LevelOne GEL-2871 是一款智慧型 28 連接埠 L2 加管理型千兆交換機，具有 24 個 RJ45 連接埠、2 x 1GbE 和 2 x 1/2.5GbE SFP 光纖插槽，專為企業或大型工作群組連接應用而設計，具有無阻塞、線速交換效能和進階網路管理功能。
此交換器支援靈活的基於 Web 的 IPv4 和 IPv6 管理介面以及控制台、SNMP 和 Telnet 管理存取。儘管價格實惠，GEL-2871 卻配備了許多先進的功能，例如網際網路群組管理協定 (IGMP) 偵聽、基於連接埠/MAC/標籤的 VLAN、IEEE 802.1D/w/s 產生樹、存取控制清單 (ACL)、IEEE 802.3az 節能的乙太網路、連結聚合控制協定 (LACP)、IEEE QoS.
對於那些尋求以經濟高效的方式擴展網路的人來說，這是一款理想的網路解決方案。
 
Specifications
 
Dimensions (W x D x H)
440 x 245 x 44 mm
System specifications
 
Acoustic noise (dB)
less than 45 dB
Backplane (Gbps)
68
Flash memory size
512 MB
Heat dissipation
136.48 BTU/hr
Indicators
● Power
● Link/Active
Jumbo frame (KB)
10
MAC address table
16 K
Mount
19" rack mount, Desk mount
MTBF
534,057 hrs
Packet buffer
12 Mbits
Port Configuration
24x 10/100/1000 Ethernet ports (ports 1-24) , 2x 1GbE SFP Ports (ports 25-26) , 2x 1/2.5GbE SFP Ports (ports 27-28)
Power consumption
36 W
Power supply
100-240 VAC, 50-60 Hz
Power supply included
Yes
RAM size
256 MB
Standard
● IEEE 10BASE-T (IEEE 802.3)
● IEEE 100BASE-TX (IEEE 802.3u)
● IEEE 1000BASE-T (IEEE 802.3ab)
● IEEE 802.3z (1000BASE-SX/LX/LHX/ZX) Transceivers
● IEEE 802.3ad Dynamic Link Aggregation (2.5GE)
● IEEE802.3x flow control
● IEEE 802.1Q VLANs (Supports 4K)
● IEEE 802.1D Spanning Tree Protocol (STP)
● IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)
● IEEE 802.1s Multiple Rapid Spanning Tree Protocol (MSTP, 64 instances)
Features 1
 
Features
Port aggregation
● Support GE port, 2.5GE aggregation
● Support static and dynamic aggregation

VLAN
● Mac Based VLAN
● IP Based VLAN
● Protocol Based VLAN
● Support access, trunk and hybrid mode

QinQ
● Basic QinQ (Port-based QinQ)
● Flexible Q in Q(VLAN-based QinQ)
● QinQ(Flow-based QinQ)

Port mirroring
● Many to one (Port Mirroring)

Layer 2 ring network protocol
● Support STP、RSTP、MSTP
● Support G.8032 ERPS protocol，single ring, sub ring and other ring

QoS
● QoS Class, Remarking
● Support SP, WRR queue scheduling
● Ingress Port-based Rate-limit
● Egress Port-based Rate-limit
● Policy-based QoS

ACL
● IP Standard ACL
● MAC extend ACL
● IP extend ACL

Multicast
● IGMP V1,V2,V3
● IGMP snooping

ARP
● ARP table aging

DHCP
● DHCP Client
● DHCP Snooping

IPv4/IPv6
● Static routing
Management
● NTP
● LLDP
● TFTP Client
● Telnet Server
● SSH Server
● IPv6 Management
● SNMP V1/V2C/V3
● Ping、Tracert
● RMON(Remote Monitoring)alarm, event and history record
● Management Access (Console, SNMP, Web, Telnet )
● Firmware upload/download (HTTP/HTTPS/TFTP/FTP)
● Configuration upload/download (HTTP/HTTPS/TFTP/FTP)
● Support optical transceiver DDM function
● Support temperature monitoring
● Support Syslog and alarm grading
Security
● Support Dot1x，port authentication，mac authentication，RADIUS service
● Support port-security
● Support ip source guard，IP/Port/MAC binding
● Support arp-check and ARP packet filtering for illegal users