Buffalo BS-POE-G21M-EU User manual

Features and Benefits
• Layer 2
• VLAN
• SNMP support
• PoE gives small, medium, and large businesses room
to grow with easy and flexible placement:
- Devices attached to switch no longer need
to be within reach of a power outlet
- One LAN cable for both data and power
- No a/c adapter for switch itself
• Best-suited Gigabit PoE switch for IEEE802.11n
high speed wireless LAN
- All ports have Giga interface needed to
power an 11n Wireless Access Point.
- Capacity for concurrent use of 2.4GHz and
5GHz with 1000Mbps bandwidth
• PoE+ supports Network Cameras or other
devices that require high-power
- Maximum 30W*1 power supply per a port.
• Buzzer and LED loop guard
• Supported USB flash recovery eliminates
or greatly reduces down-time
• 3 year warranty certified in Japan
BS-POE-G21M-EU
BS-POE-G21M-EU
Business Networking
PoE Easy
Buffalo Technology’s new Intelligent Power over Ethernet
switches for small and medium businesses provide enough
power to run IP cameras, and wireless access points – even
power capacity for concurrent use of 2.4GHz and 5GHz with
1000Mbps bandwidth – and other power-hungry devices.
And, with a Buffalo Switch in place, network administrators can
rest assured with Buffalo’s Loop Guard warning system. A loop
occurs if there is more than one path between two endpoints –
possible causes are multiple connections between two network
switches, or, two ports on the same switch connected to each
other. With Buffalo’s new Switches the offending port from which
the loop originates is immediately shut down and the switch gives
both a buzzer and LED alert. In the past administrators might
spend a considerable amount of time detecting and locating
such a problem, but with Buffalo’s new switches detection and
location are just a blinking light and buzzing buzz away.
But best of all, Buffalo Technology’s Switches allow businesses to
gradually grow as their needs expand. PoE enables flexible placement
far from power outlets and thereby helps reduce wiring infrastructure
costs. Buffalo’s PoE switches have additional advanced features
including VLAN, and come with 8, 16, or 24 ports – all of which are PoE.
Switches

About Buffalo
Buffalo Technology is a leading global provider of award-winning storage, networking, memory, and multimedia solutions for the home and small business environments as well as for system builders and integrators. With
more than three decades of networking and computer peripheral experience, Buffalo has proven its commitment to delivering innovative solutions that have put the company at the forefront of infrastructure technology.
© Buffalo Inc. 2013. BUFFALO logo, AirStation, Nfiniti, AOSS, TeraStation, LinkStation, DriveStation, and MiniStation are either trademarks or registered trademarks of Melco Holdings Inc. or Buffalo Inc. Microsoft Windows
and Microsoft logo are either registered trademarks or trademarks of Microsoft corporation in United States and/or other countries. The names and logos of other companies mentioned herein belong to their respective
owners. The information within this datasheet is subject to change without notice. All rights reserved. E & OE.
Specifications
BS-POE-G21M-EU
130154, 03/2013
Switches
Business Networking
www.buffalo-technology.com
Compatible models IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x support equipment
Interface IEEE802.3 (10BASE-T), IEEE802.3u (100BASE-TX), IEEE802.3ab (1000BASE-T)
Transmission speed 10Mbps (10BASE-T), 100Mbps (100BASE-TX), 1000Mbps (1000BASE-T)
Data transfer method Store-and-Forward
Latency BS-POE-G2124M: 4.7µsec (store-and-forward)
BS-POE-G2116M: 4.5µsec (store-and-forward)
BS-POE-G2108M: 4.5µsec (store-and-forward)
Buffer capacity
BS-POE-G2124M: 512kbytes
BS-POE-G2116M: 512kbytes
BS-POE-G2108M: 512kbytes
Flash memory BS-POE-G2124M: 8MBytes
BS-POE-G2116M: 8MBytes
BS-POE-G2108M: 8MBytes
Main memory BS-POE-G2124M: 64Mbytes
BS-POE-G2116M: 64Mbytes
BS-POE-G2108M: 64Mbytes
Backplane Bandwidth BS-POE-G2124M: 48Gbps
BS-POE-G2116M: 32Gbps
BS-POE-G2108M: 16Gbps
Access method CSMA/CD
Data transfer rate 14,881 packets / s (10BASE-T), 148,810 packets / s (100BASE-TX),
1,488,095 packets / s (1000BASE-T)
Address table BS-POE-G2124M: 8,192 entries
BS-POE-G2116M: 8,192 entries
BS-POE-G2108M: 8,192 entries
Number of Ports BS-POE-G2124M: 10/100/1000M 24 ports (all ports Auto-MDIX function deployment)
BS-POE-G2116M: 10/100/1000M 16 ports (all ports Auto-MDIX function deployment)
BS-POE-G2108M: 10/100/1000M 8 port (all ports Auto-MDIX function deployment)
Applicable cable 10BASE-T: UTP category 3 or higher, 100BASE-TX: UTP Category 5
or higher, 1000BASE-T: UTP category 5e or better
Transmission distance Up to 100m
Terminal shape RJ-45 type 8 terminal
SNMP I and II
Console terminal RJ-45
Management function SNMP v1/v2c support
MIB II, Bridge MIB, Etherlike MIB, P-bridge MIB, Q-bridge MIB, Interface MIB,
RMON MIB, RADIUS MIB, Private MIB
RMON (Group1, 2,3,9) support (including Statistics, History, Alarm and Event)
WEB, TELNET (CLI), Console by (CLI)
Firmware upgrade function of the TFTP,
Save / restore configuration by TFTP (Console / Telnet)
Firmware upgrade function by HTTP, save / restore settings by HTTP (Web)
Syslog support transfer
SNTP support

About Buffalo
Buffalo Technology is a leading global provider of award-winning storage, networking, memory, and multimedia solutions for the home and small business environments as well as for system builders and integrators. With
more than three decades of networking and computer peripheral experience, Buffalo has proven its commitment to delivering innovative solutions that have put the company at the forefront of infrastructure technology.
© Buffalo Inc. 2013. BUFFALO logo, AirStation, Nfiniti, AOSS, TeraStation, LinkStation, DriveStation, and MiniStation are either trademarks or registered trademarks of Melco Holdings Inc. or Buffalo Inc. Microsoft Windows
and Microsoft logo are either registered trademarks or trademarks of Microsoft corporation in United States and/or other countries. The names and logos of other companies mentioned herein belong to their respective
owners. The information within this datasheet is subject to change without notice. All rights reserved. E & OE.
Specifications
BS-POE-G21M-EU
130154, 03/2013
Switches
Business Networking
www.buffalo-technology.com
Support function (Including header 14Byte + FCS4Byte) JumboFrame9, 216Byte support
Spanning Tree (IEEE802.1D/1w) support
(IEEE802.1Q) Port-based VLAN / multiple VLAN / Tag VLAN (IEEE802.1Q)
Broadcast / multicast, storm control,
QoS (port-based / IEEE802.1p/DSCP/IP Precedence 4 level)
(1-8 per-port LACP, up to 4 groups up and fixed) trunking
Port Mirroring
HOL blocking prevention
Loop prevention function
IGMP Snooping v1/v2
RADIUS server support in IEEE802.1X authentication
Transmission / destruction selection function of BPDU / EAPOL
DHCP client
SNTP client
English Web configuration interface
Security feature User name, password
IEEE802.1X authentication support port-based: MAC address-based: (EAP-MD5/TLS/MS-PEAP)
MAC address filter
Management VLAN
Web authentication
MAC address authentication
(Web interface can be accessed only from the specified IP) IP filtering function
VLAN feature VLAN-aware (VLAN group numbers: 256, VLAN IDs: 1 – 4,094),
IEEE802.1Q (VLAN Tagging)
PoE standard IEEE802.3at(PoE+) IEEE802.3af (PoE)
PoE power supply function 30W per port, maximum total PoE supplied power: 180W (BS-POE-
G2124M, BS-POE-G2116M), 150W (BS-POE-G2108M)
PoE feeding method Alternative A
Power-supply voltage 100-250V 50/60Hz
Power consumption BS-POE-G2124M: up to 266W
BS-POE-G2116M: up to 260W
BS-POE-G2108M: up to 211W
Quiescent current BS-POE-G2124M: up to 2.72A
BS-POE-G2116M: up to 2.7A
BS-POE-G2108M: up to 2.2A
Calorific value BS-POE-G2124M: maximum 957.6kJ / h
BS-POE-G2116M: maximum 936.0kJ / h
BS-POE-G2108M: maximum 759.6kJ / h
Dimensions (W × D × H) BS-POE-G2124M: 440 × 257 × 43mm
BS-POE-G2116M: 330 × 231 × 43mm
BS-POE-G2108M: 270 × 231 × 41mm
Weight BS-POE-G2124M: 4.1kg
BS-POE-G2116M: 3.0kg
BS-POE-G2108M: 2.5kg
Operating environment 0 ~ 45 ° Celsius, (non-condensing) 10-85% humidity

About Buffalo
Buffalo Technology is a leading global provider of award-winning storage, networking, memory, and multimedia solutions for the home and small business environments as well as for system builders and integrators. With
more than three decades of networking and computer peripheral experience, Buffalo has proven its commitment to delivering innovative solutions that have put the company at the forefront of infrastructure technology.
© Buffalo Inc. 2013. BUFFALO logo, AirStation, Nfiniti, AOSS, TeraStation, LinkStation, DriveStation, and MiniStation are either trademarks or registered trademarks of Melco Holdings Inc. or Buffalo Inc. Microsoft Windows
and Microsoft logo are either registered trademarks or trademarks of Microsoft corporation in United States and/or other countries. The names and logos of other companies mentioned herein belong to their respective
owners. The information within this datasheet is subject to change without notice. All rights reserved. E & OE.
Specifications
BS-POE-G21M-EU
130154, 03/2013
Switches
Business Networking
Product codes
BS-POE-G2108M-EU
BS-POE-G2116M-EU
BS-POE-G2124M-EU
www.buffalo-technology.com
Approvals VCCI class A, FCC class A
Supported Standards IEEE802.3 10Base-T/IEEE802.3u 100Base-TX/IEEE802.3ab 1000Base-T
IEEE802.3x Flow Control
IEEE802.1D Spanning Tree Protocol
IEEE802.1w Rapid Spanning Tree Protocol
IEEE802.1p Class of Service, Priority Protocol
IEEE802.1Q VLAN tagging
IEEE802.3ad Link Aggregation
IEEE802.1X Port Based Access Control
Warranty Three years
19-inch rack mount Support (mounting bracket included)
Package Contents AC cable, rubber feet, manual, 19-inch rack mounting bracket and screws, USB memory