GIGAMEDIA GGM GS26L2 User manual

GIGAMEDIA User’s Guide_V2.0.7
Page 1 of 35
GGM GS26L2 L2 Managed Switch
User’s Guide
Copyright Notice
You may not replicate or copy the contents in this document by any means, without the
prior written consent from GIGAMEDIA
GIGAMEDIA provides this document without warranty of any kind, including, but not
limited to the expressed or implicated warranty on commerce, quality or particular use.
And the information in this document is subject to change without notice. GIGAMEDIA
reserves the right to make changes to this document or the products described in this
manual at any time.
For Technical Support
Address：Rue du Haut de Sainghin
CRT N°4 - CS30114 59811
LESQUIN Cedex –France
Email: suppo[email protected]om
The document number :20150422-GGM GS26L2_V2.0.7

GIGAMEDIA User’s Guide_V2.0.7
Page 2 of 35
Contents
CHAPTER 1PRODUCT INSTRUCTION............................................................................................................5
1.1 Introduction................................................................................................................................5
1.2 Front Panel..................................................................................................................................5
1.3 Rear Panel...................................................................................................................................6
CHAPTER 2PREPARATIONS BEFORE INSTRUCTION....................................................................................6
2.1 Precautions..................................................................................................................................6
2.2 Check Installation Environment................................................................................................ 6
2.3 Installation Tools ......................................................................................................................... 6
CHAPTER 3INSTALLATION........................................................................................................................ 7
3.1 Install the Switch.........................................................................................................................7
3.2 Connect the power cord and grounded cord..........................................................................7
3.3 Test after Installation ..................................................................................................................8
CHAPTER 4TECHNICAL SPECIFICATIONS ................................................................................................9
4.1 Hardware Features:....................................................................................................................9
4.2 Software Features:..................................................................................................................... 9
PART TWO WEB CONFIGURATION GUIDE......................................................................................12
CHAPTER 1USER LOGIN.........................................................................................................................12
CHAPTER 2SWITCH STATUS....................................................................................................................13
2.1 System Information...................................................................................................................13
2.2 Logging Message ..................................................................................................................... 13
2.3 Port Counters............................................................................................................................14
2.4 Aggregation State..................................................................................................................... 14
2.5 LLDP Statistics..........................................................................................................................15
2.6 IGMP Statistics.......................................................................................................................... 15
2.7 STP Statistics............................................................................................................................ 15
CHAPTER 3BASIC CONFIGURATION........................................................................................................ 16
3.1 IP Configuration ........................................................................................................................16
3.3 Account Config..........................................................................................................................17
3.3 Logging Setting......................................................................................................................... 17
3.4 Time Settings.............................................................................................................................18
3.5 Port Setting................................................................................................................................ 18
CHAPTER 4ADVANCED CONFIGURATION ...............................................................................................19
4.1 Port Mirror Configuration.........................................................................................................19
4.2 Port Aggregation.......................................................................................................................19
4.3 VLAN Management.................................................................................................................. 20
4.4 Voice VLAN ...............................................................................................................................21
4.5 Multicast Configuration ............................................................................................................ 22
4.6 IGMP Snooping Configuration................................................................................................ 23
4.7 Jumbo Frame Configuration ................................................................................................... 23
4.8 LLDP Configuration..................................................................................................................24
4.9 SNMP Configuration................................................................................................................. 24
CHAPTER 5QOSCONFIG ........................................................................................................................ 26

GIGAMEDIA User’s Guide_V2.0.7
Page 3 of 35
5.1 General.......................................................................................................................................26
5.2 QoS Basic Mode.......................................................................................................................26
5.3 Rate Limit...................................................................................................................................26
CHAPTER 6NETWORK SECURITY ...........................................................................................................27
6.1 Dynamic Learned......................................................................................................................27
6.2 Static MAC Address Table.......................................................................................................27
6.3 Port Limit Configuration...........................................................................................................28
6.4 Storm Control ............................................................................................................................ 29
6.5 Port Isolation.............................................................................................................................. 29
6.6 DoS configuration.....................................................................................................................30
6.7 STP Configuration ....................................................................................................................31
CHAPTER 7SYSTEM MAINTENANCE....................................................................................................... 32
7.1 Reboot Switch........................................................................................................................... 32
7.2 Factory Reset............................................................................................................................ 32
7.3 Firmware Upgrading.................................................................................................................33
7.4 Ping Test .................................................................................................................................... 33
7.5 Network Cable Test..................................................................................................................34
Appendix Trouble shooting ............................................................................................................35

GIGAMEDIA User’s Guide_V2.0.7
Page 4 of 35
Packaging list:
The L2 Managed Switch x1
Power Cord x1
User Guide/CD x1
Warranty card x1
Installation accessories kit x1
Please contact local reseller or distributor if any accessories are missing.

GIGAMEDIA User’s Guide_V2.0.7
Page 5 of 35
Part One Hardware Installation Guide
Chapter 1 Product Instruction
1.1 Introduction
1) GGM GS26L2 is Full Gigabit L2 Managed Switch
Please read through this User Guide before operating the GGM GS26L2 L2
Managed Switches.
1.2 Front Panel
1. GGM GS26L2
24*10/100/1000M Base-T ports, 2*1000 Base-X SFP; 1*Console port .
GGM GS26L2 Front Panel
LED Indicator Instruction
Please check the LED indicators on the left of front panel.
1) System Indicator
The System indicator is on the upper-left side of front panel, it is on when the switch
is powered. The indicator is on when switch works normally.
2) Power Indicator
Below the System indicator is the power indicator, the indicator is on when switch
works normally. If the indicator is off, please check the power supply.
3) 10/100Mbps Link/ACT Indicators
The indicators marked with numbers are yellow when the 10/100M ports
auto-negotiate connected, and the yellow indicators flash when there are data
communications through the ports.
4) 1000Mbps Link/ACT Indicators
The indicators marked with numbers are green when the 1000Mbps ports

GIGAMEDIA User’s Guide_V2.0.7
Page 6 of 35
auto-negotiate connected, and the green indicators will flash when there are data
communications through the ports.
1.3 Rear Panel
Rear Panel
Power Socket: Three-core power socket is adopted, please connect female head
of power cord to the socket, and connect the AC power supply with male head.
Chapter 2 Preparations before Instruction
2.1 Precautions
Please read the following precautions carefully before operation, to avoid damaging the
device or causing body injuries.
1). Please remove the power socket before cleaning the switch. Don’ wipe the switch with wet
cloth or wash the switch with liquid.
2). Don’t stock the device in damp environment or near water, to avoid water or moisture
penetrating into the inner device.
3). Don’t put the device on a unstable box or desk, the device will get damaged from falling.
4). Please keep good ventilation indoor, and make sure the heat dissipation function of switch
works well.
5). The switch only works normally in suitable voltage. Please check the working voltage first.
6). Please don’t open the switch enclosure randomly, especially when the switch is powered
on, there is risk of electric shock.
7). Please wear anti-static wrist strap when change the interface board, to avoid the static
electricity damage the board.
2.2 Check Installation Environment
The switch is for indoor use only, please pay attention to the following problems when install
the switch in a cabinet or put the device directly on the desktop.
1) The air vents of switch must have enough space to dissipate the heat inside enclosure.
2) A good heat dissipation system in the cabinet or on the desktop.
3) The cabinet or desktop strong enough to support the weight of switch and installation
accessories.
4) Safe ground connection for the cabinet or desktop.
2.3 Installation Tools
1) Flathead screw driver

GIGAMEDIA User’s Guide_V2.0.7
Page 7 of 35
2) Cross screw driver
3) Anti-static wrist strap
Chapter 3 Installation
3.1 Install the Switch
3.1.1 Install the switch on a 19 inch standard cabinet
1) First fix the provided two L-shaped brackets on the two sides of switch.
2) Fix the switch on the rack with screws (screws are not provided).
Cabinet Installation
3.1.2 Install the switch on the desktop
When there is no 19 inch standard cabinet, the switch is usually put on clean desktop. The
operation is easier, please follow the below instructions:
1) Keep the desktop stable and safely grounded.
2) Set aside 10cm space around switch for heat dissipation.
3) Don’t put any heavy device on the switch.
3.2 Connect the power cord and grounded cord
3.2.1 Select of AC Power Socket
The neutral one-phase 3-wire power socket is advised to adopt, or the multifunctional PC
power socket. The neutral point of power supply must be well grounded, please check the
grounded power supply before operation.
one-phase 3-wire power socket

GIGAMEDIA User’s Guide_V2.0.7
Page 8 of 35
3.2.2 Connection of AC power cord
Step one: please connect one end of power cord to the power jack on the switch rear panel,
Connect the other end to the AC power socket.
Step two: check the power indicator (PWR) on the front panel, if the LED is on, connection is
successful.
3.3 Test after Installation
Make sure the working voltage is the same with the rated voltage of switch.
Check the connection of grounded cord.
Check the connection of configuration cable and power input cord.
If the interface cable is partly deployed outdoor, please check the connection of anti-thunder
AC power strip and interface anti-thunder device .

GIGAMEDIA User’s Guide_V2.0.7
Page 9 of 35
Chapter 4 Technical Specifications
4.1 Hardware Features:
Items
GGM GS26L2
Fixed Ports
24*10/100/1000M ports;
2*Gigabit SFP ports;
1*console port
Switching Capacity
≥52Gbps
Forwarding Mode
Full wire-speed storage and forwarding
Forwarding Rate
10M：14880pps/port
100M：148809pps/port
1000M：1488095pps/port
Operation Temperature
-20~50°C
Storage Temperature
-40~70°C
Operation Humidity
10%～90%(non-condensing)
Storage Humidity
5%～95%(non-condensing)
Dimensions
440(L)x285(W)x44.5(H)mm
Input Power Supply
AC：110-240V ~ 50-60Hz
Weight
<5.5Kg
Energy Saving
Comply with “EEE” Energy Efficient Ethernet
4.2 Software Features:
Item
GGM GS26L2
Standards and Protocols
IEEE 802.3af，Power Over Ethernet
IEEE 802.3at，Power Over Ethernet Plus
IEEE 802.3u，100BASE-TX
IEEE 802.3ab，1000 BASE-T
IEEE 802.3z，1000 BASE-X
IEEE 802.3ad，Static or Dynamic Link Aggregation
IEEE 802.3x，Full-Duplex Flow Control
IEEE 802.3az，EEE(Energy Efficient Ethernet)
IEEE 802.1s，Multiple Spanning Tree Protocol
MAC Address Table
Up to 8K MAC addresses
Support auto-update, two-way learning
VLAN
Port-based VLANs\ Port-protocol-based VLANs
4K-entry Vlan Table
VLANs based on IEEE 802.1q
Spanning Tree
Support Spanning Tree Protocol
Support Rapid Spanning Tree Protocol
Link Aggregation
Support 8 aggregation groups, and a maximum of 8 ports in

GIGAMEDIA User’s Guide_V2.0.7
Page 10 of 35
each aggregation group
Port Mirroring
Support bi-direction port mirroring
RSPAN function for remote mirroring
Port Isolation
Isolation between downlink ports without influence the
communication between downlink and uplink ports
Ring Protection
Ring Protection, real-time detecting, quick alarm, precise
localization, smart blocking and auto-recovery
Traffic Control
Back-pressure traffic control under Half-Duplex mode
IEEE 802.3x traffic control under Full-Duplex mode
Port Traffic Restriction
Port-based ingress or egress rate limiting
Storm Suppression
Support the suppression of broadcast storm based on
forwarding rate
Support storm suppression based on bandwidth adjustment,
storm filtering and ACL strategy.
Multicast Control
Support IGMPv1/2/3 and MLDv1/2 Snooping;
Security
Attack Prevention(Land attack\Blat attack\Ping attack\TCP
control flag attack)
MAC & Port based Security
QOS
SP（Strict Priority）
WFQ (Weighted Fair Queuing)
WRR (Weighted Round Robin)
Weighted Random Early Detection (WRED)
Head Of Line
802.1p(Port Queuing Priority)
Differentiated Service Code Point(DSCP Priority)
IPv6
IPv6 Parsing
Physic Medium
10/100Base-TX：UTP category 3/4/5 cables( Maximum 100m)
1000Base-T：UTP Category 5 cable( Maximum 100m)
1000Base-SX：fiber with 850nm wavelength，supports a max
transmission distance of 550m
1000Base-LX：fiber with 1310nm / 1550nm wavelength，
supports a max transmission distance of 80km
Network Cable Deployment
Support Auto-MDIX function, automatically identify straight
forward cable and cross-over cable
Negotiation Pattern
Support port auto-negotiation function( automatically negotiate
transmission rate and Duplex modes)
Maintenance
Detect the connectivity of network cables
Uploading or downloading of the configuration data
Uploading of upgrade patch
Support system logs
WEB-based reset to factory defaults

GIGAMEDIA User’s Guide_V2.0.7
Page 11 of 35
Configuration & Management
WEB-based interface management
Telnet
CLI interface management
SNMP V1/2

GIGAMEDIA User’s Guide_V2.0.7
Page 12 of 35
Part Two WEB Configuration Guide
Chapter 1 User Login
GGM GS26L2 smart switch adopt Web-based interface management, the default IP is
192.168.255.1. Please make sure the IP address of PC is in the same network segment with
that of switch, or the PC can’t access to manage the switch. After the setting of IP address,
please input 192.168.255.1 in the browser to access the configuration interface of switch.
The Web management interface consists of five parts, which are switch status, basic
configuration, advanced configuration, network security, system maintenance.
Login Page
Enter user password in the above login page, the default password is admin. The system only
support single user login, other logins will be refused until the user logs out.
If IP address conflict occurs, it suggests the latest user didn’t log out successfully. Please
reboot the device or try to log in again180s later.
It is advised to reset the IP address and password in first login, and make sure the switch is
not configured in the same network segment with DHCP server or Internet Gateway device.

GIGAMEDIA User’s Guide_V2.0.7
Page 13 of 35
Chapter 2 Switch Status
2.1 System Information
System Information
Device status can be checked in the above page, which contains: Device Model
number(equipment type), PCB/HW Version, MAC Address, Serial Number(System Object ID),
Firmware Version, Firmware Updated Date, System Running Time(System Up Time).
2.2 Logging Message
Logging Message
System log can be checked in above page. Maintenance technicians can check the
history system log.

GIGAMEDIA User’s Guide_V2.0.7
Page 14 of 35
2.3Port Counters
Port Counters
The above picture shows switch port statistics. Users can check the sent/received bytes,
sent/received packets, wrongly sent/received packets. If there are too many wrong packets, it
suggests the port has very poor working performance, the user need to examine the
connection of network cable or the partner network card.
The current software version doesn’t support real-time statistics refresh, please click
“Refresh” button to get new statistics.
2.4Aggregation State
Link Aggregation
In above Link Aggregation page, user can check the port aggregation information. Like
aggregator group (LAG), link state, aggregator group member state (active/standby).

GIGAMEDIA User’s Guide_V2.0.7
Page 15 of 35
2.5LLDP Statistics
LLDP Statistics
LLDP information can be checked in above page. When enable the LLDP (Link Layer
Discovery Protocol) function, LLDP information of switch ports can be checked here.
2.6IGMP Statistics
IGMP Statistics
When the IGMP snooping function is enabled, IGMP information can be checked in
above page.
2.7STP Statistics
STP Statistics
In above STP statistics page, users can check the BPDU packets of every port and every

GIGAMEDIA User’s Guide_V2.0.7
Page 16 of 35
link aggregation STP.
Chapter 3 Basic Configuration
3.1 IP Configuration
IP configuration
The above IP address configuration page can be used to configure the IP address of
device management interface “Interface Vlan 1”. The default IP address, subnet mask
and gateway will be showed in the page. When revise the configuration, please press
“save”to confirm new configuration. Press “reset”to back to original configuration.
Above configuration need to be done under default “Static”state, if switch the IP address
mode to DHCP, IP address will be get dynamically. Please record the new IP address for
future login.
Notice: Don’t modify the subnet mask unless exceptional case, login problem will be caused by
improper modification.
3.2 Management VLAN

GIGAMEDIA User’s Guide_V2.0.7
Page 17 of 35
3.3Account Config
Account config
Login password can be revised in this page, please remember the new password for
future login.
3.3 Logging Setting
Logging Setting
System log configuration is checked in above page. Remote log server can be
configured, system log can be saved on the remote server as backup use. Enable or
disable the remote backup function in this page, “server IP address”need to be entered
manually.

GIGAMEDIA User’s Guide_V2.0.7
Page 18 of 35
3.4 Time Settings
3.5 Port Setting
Port Setting
Port Status: The user can enable or disable a port in this page. Click “Enable” to open the port,
click “Disable” to close the port, the default setting is “Enable”.
Port Mode: 6 modes can be configured: Auto-negotiation, 10 Half, 10 Full, 100 Half, 100 Full
and1000 Full. Default mode is Auto-negotiation, can be changed in pull-down list.
Flow Control: This function is defaulted closed, open it when needed.
Loop Detection: The function is defaulted closed, open it when needed. A port will be blocked
to cut the loop when loop is detected.( Notice: the port link indicator in front panel will be still
on when the port is blocked, for the physic connection is existed; while the link indicator on
the top of web management pages will be off.)

GIGAMEDIA User’s Guide_V2.0.7
Page 19 of 35
Chapter 4 Advanced Configuration
4.1 Port Mirror Configuration
Port Mirror Configuration
Users can do Port Mirror Configuration in above page. Port mirroring is used on a network
switch to send a copy of network packets or data traffic from some ports (or an entire VLAN)
to a network monitoring connection on specified switch port. The original port is called Source
Port, and the specified port is Mirroring Port. This is commonly used for network appliances
that require monitoring of network traffic without influencing the normal working of every port,
it’s a convenient online-monitoring function.
All ports have mirroring function, but only one port can be configured as Mirroring Port. In the
same system, there is only one mirroring port, while more than one Source Ports can be
existed. When a port is configured as mirroring port, its corresponding port can’t be
configured as source port.
4.2 Port Aggregation
4.2.1 Static Aggregation
Static Aggregation

GIGAMEDIA User’s Guide_V2.0.7
Page 20 of 35
Switches support 8 aggregation groups, each group contains maximum 8 ports. The
members in the same aggregation group should have same configuration for port
forwarding rate mode and VLAN distribution.
If LACP function applied for some ports, then static aggregation can’t be configured.
Notice: Static aggregation can’t be configured when LACP function enabled.
4.2.2 LACP Setting
LACP Setting
When the LACP protocol is on, the aggregated devices interactively gather information
through LACP. According to the parameters and status of each device, automatically receive
and dispatch Data of matchable link aggregation. When the Aggregation is formed, switches
keep in an aggregation link status, switches automatically adjusts link aggregation or
dissolute when configuration changes.
If the port is configured as static aggregation, the dynamic LACP will be not available.
Notice: Static aggregation LACP function can’t be used together.
4.3 VLAN Management
4.3.1 VLAN Setting
VLAN Setting
VLAN can be created or deleted in above page. Users can create a new VLAN and give