-based VLAN, Port-based VLAN, IP subnet–based VLAN
Virtual LAN features
VLAN support	Yes
Virtual LAN features	Private VLAN, Voice VLAN, Protocol-based VLAN, MAC address-based VLAN, Port-based VLAN, IP subnet–based VLAN
Performance
Packet buffer memory	1.5 MB
Stackable	Yes
Physical stacking (units)	8
Mean time between failures (MTBF)	904213 h
Internal memory	256 MB
Flash memory	128 MB
Firmware upgradeable	Yes
Telnet	Yes
sFlow	Yes
Harmonized System (HS) code	85176990
Technical details
Physical stacking (units)	8
Product colour	Grey
Stackable	Yes
Mean time between failures (MTBF)	904213 h
Firmware upgradeable	Yes
Rack mounting	Yes
Telnet	Yes
Management features
Traffic classification	Yes
ARP inspection	Yes
Switch type	Managed
Quality of Service (QoS) support	Yes
Switch layer	L3
Ports & interfaces
SFP+ module slots quantity	2
Basic switching RJ-45 Ethernet ports quantity	24
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Console port	RJ-45
Data transmission
Packet buffer memory	1.5 MB
MAC address table	16000 entries
Switching capacity	128 Gbit/s
Store-and-forward	Yes
Static route	Yes
Forwarding rate	95.23 Mpps
Security
BPDU filtering/protection	Yes
Authentication	MAC-based authentication, Web-based authentication
Static port security	Yes
SSH/SSL support	Yes
IGMP snooping	Yes
Access Control List (ACL)	Yes
DoS attack prevention	Yes
DHCP features	DHCP snooping, DHCP relay
Protocols
Management protocols	CLI/WEB, Telnet/SNMP v1/v2/v3, RMON I,BOOTP/DHCP, SNTP, DNS,
Supported network protocols	IPv4/IPv6
GARP VLAN Registration Protocol (GVRP)	Yes
Certificates
Safety	UL 60950-1 & CSA 60950-1, CB IEC 60950-1 & EN 60950-1, UL/CUL
Certification	FCC, CE, VCCI Class A, WEEE, RoHS
Memory
Packet buffer memory	1.5 MB
Internal memory	256 MB
Flash memory	128 MB

Design
Country of origin	China
Safety	UL 60950-1 & CSA 60950-1, CB IEC 60950-1 & EN 60950-1, UL/CUL
Product colour	Grey
Stackable	Yes
LED indicators	Yes
Certification	FCC, CE, VCCI Class A, WEEE, RoHS
Rack mounting	Yes
Indication
LED indicators	Yes
Mobile network
GARP VLAN Registration Protocol (GVRP)	Yes
Power
Output current	1.5 A
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	35 W
Power over Ethernet (PoE)
Power over Ethernet (PoE)	No
Operational conditions
Storage temperature (T-T)	-40 - 70 °C
Storage relative humidity (H-H)	10 - 90%
Operating temperature (T-T)	0 - 45 °C
Operating relative humidity (H-H)	10 - 90%
Weight & dimensions
Width	440 mm
Depth	315 mm
Height	44 mm
Weight	3.7 kg
Packaging data
Package type	Box
Rack mount kit	Yes
Rubber feet	Yes
Resource CD	Yes
Quick start guide	Yes
Package width	590 mm
Package depth	390 mm
Package height	133 mm
Package weight	5.3 kg
Cables included	AC, LAN (RJ-45)
Logistics data
Master (outer) case width	590 mm
Master (outer) case length	390 mm
Master (outer) case height	133 mm
Master (outer) case gross weight	5.3 kg
Products per master (outer) case	1 pc(s)
Harmonized System (HS) code	85176990
Packaging content
Rack mount kit	Yes
Rubber feet	Yes
Resource CD	Yes
Quick start guide	Yes
Cables included	AC, LAN (RJ-45)
Other features
Country of origin	China

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.

Specifications

Network
IGMP snooping	Yes
GARP VLAN Registration Protocol (GVRP)	Yes
Networking standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ag, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3ad, IEEE 802.3ah, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Full duplex	Yes
VLAN support	Yes
Spanning tree protocol	Yes
Link aggregation	Yes
10G support	Yes
Virtual LAN features	Private VLAN, Voice VLAN, Protocol-based VLAN, MAC address-based VLAN, Port-based VLAN, IP subnet–based VLAN
Virtual LAN features
VLAN support	Yes
Virtual LAN features	Private VLAN, Voice VLAN, Protocol-based VLAN, MAC address-based VLAN, Port-based VLAN, IP subnet–based VLAN
Performance
Packet buffer memory	1.5 MB
Stackable	Yes
Physical stacking (units)	8
Mean time between failures (MTBF)	904213 h
Internal memory	256 MB
Flash memory	128 MB
Firmware upgradeable	Yes
Telnet	Yes
sFlow	Yes
Harmonized System (HS) code	85176990
Technical details
Physical stacking (units)	8
Product colour	Grey
Stackable	Yes
Mean time between failures (MTBF)	904213 h
Firmware upgradeable	Yes
Rack mounting	Yes
Telnet	Yes
Management features
Traffic classification	Yes
ARP inspection	Yes
Switch type	Managed
Quality of Service (QoS) support	Yes
Switch layer	L3
Ports & interfaces
SFP+ module slots quantity	2
Basic switching RJ-45 Ethernet ports quantity	24
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Console port	RJ-45
Data transmission
Packet buffer memory	1.5 MB
MAC address table	16000 entries
Switching capacity	128 Gbit/s
Store-and-forward	Yes
Static route	Yes
Forwarding rate	95.23 Mpps
Security
BPDU filtering/protection	Yes
Authentication	MAC-based authentication, Web-based authentication
Static port security	Yes
SSH/SSL support	Yes
IGMP snooping	Yes
Access Control List (ACL)	Yes
DoS attack prevention	Yes
DHCP features	DHCP snooping, DHCP relay
Protocols
Management protocols	CLI/WEB, Telnet/SNMP v1/v2/v3, RMON I,BOOTP/DHCP, SNTP, DNS,
Supported network protocols	IPv4/IPv6
GARP VLAN Registration Protocol (GVRP)	Yes
Certificates
Safety	UL 60950-1 & CSA 60950-1, CB IEC 60950-1 & EN 60950-1, UL/CUL
Certification	FCC, CE, VCCI Class A, WEEE, RoHS
Memory
Packet buffer memory	1.5 MB
Internal memory	256 MB
Flash memory	128 MB

Design
Country of origin	China
Safety	UL 60950-1 & CSA 60950-1, CB IEC 60950-1 & EN 60950-1, UL/CUL
Product colour	Grey
Stackable	Yes
LED indicators	Yes
Certification	FCC, CE, VCCI Class A, WEEE, RoHS
Rack mounting	Yes
Indication
LED indicators	Yes
Mobile network
GARP VLAN Registration Protocol (GVRP)	Yes
Power
Output current	1.5 A
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	35 W
Power over Ethernet (PoE)
Power over Ethernet (PoE)	No
Operational conditions
Storage temperature (T-T)	-40 - 70 °C
Storage relative humidity (H-H)	10 - 90%
Operating temperature (T-T)	0 - 45 °C
Operating relative humidity (H-H)	10 - 90%
Weight & dimensions
Width	440 mm
Depth	315 mm
Height	44 mm
Weight	3.7 kg
Packaging data
Package type	Box
Rack mount kit	Yes
Rubber feet	Yes
Resource CD	Yes
Quick start guide	Yes
Package width	590 mm
Package depth	390 mm
Package height	133 mm
Package weight	5.3 kg
Cables included	AC, LAN (RJ-45)
Logistics data
Master (outer) case width	590 mm
Master (outer) case length	390 mm
Master (outer) case height	133 mm
Master (outer) case gross weight	5.3 kg
Products per master (outer) case	1 pc(s)
Harmonized System (HS) code	85176990
Packaging content
Rack mount kit	Yes
Rubber feet	Yes
Resource CD	Yes
Quick start guide	Yes
Cables included	AC, LAN (RJ-45)
Other features
Country of origin	China

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SKU	GTL-2891	GSM4328PB-100NES	GSM4352PA-100NES	XSM4316S-100NES	GEP-2682	DGS-3630-28SC/SI
Manufacturer	LevelOne	Netgear	Netgear	Netgear	LevelOne	D-Link
Rack mounting	Y	N/A	Y	Y	Y	Y
Power over Ethernet (PoE)	N	Y	Y	N	Y	N
Stackable	Y	Y	Y	Y	N/A	Y
Switch type	Managed	Managed	Managed	Managed	Managed	Managed
Basic switching RJ-45 Ethernet ports quantity	22 to 24	22 to 24	46 to 48	8	22 to 24	N/A
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)	Gigabit Ethernet (10/100/1000)	Gigabit Ethernet (10/100/1000)	10G Ethernet (100/1000/10000)	Gigabit Ethernet (10/100/1000)	N