Cisco DGS-1224T - Manual

1 ABOUT THIS GUIDE Congratulations on your purchase of the DGS-1224T 24-Port 10/100/1000Mbps Gigabit Ethernet + 2-Port Mini GBIC Web-Smart Switch. This device integrates 1000Mbps Gigabit Ethernet, 100Mbps Fast Ethernet and 10Mbps Ethernet network capabilities in a highly flexible package. Purpose Th...

2 INTRODUCTION This chapter describes the features of the DGS-1224T and provides some background information about Ethernet/Fast Ethernet/Gigabit Ethernet switching technology. Gigabit Ethernet Technology Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, fo...

3 In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to take advantage of today and tomorrow’s rapidly improving switching and routing internetworking technologies. And with expected advances in the coming years in silicon technology and digital sig...

4 Switching Technology Another approach to pushing beyond the limits of Ethernet technology is the development of switching technology. A switch bridges Ethernet packets at the MAC address level of the Ethernet protocol transmitting among connected Ethernet or Fast Ethernet LAN segments. Switching i...

5 so broadcast and multicast traffic use valuable network bandwidth more efficiently. Additional VLAN benefits include: Security: Security is increased with the reduction of opportunity in eavesdropping on a broadcast network because data will be switched to only those confidential users within the ...

6 ♦ Supports Static MAC setting ♦ D-Link Safeguard Engine support ♦ Supports Simple Network Management Protocol(SNMP) ♦ MIB support for: RFC1213 MIB II, Private MIB ♦ Supports DHCP client ♦ Supports Port -setting for Speed and Flow control ♦ Easy configuration via Web Browser 　 ♦ Easy setting via We...

7 Flash Memory Prom 2M Bytes Port Functions LAN - 24 x 10/100/1000BaseT ports - Compliant with the following standards: IEEE 802.3 compliance 1. IEEE 802.3u compliance 2. IEEE 802.3ab compliance 3. Supports Full-Duplex operations at 10/100Mbps, and 1000Mbps only on SFP ports 4. IEEE 802.3x Flow Cont...

8 Reset button on the back panel A factory reset button x 1 Physical & Environment AC input 100-240 VAC, 50/60Hz Internal universal power supply Operation Temperature 0-40°C Storage Temperature -10-70°C Humidity Operation: 10%-90% RH Storage: 5% ~ 90% RH Power consumption 35.1(watts) Heat Dissip...

9 UNPACKING AND INSTALLATION This chapter provides unpacking and installation information for the Web-Smart Switch. Unpacking Carefully unpack the contents of the Web-Smart Switch packaging and locate the following items: One DGS-1224T Web-Smart Switch One AC power cord, suitable for the local elect...

10 • Install the Switch in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and direct exposure to sunlight. • Leave at least 10cm of space to the front and rear of the Switch for ventilation. • Install the Switch on a sturdy, level surface that can support...

11 Figure 2 – Attach the mounting brackets to the Switch Use the screws provided with the equipment rack or chassis to mount the Switch in the rack. Figure 3 – Mount the Switch in the rack or chassis Connecting Network Cable The Switch supports 1000Mbps Gigabit Ethernet that can operate in Auto-nego...

12 AC Power The Switch utilizes an AC power supply of 100-240V AC, 50-60 Hz. The power switch is located at the rear of the Switch adjacent to the AC power connector and the system fan. The switch’s power supply will adjust to the local power source automatically and may be turned on without having ...

13 IDENTIFYING EXTERNAL COMPONENTS This chapter describes the front panel, rear panel, and LED indicators of the Switch. Front Panel The figure below shows the front panel of the Switch. Figure 4 – Front panel of the 24-port Web-Smart Switch LED Indicator: Comprehensive LED indicators display the st...

14 Rear Panel Figure 5 – Rear panel of the Switch Reset button: The Reset button resets all configuration settings back to the factory default. Note: Be sure that to record all custom settings of the Switch before pressing the reset button. Resetting the Switch back to factory default settings will ...

15 UNDERSTANDING LED INDICATORS The front panel’s LED Indicators provide instant status feedback, which help monitoring and troubleshooting LAN issues if needed. Figure 6 – LED indicators of the Switch Power and System LEDs Location LED Indicative Color Status Description Solid Light Power is On Pow...

16 Blinking When there is reception or transmission (or Activity) of data in any port Light off No link detected Green Solid Light When there is a secure connection (or link) to 1000Mbps device in a port Amber Solid Light When there is a secure connection (or link) to 100Mbps device in any of the po...

17 CONFIGURATION Through a web browser, the features and functions of the DGS-1224T Switch can be configured for optimum use. Supported web browsers The embedded Web-based Utility currently supports the following web browsers: • Microsoft Internet Explorer ver. 6.0, 5.5 • Mozilla ver. 1.7.12, 1.6 • ...

18 SmartConsole Utility Features The SmartConsole Utility is divided into four parts, a Menu Toolbar of functions at the top, Discovery List, Monitor List , and Device Setting . Figure 7 – SmartConsole Utility Menu Toolbar The Menu Toolbar in the SmartConsole Utility has four main tabs, File, View, ...

19 • Exit: To exit the SmartConsole Utility. View includes: View log and Clear Log functions, which provide trap setting list operations. • View Log: To show the event of the SmartConsole Utility and the device. • Clear Log: To clear all log entries. Option includes: Refresh Time and Group Timer fun...

20 Help includes: information About the SmartConsole Utility, such as the software version. Discovery List This is the list where all Web-Smart devices on the network are discovered. By pressing the Discovery button, all the Web-Smart devices are listed in the discovery list. Double click or press t...

21 Definitions of the Monitor List functions and terms: S: Shows the system symbol of the Web-Smart device, represents the device system is inactive. IP Address: Shows the current IP address of the device. MAC Address: Shows the device MAC Address. Protocol version: Shows the version of the Utility ...

22 The symbol “ ” represents a new trap signal, and will disappear after the event record is reviewed (clicked). Figure 9 – Trap information Note: To receive Trap information, the switch must be configured with Trap IP and Trap Events, available from the Trap Setting menu. Add Item: Adds a device to...

23 Figure 10 – Configuration Setting Password Change: To change the password, fill in the new and original password, and press “Set” . Figure 11 – Password Change This space has been intentionally reserved for notes:

24 Firmware Upgrade: When the device firmware is be upgraded, enter the Firmware path and password (if necessary) to update. Figure 12 – Firmware Upgrade Web Access: Double click the device in the Monitor List or select a device in the Monitor List and press the “Web Access” button to open the Web-b...

25 Web-based Utility The DGS-1224T Web-Smart Switch has a web browser GUI interface for configuring the Switch through a web browser. To see the list of web browsers the Web-based Utility supports, see Supported web browsers on page 20. A network administrator can manage, control and monitor the Swi...

26 When the following dialog appears, (the actual IP address will correspond with the IP address of the Switch), enter the default password "admin" and press OK to enter the main Web-based Utility. Figure 15 – Log in screen After entering the password, the main page of the Web-based Utility ...

27 Tool Menu The Tool Menu offers global function controls such as Reset, Configuring Backup and Restoration, Firmware Backup and Upload, and System Reboot. Figure 17 – Tool Menu Reset: Provides a safe reset option for the Switch. Figure 18 – Tool Menu > Reset Configure Backup and Restore: Allows...

28 Figure 19 – Tool Menu > Configure Backup and Restore Firmware Backup and Upload: Allows for the firmware to be saved, or for an existing firmware file to be uploaded to the Switch. Figure 20 – Tool Menu > Firmware Backup and Upload

29 System Reboot: Provides a safe way to reboot the system. Figure 21 – Tool Menu > System Reboot Setup Menu When the Web-based Utility appears, a Setup Menu on the left side of the screen provides an organization of links to pages for specific feature and function configurations and properties. ...

30 System > System Setting The System Setting includes IP Information and System information. By default DHCP is disabled. If DHCP is disabled, the IP Address , Subnet Mask and Gateway can be manually configured. By entering a System Name and System Location , the device can more easily be recogn...

31 Enabled , enter the Destination IP address of the managing PC that will receive trap information. Figure 24 – System > Trap Setting System Event: Monitors the system’s trapping information. Device Bootup: Traps system boot-up information. Illegal Login: Traps events of incorrect password login...

32 System > Port Setting In the Port Setting page, the status of all ports can be monitored and adjusted for optimum configuration. By selecting a range of ports ( From Port and To Port ), the Speed and Flow Control can be set for all such ports, by clicking Apply . To refresh the information tab...

33 Flow Control: This setting determines if the Switch handles flow control. Set to Enable to avoid data transfer overflows. Default setting for all ports is Disable . Link Status: Reporting Down indicates the port is disconnected. Priority: Displays each port’s 802.1P QoS priority level for receive...

35 events such as a port status change. The Switch can generate traps and send them to the trap recipient (i.e. network administrator). Setting up a Trap: Select Enable , enter a Trap Name (i.e. Trap Name must be selected from a Community Name), add the IP of the device to be monitored, and choose t...

36 Configuration > Jumbo Frame By default, the Jumbo Frame function is set to Disabled. Enabling this function will allow the Switch to receive packets sizes of up to 10,240 bytes. Figure 28 – Configuration > Jumbo Frame Configuration > 802.1Q VLAN The IEEE 802.1Q VLAN Configuration page pr...

39 Configuration > Trunking The Trunking function enables the cascading of two or more ports for a combined larger bandwidth. Up to six Trunk groups may be created, each supporting up to 8 ports. Add a Trunking Name and select the ports to be trunked together, and click Apply to activate the sele...

42 a group is received, a group-specific query is sent to the port on which the leave message is received. A timer is started with a time interval equal to IgsLeaveProcessInterval. If a report message is received before above timer expires, the Leave message is dropped. Otherwise the Leave message i...

43 To view the Multicast Entry Table for a given VLAN, press the View button. Figure 36 – Configuration > IGMP Multicast Entry Table

44 Configuration > 802.1D Spanning Tree 802.1D Spanning Tree Protocol (STP) implementation is designed to prevent network loops that could cause a broadcast storm. When physical links forming a loop provide redundancy, only a single path will be forwarding frames. If the link fails, STP activates...

45 Bridge Priority: This value between 0 and 65535 specifies the priority for forwarding packets: the lower the value, the higher the priority. The default is 32768. Bridge Max Age: This value may be set to ensure that old information does not endlessly circulate through redundant paths in the netwo...

46 Path Priority: Select a value between 0 and 255 to specify the priority for a specified port for forwarding packets: the lower the value, the higher the priority. The default is 128. Configuration > Port Mirroring Port Mirroring is a method of monitoring network traffic that forwards a copy of...

47 RX (receive) mode: Duplicates the data that send to the source and forwards it to the Target Port. Both (transmit and receive) mode: Duplicate both the data transmitted from and data send to the source port, and forwards all the data to the assigned Target Port. None: Turns off the mirroring of t...

48 flooding into the switch's CPU. This function helps protect the Web-Smart Switch from being interrupted by malicious viruses or worm attacks. Figure 40 – Security > Safeguard Engine Security > Broadcast Storm Control The Broadcast Storm Control (BSC) feature provides the ability to control ...

50 Figure 42 – QoS > 802.1X Setting By default, 802.1X is Disabled . To use EAP for security, select Enabled and set the 802.1X Global Settings for the Radius Server and applicable authentication information. Authentication Port: sets primary port for security monitoring. Default is 1812. Key: Ma...

51 QuietPeriod: Sets the number of seconds that the switch remains in the quiet state following a failed authentication exchange with the client. Default 80 seconds SuppTimeout: Sets the switch-to-client retransmission time for the EAP-request frame. Default is 12 seconds. ServerTimeout: Sets the am...

52 Security > Mac Address Table > Static MAC This page provides two distinct features. The top table provides the ability to turn off auto learning Mac address if a port isn't connected to an uplink Switch (i.e. DHCP Server). By default, this feature is OFF (disabled). Figure 43 – Security >...

53 Security > Mac Address Table > Dynamic Forwarding Table For each port, this table displays the Mac address of each packet passing through the Switch. To add a Mac address to the Static Mac Address List, click the Add checkbox associated with the identified packet. Figure 44 – Security > ...

54 Monitoring > Statistics The Statistics screen displays the status of each port packet count. Figure 45 – Monitoring > Statistics Refresh: To renew the details collected and displayed. Clear Counter: To reset the details displayed. TxOK: Number of packets transmitted successfully. RxOK: Numb...