Page 2 Password : admin User also can use telnet or web to pre-configure GS-2108C with the default IP address and username/password in the first configuration. Please refer to User’ s Guide contained in CD-ROM for details on the setting of parameters. GS-2108C user’ s manual is filed under the path: \manual of the CD-ROM.
Page 5: Gigabit L2 Managed Switch
GS-2108C User's Manual 8 Gigabit L2 Managed Switch Release 3.55 © 2008, RubyTech Corporation. All rights reserved. All brand and product names are trademarks or registered trademarks of their respective companies.
Page 6 The information in this document is subject to change without notice. Unless the explicit written permission of RubyTech Corporation, this document in whole or in part shall not be replicated or modified or amended or transmitted, in any from, or by any means manual, electric, electronic, electromagnetic, mechanical, optical or otherwise for any purpose.
Page 7 DISCLAIMER. EXCEPT AS PROVIDED ABOVE, THE SOFTWARE IS PROVIDED “AS IS ” AND RUBYTECH AND ITS LICENSORS MAKE NO WARRANTIES, EXPRESS OR IMPLIED, WITH REPSECT TO THE SOFTWARE AND DOCUMENTAITON. RUBYTECH AND ITS LICENSORS DISCLAIM ALL OTHER WARRANTIES, INCLUSIVE OF WITHOUT LIMITATION, IMPLIED WARRANTIES OR MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Page 8: Table Of Contents
2-1-3-3. Switch Cascading in Topology ....................13 2-1-4. Configuring the Management Agent of GS-2108C ............17 2-1-4-1. Configuring the Management Agent of GS-2108C through the Serial RS-232 Port ....18 2-1-4-2. Configuring the Management Agent of GS-2108C through the Ethernet Port ......20 2-1-5.
Page 9: Table Of Contents
3-11-4. Tag Rule ...........................87 3-11-5. Management VLAN ......................89 3-12. MAC T ..........................90 ABLE 3-13. GVRP C ......................96 ONFIGURATION 3-14. STP C ......................102 ONFIGURATION 3-14-1. STP Status ........................102 3-14-2. STP Configuration ......................104 3-14-3. STP Port Configuration ....................106 3-15. T ....................109 RUNKING ONFIGURATION 3-16.
Page 10 Revision History Release Date Revision 0.93 06/06/2005 2.14 01/25/2006 2.14 12/07/2007 3.55 04/21/2008...
Page 11 Caution Circuit devices are sensitive to static electricity, which can damage their delicate electronics. Dry weather conditions or walking across a carpeted floor may cause you to acquire a static electrical charge. To protect your device, always: • Touch the metal chassis of your computer to ground the static electrical charge before you pick up the circuit device.
Page 13 About this user’s manual In this user’s manual, it will not only tell you how to install and connect your network system but configure and monitor the GS-2108C through the built-in CLI and web by RS-232 serial interface and Ethernet ports step-by-step. Many...
Page 14: Introduction
GS-2108C User Manual 1. Introduction 1-1. Overview of GS-2108C GS-2108C, an 8-port Gigabit L2 Managed Switch, is a standard switch that meets all IEEE 802.3/u/x/z Gigabit, Fast Ethernet specifications. The switch included 6-Port 10/100/1000Mbps TP and 2-Port Gigabit TP/SFP Fiber management Ethernet switch.
Page 15 GS-2108C User Manual • Key Features in the Device QoS: Support Quality of Service by the IEEE 802.1P standard. There are two priority queue and packet transmission schedule. Spanning Tree: Support IEEE 802.1D, IEEE 802.1w (RSTP: Rapid Spanning Tree Protocol) standards.
Page 16: C Hecklist
GS-2108C User Manual 1-2. Checklist Before you start installing the switch, verify that the package contains the following: ⎯ GS-2108C 8 Gigabit L2 Managed Switch ⎯ Modules (optional) ⎯ This User's Manual in CD-ROM ⎯ AC Power Cord ⎯ RS-232 Cable Please notify your sales representative immediately if any of the aforementioned items is missing or damaged.
Page 17 GS-2108C User Manual • Supports 802.1Q VLAN • Supports user management and limits three users to login • Maximal packet length can be up to 9208 bytes for jumbo frame application • Supports DHCP Broadcasting Suppression to avoid network suspended or crashed •...
Page 18: V Iew Of Gs-2108C
GS-2108C User Manual 1-4. View of GS-2108C Fig. 1-1 Full View of GS-2108C 1-4-1. User Interfaces on the Front Panel (Button, LEDs and Plugs) There are 8 TP Gigabit Ethernet ports and 2 SFP fiber ports for optional removable modules on the front panel of the switch. LED display area contains a Power LED, which indicates the power status and 8 ports working status of the switch.
Page 19: User Interfaces On The Rear Panel
Off when module connection is not good Table1-1 1-4-2. User Interfaces on the Rear Panel One RS-232 DB-9 interface is offered for configuration or management. AC Line 100-240V 50/60 Hz RS-232 DB-9 Connector Fig. 1-3 Rear View of GS-2108C Publication date: April, 2008 Revision A4...
Page 20: V Iew Of The O Ptional M Odules
GS-2108C User Manual 1-5. View of the Optional Modules In the switch, Port 7~8 includes two types of media --- TP and SFP Fiber (LC, BiDi LC…); this port supports 10/100/1000Mbps TP or 1000Mbps SFP Fiber with auto-detected function. 1000Mbps SFP Fiber transceiver is used for high-speed connection expansion;...
Page 21: Installation
⇒ Be sure that power switch is OFF before you insert the power cord to power source • Installing Optional SFP Fiber Transceivers to the GS-2108C Note: If you have no modules, please skip this section. Fig. 2-1 Installation of Optional SFP Fiber Transceiver •...
Page 22 GS-2108C User Manual • TP Port and Cable Installation ⇒ In the switch, TP port supports MDI/MDI-X auto-crossover, so both types of cable, straight-through (Cable pin-outs for RJ-45 jack 1, 2, 3, 6 to 1, 2, 3, 6 in 10/100M TP; 1, 2, 3, 4, 5, 6, 7, 8 to 1, 2, 3, 4, 5, 6, 7, 8 in Gigabit TP) and crossed-over (Cable pin-outs for RJ-45 jack 1, 2, 3, 6 to 3, 6, 1, 2) can be used.
Page 23: Installing Chassis To A 19-Inch Wiring Closet Rail
GS-2108C User Manual 2-1-2. Installing Chassis to a 19-Inch Wiring Closet Rail Fig. 2-2 Caution: Allow a proper spacing and proper air ventilation for the cooling fan at both sides of the chassis. ⇒ Wear a grounding device for electrostatic discharge.
Page 24: Cabling Requirements For Tp Ports
GS-2108C User Manual 2-1-3-1. Cabling Requirements for TP Ports ⇒ For Fast Ethernet TP network connection ⎯ The grade of the cable must be Cat. 5 or Cat. 5e with a maximum length of 100 meters. ⇒ Gigabit Ethernet TP network connection ⎯...
Page 25: Switch Cascading In Topology
GS-2108C User Manual 2-1-3-3. Switch Cascading in Topology • Takes the Delay Time into Account Theoretically, the switch partitions the collision domain for each port in switch cascading that you may up-link the switches unlimitedly. In practice, the network extension (cascading levels & overall diameter) must follow the constraint of the IEEE 802.3/802.3u/802.3z and other 802.1 series protocol specifications, in which...
Page 26 GS-2108C User Manual Case1: All switch ports are in the same local area network. Every port can access each other (See Fig. 2-3). Fig. 2-3 No VLAN Configuration Diagram If VLAN is enabled and configured, each node in the network that can communicate each other directly is bounded in the same VLAN area.
Page 27 GS-2108C User Manual Case 2b: Port-based VLAN (See Fig.2-5). Fig. 2-5 Port-based VLAN Diagram 1. VLAN1 members could not access VLAN2, VLAN3 and VLAN4 members. 2. VLAN2 members could not access VLAN1 and VLAN3 members, but they could access VLAN4 members.
Page 28 GS-2108C User Manual Publication date: April, 2008 Revision A4...
Page 29: Configuring The Management Agent Of Gs-2108C
RS-232 console, CLI, and Web. Users can use any one of them to monitor and configure the switch. You can touch them through the following procedures. Section 2-1-4-1: Configuring the Management Agent of GS-2108C through the Serial RS-232 Port...
Page 30: Configuring The Management Agent Of Gs-2108C Through The Serial Rs-232 Port
GS-2108C User Manual 2-1-4-1. Configuring the Management Agent of GS-2108C through the Serial RS-232 Port To perform the configuration through RS-232 console port, the switch’s serial port must be directly connected to a DCE device, for example, a PC, through RS-232 cable with DB-9 connector.
Page 31 GS-2108C User Manual • Set IP Address, Subnet Mask and Default Gateway IP Address Please refer to Fig. 2-7 CLI Management for details about Rubytech’s setting. They are default setting of IP address. You can first either configure your PC IP address or change IP address of the switch, next to change the IP address of default gateway and subnet mask.
Page 32: Configuring The Management Agent Of Gs-2108C Through The Ethernet Port
GS-2108C User Manual 2-1-4-2. Configuring the Management Agent of GS-2108C through the Ethernet Port There are three ways to configure and monitor the switch through the switch’s Ethernet port. They are CLI, Web browser and SNMP manager. The user interface for the last one is NMS dependent and does not cover here. We just introduce the first two types of management interface.
Page 33: Ip Address Assignment
GS-2108C User Manual Fig. 2-10 the Login Screen for Web 2-1-5. IP Address Assignment For IP address configuration, there are three parameters needed to be filled in. They are IP address, Subnet Mask, Default Gateway and DNS. IP address: The address of the network device in the network is used for internetworking communication.
Page 34 GS-2108C User Manual With the classful addressing, it divides IP address into three classes, class A, class B and class C. The rest of IP addresses are for multicast and broadcast. The bit length of the network prefix is the same as that of the subnet mask and is denoted as IP address/X, for example, 192.168.1.0/24.
Page 35 GS-2108C User Manual Class D and E: Class D is a class with first 4 MSB (Most significance bit) set to 1-1-1-0 and is used for IP Multicast. See also RFC 1112. Class E is a class with first 4 MSB set to 1-1-1-1 and is used for IP broadcast.
Page 36 GS-2108C User Manual In this diagram, you can see the subnet mask with 25-bit long, 255.255.255.128, contains 126 members in the sub-netted network. Another is that the length of network prefix equals the number of the bit with 1s in that subnet mask.
Page 37 GS-2108C User Manual For different network applications, the subnet mask may look like 255.255.255.240. This means it is a small network accommodating a maximum of 15 nodes in the network. Default gateway: For the routed packet, if the destination is not in the routing table, all the traffic is put into the device with the designated IP address, known as default router.
Page 38: T Ypical A Pplications
GS-2108C User Manual 2-2. Typical Applications The GS-2108C implements 8 Gigabit Ethernet TP ports with auto MDIX and two slots for the removable module supporting comprehensive fiber types of connection, including LC and BiDi-LC SFP modules. For more details on the specification of the switch, please refer to Appendix A.
Page 39 GS-2108C User Manual Fig. 2-14 Peer-to-peer Network Connection Fig. 2-15 Office Network Connection Publication date: April, 2008 Revision A4...
Page 40: Operation Of Web-Based Management
GS-2108C User Manual 3. Operation of Web-based Management This chapter instructs you how to configure and manage the switch through the web user interface it supports, to access and manage the 6-Port 10/100/1000Mbps TP and 2-Port Gigabit TP/SFP Fiber management Ethernet switch.
Page 41 GS-2108C User Manual In the switch, it supports a simple user management function allowing only one administrator to configure the system at the same time. If there are two or more users using administrator’s identity, the switch will allow the only one who logins first to configure the system.
Page 42: W Eb M Anagement H Ome O Verview
GS-2108C User Manual 3-1. Web Management Home Overview After you login, the switch shows you the system information as Fig. 3-2. This page is default and tells you the basic information of the system, including “Model Name”, “System Description”, “Location”, “Contact”, “Device Name”, “System Up Time”, “Current Time”, “BIOS Version”, “Firmware Version”, “Hardware-Mechanical...
Page 43 GS-2108C User Manual • The Information of Page Layout ⎯ On the top side, it shows the front panel of the switch. In the front panel, the linked ports will display green; as to the ports, which are link off, they will be dark.
Page 44 GS-2108C User Manual Root System Port Mirror Bandwidth Loop Detectio SNMP IGMP Snooping Max. Packet Length DHCP Boot VLAN MAC Table GVRP Trunk 802.1x Alarm Configuration Diagnostics TFTP Server Firmware Upgrade Reboot Logout Publication date: April, 2008 Revision A4...
Page 45: System Information
You can configure this parameter through the device’s user interface or SNMP. Device name: The name of the switch. User-defined. Default is GS-2108C. System up time: The time accumulated since this switch is powered up. Its format is day, hour, minute, second.
Page 46 GS-2108C User Manual Host IP address: The IP address of the switch. Host MAC address: It is the Ethernet MAC address of the management agent in this switch. Device Port: Show all types and numbers of the port in the switch.
Page 47: Ip Configuration
GS-2108C User Manual 3-1-2. IP Configuration IP configuration is one of the most important configurations in the switch. Without the proper setting, network manager will not be able to manage or view the device. The switch supports both manual IP address setting and automatic IP address setting via DHCP server.
Page 48 GS-2108C User Manual IP address: Users can configure the IP settings and fill in new values if users set the DHCP function “Disable”. Then, click <Apply> button to update. When DHCP is disabled, Default: 192.168.1.1 If DHCP is enabled, this field is filled by DHCP server and will not allow user manually set it any more.
Page 49 GS-2108C User Manual DNS: It is Domain Name Server used to serve the translation between IP address and name address. The switch supports DNS client function to re-route the mnemonic name address to DNS server to get its associated IP address for accessing Internet.
Page 50: Time Configuration
GS-2108C User Manual 3-1-3. Time Configuration The switch provides manual and automatic ways to set the system time via NTP. Manual setting is simple and you just input “Year”, “Month”, “Day”, “Hour”, “Minute” and “Second” within the valid value range indicated in each item. If you...
Page 51 GS-2108C User Manual NTP: NTP is Network Time Protocol and is used to sync the network time based Greenwich Mean Time (GMT). If use the NTP mode and select a built-in NTP time server or manually specify an user-defined NTP server as well as Time Zone, the switch will sync the time in a short after pressing <Apply>...
Page 52 GS-2108C User Manual Day Light Saving End : This is used to set when to stop performing the daylight saving time. Mth: Range is 1 ~ 12. Default: 1 Day: Range is 1 ~ 31. Default: 1 Hour: Range is 0 ~ 23.
Page 53: Account Configuration
GS-2108C User Manual 3-1-4. Account Configuration In this function, only administrator can create, modify or delete the username and password. Administrator can modify other guest identities’ password without confirming the password but it is necessary to modify the administrator-equivalent identity. Guest-equivalent identity can modify his password only. Please note that you must confirm administrator/guest identity in the field of Authorization in advance before configuring the username and password.
Page 54: Management Policy
3-1-5. Management Policy Through the management security configuration, the manager can do the strict setup to control the GS-2108C and limit the user to access this switch. The following rules are offered for the manager to manage the GS-2108C: Rule 1) : When no lists exists, then it will accept all connections.
Page 55 GS-2108C, for example, we can decide that which VLAN VID is able to be accepted or denied by GS-2108C, the IP range of the user could be accepted or denied by GS-2108C, the port that the user is allowed or not allowed to connect with GS-2108C, or the way of controlling and connecting to GS-2108C via Http, Telnet or SNMP.
Page 56 GS-2108C supports two kinds of options for managed valid Access Type including “Any” and “Custom”. Default is “Any”. “Http”, “Telnet” and “SNMP” are three ways for the access and managing the GS-2108C in case that” Custom” had been chosen. Action:...
Page 57: Virtual Stack
GS-2108C User Manual 3-1-6. Virtual Stack Function name: Virtual Stack Function description: Virtual Stack Management(VSM) is the group management function. Through the proper configuration of this function, switches in the same LAN will be grouped automatically. And among these switch, one switch will be a master machine, and the others in this group will become the slave devices.
Page 58 GS-2108C User Manual Fig. 3-8 Parameter description: State: It is used for the activation or de-activation of VSM. Default is Enable. Role: The role that the switch would like to play in virtual stack. Two types of roles, including master and slave are offered for option. Default is Master.
Page 59: P Ort C Onfiguration
GS-2108C User Manual 3-2. Port Configuration Four functions, including Port Status, Port Configuration, Simple Counter and Detail Counter are contained in this function folder for port monitor and management. Each of them will be described in detail orderly in the following sections.
Page 60 GS-2108C User Manual Function name: Port Status Function Description: Report the latest updated status of all ports in this switch. When any one of the ports in the switch changes its parameter displayed in the page, it will be automatically refreshed the port current status about every 5 seconds.
Page 61 GS-2108C User Manual Speed / Duplex Mode: Display the speed and duplex of all port. There are three speeds 10Mbps, 100Mbps and 1000Mbps supported for TP media, and the duplex supported is half duplex and full duplex. If the media is 1Gbps fiber, it is 1000Mbps supported only.
Page 62 GS-2108C User Manual Fig. 3-10 Parameter description of Port 7 and Port 8: Connector Type: Display the connector type, for instance, UTP, SC, ST, LC and so Fiber Type: Display the fiber mode, for instance, Multi-Mode, Single-Mode. Tx Central Wavelength: Display the fiber optical transmitting central wavelength, for instance, 850nm, 1310nm, 1550nm and so on.
Page 63 GS-2108C User Manual Vendor SN (Serial Number): Show the serial number assigned by the manufacturer. Date Code: Show the date this SFP module was made. Temperature: Show the current temperature of SFP module. Vcc: Show the working DC voltage of SFP module.
Page 64: Port Configuration
GS-2108C User Manual 3-2-2. Port Configuration Port Configuration is applied to change the setting of each port. In this configuration function, you can set/reset the following functions. All of them are described in detail below. Fig. 3-11 Function name: Port Configuration Function description: It is used to set each port’s operation mode.
Page 65 GS-2108C User Manual Mode: Set the speed and duplex of the port. In speed, if the media is 1Gbps fiber, it is always 1000Mbps and the duplex is full only. If the media is TP, the Speed/Duplex is comprised of the combination of speed mode, 10/100/1000Mbps, and duplex mode, full duplex and half duplex.
Page 66: Description
GS-2108C User Manual 3-2-3. Description The function of Port description provides the port description to help administrator to management the port easily. In the Fig. 3-13, the window can show all ports’ description information at the same time. Fig. 3-12...
Page 67: Simple Counter
3-2-4. Simple Counter The function of Simple Counter collects any information and provides the counting about the traffic of the port, no matter the packet is good or bad. In the Fig. 3-14, the window can show all ports’ counter information at the same time.
Page 68 GS-2108C User Manual Rx Packet: The counting number of the packet received. Tx Collision: Number of collisions transmitting frames experienced. Rx Error Packet: Number of bad packets received. Publication date: April, 2008 Revision A4...
Page 69: Detail Counter
GS-2108C User Manual 3-2-5. Detail Counter The function of Detail Counter collects any information and provides the counting about the traffic of the port, no matter the packet is good or bad. In the Fig. 3-14, the window can show only one port counter information at the same time.
Page 70 GS-2108C User Manual Rx Low Priority Packets: Number of Rx packets classified as low priority. Rx Broadcast: Show the counting number of the received broadcast packet. Rx Multicast: Show the counting number of the received multicast packet. Tx Packets: The counting number of the packet transmitted.
Page 71 GS-2108C User Manual Tx 65-127 Bytes: Number of 65 ~ 126-byte frames in good and bad packets transmitted. Tx 128-255 Bytes: Number of 127 ~ 255-byte frames in good and bad packets transmitted. Tx 256-511 Bytes: Number of 256 ~ 511-byte frames in good and bad packets transmitted.
Page 72: M Irror
GS-2108C User Manual 3-3. Mirror Function name: Mirror Configuration Function description: Mirror Configuration is to monitor the traffic of the network. For example, we assume that Port A and Port B are Monitoring Port and Monitored Port respectively, thus, the traffic received by Port B will be copied to Port A for monitoring.
Page 73: B Andwidth M Anagement
GS-2108C User Manual 3-4. Bandwidth Management Function name: Bandwidth Management Function description: Bandwidth Management function is used to set up the limit of Ingress and Egress bandwidth for each port. Note: Each port of the switch owns 16KB packet buffer. The packet buffer size will...
Page 74 GS-2108C User Manual Broadcast & Multicasat for Ingress Rate Limiting (Policing): Set up the limit of Ingress bandwidth for the port you choose. Incoming traffic will be discarded if the rate exceeds the value you set up in Data Rate field. The format of the packet limits to broadcast and multicast.
Page 75: Q O S(Q Uality Of S Ervice ) C Onfiguration
GS-2108C User Manual 3-5. QoS(Quality of Service) Configuration offers powerful 5 kinds of QoS functions. There are Per Port switch Priority that you can assign each port to different precedence, VLAN Tag priority that can make precedence of 8 priorities, IP TOS Classification, IP TCP/UDP Port Classification and IP DiffServe Classification.
Page 76 GS-2108C User Manual Fig. 3-18 Function name: VLAN Tag Priority Function description: In vlan tag, there are 3 bits belonging to priority. According to these 3 bits, we could arrange 8 traffics –0 0 0, 0 0 1, 0 1 0, 0 1 1, 1 0 0, 1 0 1, 1 1 0, 1 1 1. We can set High priority or Low priority for each traffic class.
Page 77 GS-2108C User Manual Parameter description: Quality of Service (QoS) Vlan Tag Configuration: Used for setting up the QoS belongs to Vlan operation. Port: User can set up the port (1~8) respectively to let Vlan Tag QoS function work on them. If you would like to set up all ports at a time, user is also allowed to choose “All”...
Page 78 GS-2108C User Manual Fig. 3-20 Parameter description: Quality of Service (QoS) ToS Configuration: Used for setting up the QoS in Layer 3. Port: User can set up the port (1~8) respectively to let TOS QoS function work on them. If you would like to set up all ports at a time, user is also allowed to choose “All”...
Page 79 GS-2108C User Manual Function name: IP TCP/UDP Port Classification Function description: In L4 QoS Configuration, you can enter one of these special network transmission events, for example we use” Down prioritize web browsing, e-mail, FTP and news “L4 QoS Configuration and click <Apply> button, and then click <Advance >>>...
Page 80 GS-2108C User Manual Prioritize Streaming Audio/Video: Belong to the QoS in L4. Just tick the option button and press <Apply> < button to have this function taken affect. Then, click Advance >>> button set up Special TCP/UDP port for QoS.
Page 81 GS-2108C User Manual Advanced Mode Fig. 3-21 Simple Mode Fig. 3-22 Simple Mode: Press <Simple<<> button is to return to the screen that all L4 port number will disappear (See Fig. 3-22). Publication date: April, 2008 Revision A4...
Page 82 GS-2108C User Manual Function name: IP Diffserv Classification Function description: In the late 1990s, the IETF redefined the meaning of the 8-bit SERVICE TYPE field to accommodate a set of differentiated services (DS). Under the differentiated services interpretation, the first six bits comprise a codepoint, which is sometimes abbreviated DSCP, and the last two bits are left unused.
Page 83: L Oop D Etection
GS-2108C User Manual 3-6. Loop Detection The loop detection is used to detect the presence of traffic. When switch receives packet’s(looping detection frame) MAC address the same as oneself from port, show Loop detection happens. The port will be locked when it received the looping detection frames.
Page 84 GS-2108C User Manual happening in real networking environment. After any setting you done, please click the <Apply> button to have the setting taken effect. When looping has already happened, we suggest that the users could choose the looping port as “Enable”...
Page 85: Snmp C Onfiguration
3-7. SNMP Configuration Any Network Management System (NMS) running the Simple Network Management Protocol (SNMP) can manage the Managed devices equipped with SNMP agent, provided that the Management Information Base (MIB) is installed correctly on the managed devices. The SNMP is a protocol that is used to govern the transfer of information between SNMP manager and agent and traverses the Object Identity (OID) of the management Information Base (MIB), described in the form of SMI syntax.
Page 86 GS-2108C User Manual Default SNMP function : Enable Default community name for GET: public Default community name for SET: private Default community name for Trap: public Default Set function : Enable Default trap host IP address: 0.0.0.0 Default port number :162 Trap: In the switch, there are 6 trap hosts supported.
Page 87: Igmp S Nooping
GS-2108C User Manual 3-8. IGMP Snooping The function, IGMP Snooping, is used to establish the multicast groups to forward the multicast packet to the member ports, and, in nature, avoids wasting the bandwidth while IP multicast packets are running over the network. This is because...
Page 88 GS-2108C User Manual Parameter description: IGMP snooping mode selection: The switch supports three kinds of IGMP Snooping status, including “Passive”, “Active” and “Disable”. Disable: Set “Disable” mode to disable IGMP Snooping function. Default: Disable Active: In Active mode, IGMP snooping switch will periodically issue the...
Page 89 Function name: IGMP Snooping Allowed Group Function description: IGMP Snooping Allowed Group is used to snoop the status of IP multicast groups and display its associated information in both tagged VLAN and non- tagged VLAN networks. Enabling IGMP with either passive or active mode, you can monitor the IGMP snooping information, which contains the multicast member list with the multicast groups, VID and member port.
Page 90: Max. Packet Length
GS-2108C User Manual 3-9. Max. Packet Length Function name: Max. Packet Length Function description: The switch is capable of dealing with 9k Jumbo Frames, which suits the transmission for a large amount of data in the network environment. Parameter description:...
Page 91: Dhcp B Oot
GS-2108C User Manual 3-10. DHCP Boot The DHCP Boot function is used to spread the request broadcast packet into a bigger time frame to prevent the traffic congestion due to broadcast packets from many network devices which may seek its NMS, boot server, DHCP server and many connections predefined when the whole building or block lose the power and then reboot and recover.
Page 92: Vlan
GS-2108C User Manual 3-11. VLAN The switch supports Tag-based VLAN (802.1q) and Port-based VLAN Support 256 active VLANs and VLAN ID 1~4094. VLAN configuration is used to partition your LAN into small ones as your demand. Properly configuring it, you can gain not only improving security and increasing performance but greatly reducing VLAN management.
Page 93 GS-2108C User Manual Metro Mode: The Metro Mode is a quick configuration VLAN environment method on Port-based VLAN. It will create 6 or 7 Port-based VLAN groups. Double-tag: Double-tag mode belongs to the tag-based mode, however, it would treat all frames as the untagged ones, which means that tag with PVID will be added into all packets.
Page 94 GS-2108C User Manual Fig. 3-32 Publication date: April, 2008 Revision A4...
Page 95: Tag-Based Group
GS-2108C User Manual 3-11-2. Tag-based Group Function name: Tag-based Group Configuration Function description: It shows the information of existed Tag-based VLAN Groups, You can also easily create, edit and delete a Tag-based VLAN group by pressing <Add>, <Edit> and <Delete> function buttons. User can add a new VLAN group by inputting a new VLAN name and VLAN ID.
Page 96 GS-2108C User Manual Add Group: Create a new Tag-based VLAN. Input the VLAN name as well as VID, configure the SYM-VLAN function and choose the member by ticking the check box beside the port No., then, press the <Apply> button to have the setting taken effect.
Page 97: Port-Based Group
GS-2108C User Manual 3-11-3. Port-based Group Function name: Port-based Group Configuration Function description: It shows the information of the existed Port-based VLAN Groups. You can easily create, edit and delete a Port-based VLAN group by pressing <Add>, <Edit> and <Delete> function buttons. User can add a new VLAN group by inputting a new VLAN name.
Page 98 GS-2108C User Manual Fig. 3-37 Delete Group: Just press the <Delete> button to remove the selected group entry from the Port-based group table. Fig. 3-38 Edit a group: Just select a group entry and press the <Edit> button, then you can modify a group‘s description and member set.
Page 99: Tag Rule
GS-2108C User Manual 3-11-4. Tag Rule Function name: Tag Rule Function description: In VLAN Tag Rule Setting, user can input VID number to each port. The range of VID number is from 1 to 4094. User also can choose ingress filtering rules to each port.
Page 100 GS-2108C User Manual Role: This is an egress rule of the port. Here you can choose Access, Trunk or Hybrid. Trunk means the outgoing packets must carry VLAN tag header. Access means the outgoing packets carry no VLAN tag header. If packets have double VLAN tags, one will be dropped and the other will still be left.
Page 101: Management Vlan
3-11-5. Management VLAN Function name: Management VLAN Function description: In Management VLAN Setting, user can input VID number. The range of VID number is from 1 to 4094. Fig. 3-40 Parameter description: State: It works when the tag-based mode is chosen. When this function is enabled, only the tagged packets with this VID can manage the switch.
Page 102: Mac T Able
3-12. MAC Table MAC Table Configuration gathers many functions, including MAC Table Information, MAC Table Maintenance, Static Forward, Static Filter and MAC Alias, which cannot be categorized to some function type. They are described below. Function name: MAC Table Information Function Description: Display the static or dynamic learning MAC entry and the state for the selected port.
Page 103 GS-2108C User Manual Port: The port that exists in the searched MAC Entry. VID: VLAN Group that MAC Entry exists. State: Display the method that this MAC Entry is built. It may show “Dynamic MAC” or “Static MAC”. Fig. 3-41...
Page 104 GS-2108C User Manual Function Name: MAC Table Maintenance Function Description: This function can allow the user to set up the processing mechanism of MAC Table. An idle MAC address exceeding MAC Address Age-out Time will be removed from the MAC Table. The range of Age-out Time is 10-65535 seconds, and the setup of this time will have no effect on static MAC addresses.
Page 105 GS-2108C User Manual Function Name: Static Forward Function Description: Static Forward is a function that allows the user in the static forward table to access a specified port of the switch. Static Forward table associated with a specified port of a switch is set up by manually inputting MAC address and its alias name.
Page 106 GS-2108C User Manual Function name: Static Filter Function Description: Static Filter is a function that denies the packet forwarding if the packet’s MAC Address is listed in the filtering Static Filter table. User can very easily maintain the table by filling in MAC Address, VID (VLAN ID) and Alias fields individually.
Page 107 GS-2108C User Manual Function name: MAC Alias Create/ Edit or Delete Function description: In the MAC Alias function, MAC Alias Add/Edit function is used to let you add or modify an association between MAC address and a plain English name.
Page 108: Gvrp C Onfiguration
GS-2108C User Manual 3-13. GVRP Configuration GVRP is an application based on Generic Attribute Registration Protocol (GARP), mainly used to automatically and dynamically maintain the group membership information of the VLANs. The GVRP offers the function providing the VLAN registration service through a GARP application. It makes use of GARP...
Page 109 GS-2108C User Manual Used to declare the Join Time in unit of centisecond. Valid time range: 20 –100 centisecond, Default: 20 centisecond. Leave Time: Used to declare the Leave Time in unit of centisecond. Valid time range: 60 –300 centisecond, Default: 60 centisecond.
Page 110 GS-2108C User Manual In this mode, the switch dynamic VLAN will be created when this port received GVRP PDU. The default setting is Normal. Enabled: In this mode, the switch does not create dynamic VLAN when this port received GVRP PDU. Except received dynamic...
Page 111 GS-2108C User Manual Function name: GVRP Counter Function description: All GVRP counters are mainly divided into Received and Transmitted two categories to let you monitor the GVRP actions. Actually, they are GARP packets. Fig. 3-47 Parameter description: Received: Total GVRP Packets: Total GVRP BPDU is received by the GVRP application.
Page 112 GS-2108C User Manual GARP application. Transmitted: Total GVRP Packets: Total GARP BPDU is transmitted by the GVRP application. Invalid GVRP Packets: Number of invalid GARP BPDU is transmitted by the GVRP application. LeaveAll Message Packets: Number of GARP BPDU with Leave All message is transmitted by the GARP application.
Page 113 GS-2108C User Manual Function name: GVRP Group Information Function description: To show the dynamic group member and their information. Parameter description: VID: VLAN identifier. When GVRP group creates, each dynamic VLAN group owns its VID. Valid range is 1 ~ 4094.
Page 114: Stp C Onfiguration
GS-2108C User Manual 3-14. STP Configuration The Spanning Tree Protocol (STP) is a standardized method (IEEE 802.1D) for avoiding loops in switched networks. When STP is enabled, ensure that only one path is active between any two nodes on the network at a time. User can enable Spanning Tree Protocol on switch’s web management and then set up other...
Page 115 GS-2108C User Manual All bridges in the LAN will re-learn and determine which the root bridge is. Maximum Age time is assigned by root bridge in unit of seconds. Default is 20 seconds. Current Forward Delay: Show the current root bridge forward delay time. The value of Forward Delay time is set by root.
Page 116: Stp Configuration
If you want to have the GS-2108C as root bridge, you can set this value lower than that of bridge in the LAN. The valid value is 0 ~ 61440. The default is 32768.
Page 117 GS-2108C User Manual Forward Delay: You can set the root bridge forward delay time. This figure is set by root bridge only. The forward delay time is defined as the time spent from Listening state moved to Learning state and also from Learning state moved to Forwarding state of a port in bridge.
Page 118: Stp Port Configuration
GS-2108C User Manual 3-14-3. STP Port Configuration Function name: STP Port Setting Function description: In the STP Port Setting, one item selection and five parameters settings are offered for user’s setup. User can disable and enable each port by selecting each Port Status item.
Page 119 GS-2108C User Manual 802.1w RSTP recommended value: (Valid range: 1 – 200,000,000) 10 Mbps : 2,000,000 100 Mbps : 200,000 1 Gbps : 20,000 Default: 0 Priority: Priority here means Port Priority. Port Priority and Port Number are mixed to form the Port ID. Port IDs are often compared in order to determine which port of a bridge would become the Root Port.
Page 120 GS-2108C User Manual M Check: Migration Check. It forces the port sending out an RSTP BPDU instead of a legacy STP BPDU at the next transmission. The only benefit of this operation is to make the port quickly get back to act as an RSTP port.
Page 121: T Runking C Onfiguration
GS-2108C User Manual 3-15. Trunking Configuration The Port Trunking Configuration is used to configure the settings of Link Aggregation. You can bundle more than one port with the same speed, full duplex and the same MAC to be a single logical port, thus the logical port aggregates the bandwidth of these ports.
Page 122 GS-2108C User Manual Per Trunking Group supports a maximum of 12 ready member-ports. Please note that some decisions will automatically be made by the system while you are configuring your trunking ports. Some configuration examples are listed below: 12 ports have already used Static Trunk Group ID 1, the 13th port willing to use the same Static Trunk Group ID will be automatically set to use the “None”...
Page 123 GS-2108C User Manual Function name: Port Setting/Status Function description: Port setting/status is used to configure the trunk property of each and every port in the switch system. Parameter description: Method: This determines the method a port uses to aggregate with other ports.
Page 124 GS-2108C User Manual Aggtr: Aggtr is an abbreviation of “aggregator”. Every port is also an aggregator, and its own aggregator ID is the same as its own Port No. We can regard an aggregator as a representative of a trunking group. Ports with same Group ID and using same trunking method will have the opportunity to aggregate to a particular aggregator port.
Page 125 GS-2108C User Manual Function name: Aggregator View Function description: To display the current port trunking information from the aggregator point of view. Parameter description: Aggregator: It shows the aggregator ID (from 1 to 8) of every port. In fact, every port is also an aggregator, and its own aggregator ID is the same as its own Port No..
Page 126 GS-2108C User Manual Function name: LACP Detail (LACP Aggregator Detailed Information) Function description: Show the detailed information of the LACP trunking group. Parameter description: Actor: The switch you are watching on. Partner: The peer system from this aggregator’s view. System Priority: Show the System Priority part of a system ID.
Page 127 GS-2108C User Manual Function name: LACP System Priority Function description: It is used to set the priority part of the LACP system ID. LACP will only aggregate together the ports whose peer link partners are all on a single system. Each system supports LACP will be assigned a globally unique System Identifier for this purpose.
Page 128: X C Onfiguration
GS-2108C User Manual 3-16. 802.1x Configuration 802.1x port-based network access control provides a method to restrict users to access network resources via authenticating user’s information. This restricts users from gaining access to the network resources through a 802.1x-enabled port without authentication. If a user wishes to touch the network through a port under 802.1x control, he (she) must firstly input his (her) account name for authentication...
Page 129 GS-2108C User Manual The overview of operation flow for the Fig. 3-52 is quite simple. When Supplicant PAE issues a request to Authenticator PAE, Authenticator and Supplicant exchanges authentication message. Then, Authenticator passes the request to RADIUS server to verify. Finally, RADIUS server replies if the request is granted or denied.
Page 130 GS-2108C User Manual Authentication server Fig. 3-57 Authenticator Supplicant A The Fig. 3-54 shows the procedure of 802.1x authentication. There are steps for the login based on 802.1x port access control management. The protocol used in the right side is EAPOL and the left side is EAP.
Page 131 GS-2108C User Manual If user ID and password is correct, the authentication server will send a Radius-Access-Accept to the authenticator. If not correct, the authentication server will send a Radius-Access-Reject. When the authenticator PAE receives a Radius-Access-Accept, it will send an EAP-Success to the supplicant. At this time, the supplicant is authorized and the port connected to the supplicant and under 802.1x control is in the authorized state.
Page 132 GS-2108C User Manual Only MultiHost 802.1X is the type of authentication supported in the switch. In this mode, for the devices connected to this port, once a supplicant is authorized, the devices connected to this port can access the network resource through this port.
Page 133 GS-2108C User Manual Function name: 802.1x State Setting Function description: This function is used to configure the global parameters for RADIUS authentication in 802.1x port security application. Parameter description: Radius Server: RADIUS server IP address for authentication. Default: 192.168.1.1 Port Number: The port number to communicate with RADIUS server for the authentication service.
Page 134 GS-2108C User Manual Function name: 802.1x Mode Setting Function description: Set the operation mode of 802.1X for each port. In this device, it supports only Multi-host operation mode. Parameter description: Port Number: Indicate which port is selected to configure the 802.1x operation mode.
Page 135 GS-2108C User Manual Function name: Port Security Management Function description: Shows each port status. In Multihost mode, it shows the port number and its status, authorized or unauthorized. Parameter description: Disable Mode: When selecting Disable mode for a port in the function 802.1X Port Mode Configuration, the port is in the uncontrolled port state and does not apply 802.1X authenticator on it.
Page 136 GS-2108C User Manual Function name: Param. Setting Function description: This function is used to configure the parameters for each port in 802.1x port security application. Refer to the following parameters description for details. Parameter description: Port: It is the port number to be selected for configuring its associated 802.1x parameters which are Port control, reAuthMax, txPeriod, Quiet Period, reAuthEnabled, reAuthPeriod, max.
Page 137 GS-2108C User Manual reAuthEnabled: Choose whether regular authentication will take place in this port. Default: ON reAuthPeriod(1-65535 s): A non-zero number seconds between the periodic re-authentication of the supplicant. Default: 3600 max. Request(1-10): The maximum of number times that the authenticator will retransmit an EAP Request to the supplicant before it times out the authentication session.
Page 138: A Larm C Onfiguration
GS-2108C User Manual 3-17. Alarm Configuration Alarm Configuration Events Configuration Email/SMS Configuration Function name: Events Configuration Function description: The Trap Events Configuration function is used to enable the switch to send out the trap information while pre-defined trap events occurred. The switch offers 24 different trap events to users for switch management.
Page 139 GS-2108C User Manual LACP: LACP Disabled, LACP Enabled, LACP Member Added, LACP Port Failure GVRP: GVRP Disabled, GVRP Enabled VLAN: VLAN Disabled, Port-based VLAN Enabled, Tag-based VLAN Enabled, Metro-mode Vlan Enabled, Double-tag Vlan Enabled Module Swap: Module Inserted, Module Removed, Dual Media Swapped...
Page 140 Function name: Email/SMS Configuration Function description: Alarm configuration is used to configure the persons who should receive the alarm message via either email or SMS, or both. It depends on your settings. An email address or a mobile phone number has to be set in the web page of alarm configuration (See Fig.
Page 141 GS-2108C User Manual Parameter description: Email: Mail Server: the IP address of the server transferring your email. Username: your username on the mail server. Password: your password on the mail server. Email Address 1 – 6: email address that would like to receive the alarm message.
Page 142: C Onfiguration
GS-2108C User Manual 3-18. Configuration The switch supports three copies of configuration, including the default configuration, working configuration and user configuration for your configuration management. All of them are listed and described below respectively. Default Configuration: This is Rubytech’s setting and cannot be altered. In Web UI, two restore default functions are offered for the user to restore to the default setting of the switch.
Page 143: Save/Restore
GS-2108C User Manual 3-18-1. Save/Restore Function name: Save As Start Configuration Function description: Save the current configuration as a start configuration file in flash memory. Fig. 3-66 Function name: Save As User Configuration Function description: Save the current configuration as a user configuration file in flash memory.
Page 144 GS-2108C User Manual Function name: Restore Default Configuration (includes default IP address) Function description: Restore Default Configuration function can retrieve Rubytech’s setting to replace the start configuration. And the IP address of the switch will also be restored to 192.168.1.1.
Page 145 GS-2108C User Manual Function name: Restore User Configuration Function description: Restore User Configuration function can retrieve the previous confirmed working configuration stored in the flash memory to update start configuration. When completing to restore the configuration, the system’s start configuration is updated and will be changed its system settings after rebooting the system.
Page 146: Config File
GS-2108C User Manual 3-18-2. Config File Function name: Config File Function description: With this function, user can back up or reload the config files of Save As Start or Save As User via TFTP. Parameter description: Export File Path: Export Start: Export Save As Start’s config file stored in the flash.
Page 147: D Iagnostics
GS-2108C User Manual 3-19. Diagnostics Three functions, including Diagnostics, Loopback Test and Ping Test are contained in this function folder for device self-diagnostics. Each of them will be described in detail orderly in the following sections. Diagnostics Diagnostics Loopback Test...
Page 148 GS-2108C User Manual Function name: Loopback Test Function description: In the Loopback Test function, there are two different loopback tests. One is Internal Loopback Test and the other is External Loopback Test. The former test function will not send the test signal outside the switch box. The test signal only wraps around in the switch box.
Page 149 GS-2108C User Manual Function name: Ping Test Function description: Ping Test function is a tool for detecting if the target device is alive or not through ICMP protocol which abounds with report messages. The switch provides Ping Test function to let you know that if the target device is available or not.
Page 150: Tftp S Erver
GS-2108C User Manual 3-20. TFTP Server Function name: TFTP Server Function description: Set up IP address of TFTP server. Parameter description: Specify the IP address where the TFTP server locates. Fill in the IP address of your TFTP server, then press <Apply> button to have the setting taken effect.
Page 151 GS-2108C User Manual 3-21. Log This function shows the log data. The switch provides system log data for users. There are 19 private trap logs, 5 public trap logs. The switch supports total 120 log entries. For more details on log items, please refer to the section of Trap/Alarm Configuration and SNMP Configuration.
Page 152 GS-2108C User Manual Upload Log: Upload log data through tftp. Clear Log: Clear log data. Publication date: April, 2008 Revision A4...
Page 153: F Irmware U Pgrade
GS-2108C User Manual 3-22. Firmware Upgrade Software upgrade tool is used to help upgrade the software function in order to fix or improve the function. The switch provides a TFTP client for software upgrade. This can be done through Ethernet.
Page 154: R Eboot
GS-2108C User Manual 3-23. Reboot We offer you many ways to reboot the switch, including power up, hardware reset and software reset. You can press the RESET button in the front panel to reset the switch. After upgrading software, changing IP configuration or changing VLAN mode configuration, then you must reboot to have the new configuration taken effect.
Page 155: L Ogout
GS-2108C User Manual 3-24. Logout You can manually logout by performing Logout function. In the switch, it provides another way to logout. You can configure it to logout automatically. Function name: Logout Function description: The switch allows you to logout the system to prevent other users from the system without the permission.
Page 156: Cli M Anagement
GS-2108C User Manual 4. Operation of CLI Management 4-1. CLI Management Refer to Chapter 2 for basic installation. The following description is the brief of the network connection. -- Locate the correct DB-9 null modem cable with female DB-9 connector. Null modem cable comes with the management switch.
Page 157 GS-2108C User Manual Fig. 4-1 Fig. 4-2 Publication date: April, 2008 Revision A4...
Page 158: C Ommands Of Cli
GS-2108C User Manual 4-2. Commands of CLI To see the commands of the mode, please input “?” after the prompt, then all commands will be listed in the screen. All commands can be divided into two categories, including global commands and local commands. Global commands can be used wherever the mode you are.
Page 159: Global Commands Of Cli
GS-2108C User Manual 4-2-1. Global Commands of CLI Syntax: Description: Back to the top mode. When you enter this command, your current position would move to the top mode. If you use this command in the top mode, you are still in the position of the top mode.
Page 160 GS-2108C User Manual help Syntax: help Description: To show available commands. Some commands are the combination of more than two words. When you enter this command, the CLI would show the complete commands. Besides, the command would help you classify the commands between the local commands and the global ones.
Page 161 GS-2108C User Manual history Syntax: history [#] Description: To show a list of previous commands that you had ever run. When you enter this command, the CLI would show a list of commands which you had typed before. The CLI supports up to 256 records. If no argument is typed, the CLI would list total records up to 256.
Page 162: Restore Default
GS-2108C User Manual logout Syntax: logout Description: When you enter this command via Telnet connection, you would logout the system and disconnect. If you connect the system through direct serial port with RS-232 cable, you would logout the system and be back to the initial login prompt when you run this command.
Page 163: Restore User
GS-2108C User Manual restore user Syntax: restore user Description: To restore the startup configuration as user defined configuration. If restoring default successfully, the CLI would prompt if reboot immediately or not. If you press Y or y, the system would reboot immediately; others would back to the CLI system. After restoring user-defined configuration, all the changes in the startup configuration would be lost.
Page 164: Save User
GS-2108C User Manual save user Syntax: save user Description: To save the current configuration as the user-defined configuration. When you enter this command, the CLI would save your current configuration into the non-volatile FLASH as user-defined configuration. Argument: None. Possible value: None.
Page 165: Local Commands Of Cli
<port range> : syntax 1,5-7, available from 1 to 8 <times>: max-times , range 1-10 Possible value: <port range> : 1 to 8 <times>: 1-10, default is 2 Example: GS-2108C(802.1X)# set max-request 2 2 set mode Syntax: set mode <port-range> <mode> Description: To set up the 802.1X mode of each port.
Page 166 2:Auto Possible value: <port range> : 1 to 8 <authorized> : 0, 1 or 2 Example: GS-2108C(802.1X)# set port-control 2 2 set quiet-period Syntax: set quiet-period <port-range> <sec> Description: A timer used by the Authenticator state machine to define periods of time during when it will not attempt to acquire a Supplicant.
Page 167 GS-2108C User Manual GS-2108C(802.1X)# set reAuthEnabled 2 1 set reAuthMax Syntax: set reAuthMax <port-range> <max> Description: The number of reauthentication attempts that are permitted before the port becomes Unauthorized. Argument: <port range> : syntax 1,5-7, available from 1 to 8 <max>...
Page 168 <secret-key> : set up the value of secret-key, and the length of secret-key is from 1 to 31 Possible value: <port-number> : 1~65535, default is 1812 Example: GS-2108C(802.1X)# set state 192.168.1.115 1812 WinRadius set suppTimeout Syntax: set suppTimeout <port-range> <sec> Description:...
Page 169 GS-2108C User Manual <port range> : 1 to 8 <sec> : 1-65535, default is 30 Example: GS-2108C(802.1X)# set txPeriod 2 30 show mode Syntax: show mode Description: To display the mode of each port. Argument: None. Possible value: None. Example: GS-2108C(802.1X)# show mode...
Page 170 GS-2108C User Manual suppTimeout : 30 serverTimeout : 30 port 2) port control : Auto reAuthMax txPeriod : 30 Quiet Period : 60 reAuthEnabled : ON reAuthPeriod : 3600 max. Request : 2 suppTimeout : 30 serverTimeout : 30 show security...
Page 171 GS-2108C User Manual None Example: GS-2108C# 802.1x GS-2108C(802.1X)# show state Radius Server: 192.168.1.1 Port Number : 1812 Secret Key : Radius GS-2108C(802.1X)# account Syntax: add <name> Description: To create a new guest user. When you create a new guest user, you must type in password and confirm password.
Page 172 GS-2108C User Manual modify Syntax: modify <name> Description: To change the username and password of an existing account. Argument: <name> : existing user account Possible value: None. Example: GS-2108C(account)# modify aaaaa username/password: the length is from 5 to 15. Current username (aaaaa):bbbbb...
Page 173 <#> <mail address> Description: To set up the email address. Argument: <#> :email address number, range: 1 to 6 <mail address>:email address Possible value: <#>: 1 to 6 Example: GS-2108C(alarm-email)# set mail-address 1 abc@mail.abc.com Publication date: April, 2008 Revision A4...
Page 174 To set up the IP address of the email server. Argument: <ip>:email server ip address or domain name Possible value: None. Example: GS-2108C(alarm-email)# set server 192.168.1.6 set user Syntax: set user <username> Description: To set up the account and password of the email server.
Page 175 To disable email, sms and trap of events. Argument: <range>:del the range of events, syntax 1,5-7 Possible value: <range>: 1~24 Example: GS-2108C(alarm-events)# del all 1-3 del email Syntax: del email <range> Description: To disable the email of the events. Argument: <range>:del the range of email, syntax 1,5-7...
Page 176 To disable the trap of the events. Argument: <range>:del the range of trap, syntax 1,5-7 Possible value: <range>: 1~24 Example: GS-2108C(alarm-events)# del trap 1-3 set all Syntax: set all <range> Description: To enable email, sms and trap of events. Argument: <range>:set the range of events, syntax 1,5-7...
Page 177 Description: To enable the sms of the events. Argument: <range>:set the range of sms, syntax 1,5-7 Possible value: <range>: 1~24 Example: GS-2108C(alarm-events)# set sms 1-3 set trap Syntax: set trap <range> Description: To enable the trap of the events. Argument: <range>:set the range of trap, syntax 1,5-7...
Page 178 GS-2108C User Manual Example: GS-2108C(alarm-events)# show Events Email SMS Trap ----------------------------------------- 1 Cold Start 2 Warm Start 3 Link Down 4 Link Up 5 Authentication Failure 6 User Login 7 User Logout 8 STP Topology Changed 9 STP Disabled 10 STP Enabled...
Page 179 To delete sms phone number. Argument: <#>: mobile phone number, range: 1 to 6 Possible value: <#>: 1 to 6 Example: GS-2108C(alarm-sms)# del phone-number 3 del server-user Syntax: del server-user Description: To delete sms server, user account and password. Argument: None.
Page 180 Argument: <#>: mobile phone number, range: 1 to 6 <phone-number>: phone number Possible value: <#>: 1 to 6 Example: GS-2108C(alarm-sms)# set phone-number 1 0968777777 set server Syntax: set server <ip> Description: To set up the IP address of sms server.
Page 181 GS-2108C User Manual show Syntax: show Description: To display the configuration of SMS trap event. Argument: None. Possible value: None. Example: GS-2108C(alarm-sms)# show SMS Server : 192.168.1.7 Username : ABC Password : **************** Mobile Phone 1: 0968777777 Mobile Phone 2:...
Page 182 To cancel the egress-rate of the port. Argument: <range>:syntax 1,5-7, available from 1 to 8 Possible value: <range>: 1 to 8 Example: GS-2108C(bandwidth)# disable egress-rate 1-8 disable ingress-rate Syntax: disable ingress-rate <range> Description: To cancel the Ingress-rate of the port.
Page 183 <range>:syntax 1,5-7, available from 1 to 8 <data_rate>: 0-1000 Possible value: <range>: 1 to 8 <data_rate>: 0-1000 Example: GS-2108C(bandwidth)# enable egress-rate 1-8 200 enable ingress-rate Syntax: enable ingress-rate <range> <data_rate> Description: To set up the Ingress-rate of the ports. Argument: <range>:syntax 1,5-7, available from 1 to 8...
Page 184 GS-2108C User Manual show Syntax: show Description: To display all current settings of the bandwidth. Argument: None. Possible value: None. Example: GS-2108C(bandwidth)# show Ingress Egress Port ================================================= ====================== All State All Rate Storm State Storm Rate All state All Rate...
Page 185 GS-2108C User Manual config-file export start Syntax: export start Description: To run the export start function. Argument: None. Possible value: None. Example: GS-2108C(config-file)# export start Export successful. export user-conf Syntax: export user-conf Description: To run the export user-conf function. Argument: None.
Page 186 To set up the filepath and filename that will be exported. Argument: <filepath>:filepath and filename Possible value: <filepath>:filepath and filename Example: GS-2108C(config-file)# set export-path log/21511.txt set import-path Syntax: set import-path <filepath> Description: To set up the filepath and filename that will be imported.
Page 187 GS-2108C User Manual show Syntax: show Description: To display the config-file information. Argument: None. Possible value: None. Example: GS-2108C(config-file)# show TFTP Server IP Address: 192.168.3.111 Export Path and Filename: nmap/123.ts Import Path and Filename: user123.txt Publication date: April, 2008 Revision A4...
Page 188 To set up the delay time for DHCP Boot. Argument: <sec>:range syntax: 0, 1-30. The value “0” is to disable dhcp-boot delay Possible value: <sec>:0-30 Example: GS-2108C(dhcp-boot)# set dhcp-boot 30 show Syntax: show Description: To display the status of DHCP Boot.
Page 189 GS-2108C User Manual diag diag Syntax: diag Description: Diag is used to test whether UART, DRAM, Flash and EEPROM is normal or not. Argument: None. Possible value: None. Example: GS-2108C(diag)# diag EEPROM Test : OK UART Test : OK DRAM Test...
Page 190 To set up the image file that will be upgraded. Argument: <filepath>: upgrade file path Possible value: <filepath>: upgrade file path Example: GS-2108C(firmware)# set upgrade-path gs2108c_GS-2108C_v2.03.img show Syntax: show Description: To display the information of tftp server and upgrade-path. Argument: None.
Page 191 GS-2108C User Manual gvrp disable Syntax: disable Description: To disable the gvrp function. Argument: None. Possible value: None. Example: GS-2108C(gvrp)# disable enable Syntax: enable Description: To enable the gvrp function. Argument: None. Possible value: None. Example: GS-2108C(gvrp)# enable group Syntax: group <group number>...
Page 192 GS-2108C User Manual GS-2108C(gvrp)# group 2 GS-2108C(gvrp-group-2)# set applicant 1-6 non-participant GS-2108C(gvrp-group-2)# show GVRP group VID: 2 Port Applicant Registrar ---- --------------- --------- Non-Participant Normal Non-Participant Normal Non-Participant Normal Non-Participant Normal Non-Participant Normal Non-Participant Normal Normal Normal Normal Normal GS-2108C(gvrp-group-2)# set registrar 1-8 fixed...
Page 193 <normal>: set applicant as normal mode <non-participant>: set applicant as non-participant mode Possible value: <range>: 1 to 8 <normal|non-participant>: normal or non-participant Example: GS-2108C(gvrp)# set applicant 1-8 non-participant set registrar Syntax: set registrar <range> <normal|fixed|forbidden> Description: To set default registrar mode for each port.
Page 194 <enable>: set restricted enabled <disable>: set restricted disabled Possible value: <range>: 1 to 8 <enable|disable>: enable or disable Example: GS-2108C(gvrp)# set restricted 1-8 enable GS-2108C(gvrp)# show config GVRP state: Enable Port Join Time Leave Time LeaveAll Time Applicant Registrar Restricted...
Page 195 Leave Time must equal double Join Time at least. Possible value: <range> : 1 to 8 <join>: 20 to 100 <leave>: 60 to 300 <leaveall>: 1000 to 5000 Example: GS-2108C(gvrp)# set timer 2-8 25 80 2000 show config Syntax: show config Description: To display the gvrp configuration. Argument: None.
Page 196 Description: To display the counter number of the port. Argument: <port>: port number Possible value: <port>: available from 1 to 8 Example: GS-2108C(gvrp)# show counter 2 GVRP Counter port: 2 Counter Name Received Transmitted -------------------- -------- ----------- Total GVRP Packets...
Page 197 Description: To set up the mode of IGMP Snooping. Argument: <status>: 0:disable , 1:active , 2:passive Possible value: <status>: 0,1or 2 Example: GS-2108C(igmp)# set igmp-snooping 2 show Syntax: show Description: To display IGMP snooping mode and IP Multicast Table. Argument: None.
Page 198 GS-2108C(ip)# enable dhcp manual set dns Syntax: set dns <ip> Description: To set the IP address of DNS server. Argument: <ip> : dns ip address Possible value: 168.95.1.1 Example: GS-2108C (ip)# set dns 168.95.1.1 Publication date: April, 2008 Revision A4...
Page 199 Possible value: <ip> : 192.168.1.2 or others <mask> : 255.255.255.0 or others <gateway> : 192.168.1.253 or others Example: GS-2108C(ip)# set ip 192.168.1.2 255.255.255.0 192.168.1.253 show Syntax: show Description: To display the system’s DHCP function state, IP address, subnet mask, default gateway, DNS mode, DNS server IP address and current IP address.
Page 200 GS-2108C User Manual clear Syntax: clear Description: To clear the log data. Argument: None. Possible value: None. Example: GS-2108C(log)# clear disable auto-upload Syntax: disable auto-upload Description: To disable the auto-upload function. Argument: None. Possible value: None. Example: GS-2108C(log)# disable auto-upload...
Page 201 GS-2108C User Manual show Syntax: show Description: To show a list of trap log events. When any of log events happens, it will be recorded and using show command in log function to query. Up to 120 log records are supported.
Page 202 To set up the mac alias entry. Argument: <mac> : mac address, format: 00-02-03-04-05-06 <alias> : mac alias name, max. 15 characters Possible value: None. Example: GS-2108C(mac-table-alias)# set 00-44-33-44-55-44 www show Syntax: show Description: To display the mac alias entry. Argument: None.
Page 203 <vid> : vlan id, from 1 to 4094; '?' as don't care, 0 as untagged Possible value: <port> :1 to 8 <vid> : 0, 1 ~4094 Example: GS-2108C(mac-table-information)# search 1-8 ??-??-??-??-??-?? ? MAC Table List Alias MAC Address Port VID State...
Page 204 Argument: <#>: age-timer in seconds, 0, 10 to 65535. The value “0” means to disable aging Possible value: <#>: 0, 10 to 65535. Example: GS-2108C(mac-table-maintain)# set aging 300 set flush Syntax: set flush Description: To delete all of the MACs that is learned dynamically.
Page 205 Possible value: <mac> : mac address <port> : 0-8 <vid> : 0, 1-4094 [alias] : mac alias name Example: GS-2108C(mac-table-static-mac)# add 00-02-03-04-05-06 3 0 aaa Syntax: del <mac> <vid> Description: To remove the static mac entry. Argument: <mac> : mac address, format: 00-02-03-04-05-06 <vid>...
Page 206 GS-2108C User Manual show filter Syntax: show filter Description: To display the static filter table. Argument: None Possible value: None Example: GS-2108C(mac-table-static-mac)# show filter Static Filtering Etnry: (Total 1 item(s)) 1) mac: 00-33-03-04-05-06, vid: -, alias: ccc show forward Syntax:...
Page 207 [<type> <value>] For example, h(ttp),s(nmp),t(elnet) or any. <action> <value> No default and it must be set. Example: GS-2108C(management-add)# set name Mary vid 20 ip 192.168.1.1-192.168.1.90 port 2-5,8 type h,s action a GS-2108C(management-add)# show #: 1 Name : Mary VlanID : 20 IP : 192.168.1.1-192.168.1.90...
Page 208 GS-2108C User Manual delete Syntax: delete # Description: To delete a specific record or range. Argument: <#>: a specific or range management security entry(s) Possible value: None. Example: GS-2108C(management)# show #: 1 Name : Tom VlanID : 2 IP : 192.168.1.30-192.168.1.80...
Page 209 For example, h(ttp),s(nmp),t(elnet) or any <action> <value> No default and it must be set. Example: GS-2108C(management)# edit 1 GS-2108C(management-edit-1)# set name Tom vid 2 ip 192.168.1.30- 192.168.1.80 port 1-2 type s action d GS-2108C(management-edit-1)# show #: 1 Name : Tom VlanID : 2 IP : 192.168.1.30-192.168.1.80...
Page 210 GS-2108C User Manual show Syntax: show Description: To show the specific management policy record. Argument: None. Possible value: None. Example: GS-2108C(management)# show #: 1 Name : Tom VlanID : 2 IP : 192.168.1.30-192.168.1.80 Type : SNMP Action : Deny Port : 1,2...
Page 211 <range>: port range, syntax 1,5-7, available from 1 to 8 <length (bytes)>: maximum packet length Possible value: <range> : 1 to 8 <length (bytes)>: 1518/1532/9208 Example: GS-2108C(max-pkt-len)# set len 1-8 9208 show Syntax: show Description: To show current setting of maximum packet length setting.
Page 212 : enable the mode of mirror(Only mirror the packets that is received) disable: end the function of mirror Possible value: <rx | disable>: rx or disable Example: GS-2108C(mirror)# set mirror-mode rx set monitored-port Syntax: set monitored-port <range> Description: To set up the port that will be monitored. The packets received by this port will be copied to the monitoring port.
Page 213 GS-2108C User Manual show Syntax: show Description: To display the setting status of Mirror function. Argument: None. Possible value: None. Example: GS-2108C(mirror)# show Mirror Mode : rx Monitoring Port : 2 Monitored Port : 3 4 5 8 Publication date: April, 2008...
Page 214 To disable the flow control function of the port. Argument: <range>: syntax 1,5-7, available from 1 to 8 Possible value: <range>: 1 ~ 8 Example: GS-2108C (port)# disable flow-control 6 disable state Syntax: disable state <range> Description: To disable the communication capability of the port.
Page 215 To enable the flow control function of the port. Argument: <range>: syntax 1,5-7, available from 1 to 8 Possible value: <range>: 1 ~ 8 Example: GS-2108C (port)# enable flow-control 3-8 enable state Syntax: enable state <range> Description: To enable the communication capability of the port.
Page 216 To display the detailed counting number of each port’s traffic. Argument: <#>: port, available from 1 to 8 Possible value: <#>:1 ~ 8 Example: GS-2108C (port)# show detail-counter 5 show sfp Syntax: show sfp <port> Description: To display the SFP module information.
Page 217 Syntax: show simple-counter Description: To display the summary counting of each port’s traffic. Argument: None. Possible value: None. Example: GS-2108C (port)# show simple-counter show status Syntax: show status Description: To display the port’s current status. Argument: None. Possible value: None.
Page 218 <#>: 1-10 <tcp/udp port range>: 0-65535 <default>: 1 or 0 <match>: 1 or 0 Example: GS-2108C(qos)# set advance-layer4 5 2 80 1 0 set default Syntax: set default <class> Description: To set priority class of the packets that qos won’t affect.
Page 219 <ds-range>: dscp field, syntax 1,5-7, available from 0 to 63 <class>: class of service setting. 1: high, 0: low Possible value: <ds-range>: 0 to 63 <class>: 1or 0 Example: GS-2108C(qos)# set diffserv 0-20 1 set mode Syntax: set mode <port/pri_tag/tos/layer4/diffserv> Description: To set qos priority mode of the switch.
Page 220 <class>: class of service setting. 1: high, 0: low Possible value: <port-range>: 1 to 8 <tag-range>: 0 to 7 <class>: 1or 0 Example: GS-2108C(qos)# set pri-tag 1-7 1-2 1 set simple-layer4 Syntax: set simple-layer4 <#> Description: To set class of ports on simple mode of Layer 4 qos.
Page 221 <class>: class of service setting. 1: high, 0: low Possible value: <port-range>: 1 to 8 <tos-range>: 0 to 7 <class>: 1or 0 Example: GS-2108C(qos)# set tos 1-5 0-3 0 show Syntax: show Description: To display the information of the mode you choose.
Page 222 GS-2108C User Manual reboot reboot Syntax: reboot Description: To reboot the system. Argument: None. Possible value: None. Example: GS-2108C# reboot snmp disable Syntax: disable set-ability disable snmp Description: The Disable here is used for the de-activation of snmp or set-community.
Page 223 <community>:trap community name Possible value: <#>: 1 to 6 <port>:1~65535 Example: GS-2108C(snmp)# set get-community public GS-2108C(snmp)# set set-community private GS-2108C(snmp)# set trap 1 192.168.1.1 162 public show Syntax: show Description: The Show here is to display the configuration of SNMP. Argument: None.
Page 224 GS-2108C User Manual MCheck Syntax: MCheck <range> Description: To force the port to transmit RST BPDUs. Argument: <range>: syntax 1,5-7, available from 1 to 8 Possible value: <range>: 1 to 8 Example: GS-2108C(stp)# Mcheck 1-8 disable Syntax: disable Description: To disable the STP function.
Page 225 <admin p2p>: Admin point to point, <auto|true|false> Possible value: <range>:1 to 8 <path cost>: 0, 1-200000000 <priority>: 0 to 240 <edge_port>: yes / no <admin p2p>: auto / true / false Example: GS-2108C(stp)# set port 1-8 0 128 yes auto Publication date: April, 2008 Revision A4...
Page 226 <stp|rstp> Description: To set up the version of STP. Argument: <stp|rstp>:stp / rstp Possible value: <stp|rstp>:stp / rstp Example: GS-2108C(stp)# set version rstp show config Syntax: show config Description: To display the configuration of STP. Argument: None Possible value:...
Page 227 GS-2108C User Manual show port Syntax: show port Description: To display the port information of STP. Argument: None. Possible value: None. Example: GS-2108C# stp GS-2108C(stp)# show port Port Port Status Path Cost Priority Admin Edge Port Admin Point To Point...
Page 228 GS-2108C User Manual show status Syntax: show status Description: To display the status of STP. Argument: None. Possible value: None. Example: GS-2108C(stp)# show status STP Status : STP State : Enabled Bridge ID : 00:40:C7:D8:09:1D Bridge Priority : 61440 Designated Root...
Page 229 Argument: <contact>:string length up to 40 characters. Possible value: <contact>: A, b, c, d, ... ,z and 1, 2, 3, …. etc. Example: GS-2108C(system)# set contact Taipei set device-name Syntax: set device-name <device-name string> Description: To set the device name description of the switch.
Page 230 GS-2108C User Manual show Syntax: show Description: To display the basic information of the switch. Argument: None Possible value: None Example: GS-2108C(system)# show Model Name : GS-2108C System Description : L2 Managed Switch Location Contact Device Name : GS-2108C System Up Time...
Page 231 To set up the IP address of tftp server. Argument: <ip>: the IP address of tftp server Possible value: <ip>: tftp server ip Example: GS-2108C(tftp)# set server 192.168.3.111 show Syntax: show Description: To display the information of tftp server. Argument: None.
Page 232 : -5 to +5 : (01-12) : (01-31) : (00-23) : (01-12) : (01-31) : (00-23) Example: GS-2108C(time)# set daylightsaving 3 10/12/01 11/12/01 Save Successfully set manual Syntax: set manual <YYYY/MM/DD> <hh:mm:ss> Description: To set up the current time manually. Argument:...
Page 233 To set up the current time via NTP server. Argument: <ip>: ntp server ip address or domain name <timezone>: time zone (GMT), range: -12 to +13 Possible value: <timezone>: -12,-11…,0,1…,13 Example: GS-2108C(time)# set ntp clock.via.net 8 Synchronizing...(1) Synchronization success show Syntax: show Description: To show the time configuration, including “Current Time”, “NTP Server”,”...
Page 234 : set the LACP to passive mode Possible value: <port-range> : 1 to 8 <method>: static / lacp <group>: 1-8. <active LACP>: active / passive Example: GS-2108C(trunk)# set trunk 1-4 lacp 1 active Publication date: April, 2008 Revision A4...
Page 235 To display the detailed information of the LACP trunk group. Argument: <aggtr>: aggregator, available from 1 to 8 Possible value: <aggtr>: 1 to 8 Example: GS-2108C(trunk)# show lacp-detail 2 Aggregator 2 Information: Actor Partner --------------------------------- --------------------------------- System Priority MAC Address...
Page 236 GS-2108C User Manual show lacp-priority Syntax: show lacp-priority Description: To display the value of LACP Priority. Argument: None Possible value: None Example: GS-2108C(trunk)# show lacp-priority LACP System Priority : 32768 show status Syntax: show status Description: To display the aggregator status and the settings of each port.
Page 237 Description: To delete the port-based vlan group. Argument: <name>: which vlan group you want to delete. Possible value: <name>: port-vlan name Example: GS-2108C(vlan)# del port-group VLAN-2 del tag-group Syntax: del tag-group <vid> Description: To delete the tag-based vlan group. Argument: <vid>: which vlan group you want to delete, available from 1 to 4094...
Page 238 To drop frames from the non-member port. Argument: <range>: which port(s) you want to set, syntax 1,5-7, available from 1 to 8 Possible value: <range>: 1 to 8 Example: GS-2108C(vlan)# disable sym-vlan 5-8 enable drop-untag Syntax: enable drop-untag <range> Description: To drop the untagged frames.
Page 239 <name> <range> Description: To add or edit a port-based VLAN group. Argument: <name>: port-vlan name <range>: syntax 1,5-7, available from 1 to 8 Possible value: <range>: 1 to 8 Example: GS-2108C(vlan)# set port-group VLAN-1 2-5,6,8 Publication date: April, 2008 Revision A4...
Page 240 <hybrid>: Tag all frames except a specific VID <vid>: untag-vid for hybrid port Possible value: <range>: 1 to 8 <vid>: 1 to 4094 Example: GS-2108C(vlan)# set port-role 5 hybrid 6 set pvid Syntax: set pvid <range> <pvid> Description: To set the pvid of vlan.
Page 241 set timer Syntax: set timer <range> <join> <leave> <leaveall> Description: To set gvrp join time, leave time, and leaveall time for each port. Argument: <range> : port range, syntax 1,5-7, available from 1 to 24 <join>: join timer, available from 20 to 100 <leave>: leave timer, available from 60 to 300 <leaveall>: leaveall timer, available from 1000 to 5000 Leave Time must equal double Join Time at least.
Page 242 <#>: sym/asym vlan setting. 1: symmetric vlan, 0: asymmetric vlan Possible value: <vid>: 1 to 4094 <range>: 1 to 8 <#>: 0 or 1 Example: GS-2108C(vlan)# set tag-group 2 VLAN-2 2-5,6,8 0 show group Syntax: show group Description: To display the vlan mode and vlan group.
Page 243 GS-2108C User Manual show pvid Syntax: show pvid Description: To display pvid, ingress/egress rule. Argument: None. Possible value: None. Example: GS-2108C(vlan)# show pvid Port PVID Rule1 Rule2 Port Rule Untag Vid ------ ------ --------- --------- ----------- ----------- Disable Disable Access...
Page 244 To enable the virtual stack. Argument: None. Possible value: None. Example: GS-2108C(vs)# enable set gid Syntax: set gid <gid> Description: To set the group id. Argument: <gid>:Group ID Possible value: a-z,A-Z,0-9 <gid>: Example: GS-2108C(vs)# set gid group1 Publication date: April, 2008 Revision A4...
Page 245 Description: To set role. Argument: <master|slave>: master: act as master, slave : act as slave Possible value: <master|slave>: master or slave Example: GS-2108C(vs)# set role master show Syntax: show Description: To display the configuration of the virtual stack. Argument: None.
Page 246: Resolving No Link Condition
GS-2108C User Manual 5. Maintenance 5-1. Resolving No Link Condition The possible causes for a no link LED status are as follows: The attached device is not powered on The cable may not be the correct type or is faulty...
Page 247 GS-2108C User Manual Appendix A Technical Specifications Features • 6 (10/100/1000Mbps) Gigabit Ethernet (TP) switching ports are compliant with IEEE802.3, 802.3u, 802.3z and 802.3ab. • 2 Gigabit TP/SFP fiber are dual media ports with auto detected function. • Non-blocking store-and-forward shared-memory Web-Smart switched.
Page 248 GS-2108C User Manual Hardware Specifications Standard Compliance: IEEE802.3/802.3ab / 802.3z / 802.3u / 802.3x Network Interface: Configuration Mode Connector Port 10/100/1000Mbps Gigabit TP 1 - 8 NWay TP (RJ-45) 1000Base-SX Gigabit Fiber 7, 8 (Option) 1000 FDX *SFP 1000Base-LX Gigabit Fiber...
Page 249 GS-2108C User Manual Diagnostic LED: System LED : Power, CPU Per Port LED: 10/100/1000M TP Port 1 to 8 : LINK/ACT, 10/100/1000Mbps 1000M SFP Fiber Port 7, 8 : SFP(LINK/ACT) Power Requirement AC Line Voltage 100∼240 V Frequency 50∼60 Hz...
Page 250 GS-2108C User Manual Management Software Specifications Auto-negotiation support on 10/100/1000Base- TX ports, Web browser or console interface can set transmission speed (10/100/1000Mbps) and System Configuration operation mode (Full/Half duplex) on each port, enable/disable any port, set VLAN group, set Trunk Connection.
Page 251 GS-2108C User Manual Appendix B Null Modem Cable Specifications The DB-9 cable is used for connecting a terminal or terminal emulator to the Managed Switch’s RS-232 port to access the command-line interface. The table below shows the pin assignments for the DB-9 cable.
Page 253 Release Note =========================================================== History: 1. Date: 06/06/2005 Release Content: 1. \GS-2108C Gigabit L2 Managed Switch User's Manual 2. \Read Me First 3. \MIB File v0.93 Release Version: v0.93 New Added Content: None Modified Content: None =========================================================== History: 2. Date: 01/25/2006 Release Content: 1.
Page 254 History: 3. Date: 12/07/2007 Release Content: 1. \GS-2108C Gigabit L2 Managed Switch User's Manual 2. \Read Me First 3. \RUBY Brochure Release Version: v2.14 New Added Content: Non Modified Content: Add RUBY Brochure History: 4. Date: 04/29/2008 Release Content: 1. \GS-2108C Gigabit L2 Managed Switch User's Manual 2.

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