LevelOne GEL-5271 是一款智慧型 52 連接埠 L2 加管理型千兆交換機，具有 48 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-5271 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。
 
 
Physical Specifications
 
Dimensions (W x D x H)
440 x 300 x 44 mm
Product weight (kg)
3.5
System specifications
 
Acoustic noise (dB)
45
Backplane (Gbps)
110
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
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
QoS Features
● Rate Limiting (Ingress/Egress Port-Based): 64 Kbps ~ 1000 Mbps, Resolution 64 Kbps
● 8 HW Queues per port
● IPv4/IPv6 DSCP

IPv6
● HTTP over IPv6
● SNMP over IPv6
● IPv4/IPv6 Dual Protocol Stack
● IPv6 Management
● IPv6 Ping/Trace
● IPv6 Telnet
● IPv6 Syslog
● IPv6 TFTP

L3 Features
● Static Routing
● RIP
Management
● Dual Image/Configuration
● Configuration upload/download (HTTP/TFTP/FTP/SFTP)
● Firmware upload/download (HTTP/TFTP/FTP/SFTP)
● System password protection
● Management Access (Console/SNMP/Web /Telnet )
● Memory Flash Log
● Event/Error Log/Syslog
● DHCP Client/DHCP Snooping(IPv4)
● DHCP Snooping Option82
● Port Mirroring (One to One) TX/RX (both)
● NTP/SNTP
● RMON
● SNMP Trap
● SNMP v1/v2c/v3
● SNMP Standard/Private MIB
Security
● Storm Control
● Broadcast/Multicast/Unknown Storm Control
● Port Isolation
● Port Mirror (One to One, One to Many)
● Remote Mirror
● IEEE 802.1X
● DDOS Protection
● CPU Guard (CPU Protection)

ACL
● Ingress Only
● L2/L3/L4
● ACL entry: 240
● IPv4
● TCP/UDP-Based, MAC-Based ACL
● AAA (RADIUS/TACACS+)