KTI Networks KGS-2404 Uživatelský manuál

KGS-2404 Web Smart 24-Port Gigabit Ethernet Switch UUsseerr’’ss MMaannuuaall DOC.080711

4 • Supports 802.1Q VLAN • Supports user management and limits one user to login • Maximal packet length can be up to 9600 bytes for jumbo frame

94 4-4. Maintenance There are five functions contained in the maintenance function. Warm RestartFactory DefaultMaintenanceSoftwar

95 4-4-1. Warm Restart Web Smart Switch offers many approaches to reboot your switch, such as: power up, hardware reset and software reset. You can

96 4-4-2. Factory Default Function name: Factory Default Function description: Factory Default provides the function to retrieve default settings

97 4-4-3. Software Upgrade Function name: Software Upgrade Function description: You can just click Browse button to retrieve the file you want in

98 4-4-4. Configuration File Transfer Function name: Configuration File Transfer Function description: You can backup your switch’s configuration f

99 4-4-5. Logout In addition to auto logout function we just mentioned in system configuration section, the switch also allows administrators to log

100 5. Maintenance 5-1. Resolving No Link Condition The possible causes for a no link LED status are as follows: z The attached device is not pow

101 Appendix A Technical Specifications Features • 20 (10/100/1000Mbps) Gigabit Ethernet (TP) switching ports are compliant with IEEE802.3, 802.

102 Hardware Specifications  Standard Compliance: IEEE802.3/802.3ab / 802.3z / 802.3u / 802.3x  Network Interface: Configuration Mode Co

103  Diagnostic LED: System LED : Power Per Port LED: 10/100/1000M TP Port 1 to 24 : LINK/ACT, 10/100/1000Mbps 1000M SFP Fiber Po

5 1-4. View of 24-Port GbE Web Smart Switch 1-4-1. User Interfaces on the Front Panel (Button, LEDs and Plugs) There are 24 TP

104 Management Software Specifications System Configuration Auto-negotiation support on 10/100Base-TX ports, Web browser can set transmission sp

105 Appendix B MIB Specifications MIB II Enterprise MIB brief description is listed as below. PRIVATE-GESM-SW24L-MIB DEFINITIONS ::= BEGIN IMP

6 • LED Indicators LED Color Function System LED POWER Green Lit when +3.3V power is coming up 10/100/1000Ethernet TP Port 1 to 24 LED LI

7 1-5. View of the Optional Modules In the switch, Port 21~24 include two types of media --- TP and SFP Fiber (LC, BiDi…); they support 10/100/1000

8 2. Installation 2-1. Starting 24-Port GbE Web Smart Switch Up This section describes how to install the Web Smart Switch and its components, and

9 • TP Port and Cable Installation ⇒ In the switch, TP port supports MDI/MDI-X auto-crossover, so both types of cable, straight-through (Cable pi

10 2-1-2-1. Cabling Requirements for TP Ports ⇒ For Fast Ethernet TP network connection ⎯ The grade of the cable must be Cat. 5 or Cat. 5e with

11 2-1-2-3. Switch Cascading in Topology • Takes the Delay Time into Account Theoretically, the switch partitions the collision domain for each po

12 Case1: All switch ports are in the same local area network. Every port can access each other (See Fig. 2-2). If VLAN is e

13 Case 2b: Port-based VLAN (See Fig.2-4). 1. VLAN1 members could not access VLAN2, VLAN3 and VLAN4 members. 2. VLAN2 members could not acc

14 2-1-3. Configuring the Management Agent of 24-Port GbE Web Smart Switch In the way of web, user is allowed to startup the switch management func

15 2-1-3-1. Management through Ethernet Port There are two ways to configure and monitor the switch through the switch’s Ethernet port. They are W

16 Fig. 2-7 the Login Screen for Web 2-1-4. IP Address Assignment For IP address configuration, there are three parameters need

17 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

18 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

19 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

20 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 1

21 2-2. Typical Applications The 24-Port GbE Web Smart Switch provides auto MDIX on its TP ports and supports fiber types like: LC and BiDi SFP fo

22 Fig. 2-12 Office Network Connection Fig. 2-11 Peer-to-peer Network Connection

23 3. Basic Concept and Management This chapter will tell you the basic concept of features to manage this switch and how they work. 3-1. What’

Web Smart 24-Port Gigabit Ethernet Switch User's Manual Release 1.02

24 This above diagram shows the Ethernet architecture, LLC sub-layer and MAC sub-layer, which are responded to the Data Link layer,

25 The table 3-1 is the format of LLC PDU. It comprises four fields, DSAP, SSAP, Control and Information. The DSAP address field identifies the

26 3-2. Media Access Control (MAC) MAC Addressing Because LAN is composed of many nodes, for the data exchanged among these nodes, each node mus

27 Bit 47 bit 0 1st byte 2nd by

28 - Destination address (DA) — The DA field is used to identify which network device(s) should receive the packet. It is a unique address. P

29 How does a MAC work? The MAC sub-layer has two primary jobs to do: 1. Receiving and transmitting data. When receiving data, it parses frame to

30 Ethernet MAC transmits frames in half-duplex and full-duplex ways. In half-duplex operation mode, the MAC can either transmit or receive frame a

31 Parameter value/LAN 10Base 100Base 1000Base Max. collision domain DTE to DTE 100 meters 100 meters for UTP412 meters for fiber1

32 3-3. Flow Control Flow control is a mechanism to tell the source device stopping sending frame for a specified period of time designated by targ

33 Frame Reception In essence, the frame reception is the same in both operations of half duplex and full duplex, except that full-duplex operation

ii Table of Contents Caution ...

34 What if a VLAN tagging is applied? VLAN tagging is a 4-byte long data immediately following the MAC source address. When tagged VLAN is applied,

35 The maximum length of the extension is equal to the quantity (slotTime - minFrameSize). The MAC continues to monitor the medium for collisions w

36 Extended Distance Limitations: The diameter of a half-duplex LAN segment is determined by its maximum propagation delay time. For example, in

37 How does a switch operate? A Layer 2 switch uses some features of the Data Link layer in OSI model to forward the packet to the destination

38 Mac address aging There is a field in MAC address table used to put the entry’s Age time which determines how long a MAC entry can reside in a s

39 3-5. Virtual LAN What is a VLAN? It is a subset of a LAN. Before we discuss VLAN, we must understand what LAN is. In general, a LAN is composed

40 Now we apply VLAN technology to configure the system shown as the figure above. We can partition the users into the different logical network

41 There are many types of VLAN applied. Most popular is port-based VLAN, tag-based VLAN and protocol-based VLAN.  Port-based VLAN Some physical p

42 VLAN-tagged frame: An Ethernet frame, carrying VLAN tag field, contains VLAN identification without the value of 0 and 4095, and priority infor

43 Ingress Rule: Each packet received by a VLAN-aware bridge will be classified to a VLAN. The classification rule is described as follows. 1. If t

iii 4-4. Maintenance...94 4-4-1. Warm Re

44 How does a Tagged VLAN work? If the ingress filtering is enabled and when a packet is received, VLAN bridge will first check if the VID of the p

45 3-6. Link Aggregation Basically, Link Aggregation is to aggregate the bandwidth of more than one port to an assigned logical link. This highly

46 Terminology Link Aggregation: It is a method to have multiple physical links with the same media and speed bundled to be a logical link formin

47 4. Operation of Web-based Management This chapter would introduce how to manage your Web Smart Switch and how to configure the 10/100/1000Mbps

48 Fig. 4-1 4-1. Web Management Home Overview After login, System Information would be displayed as Fig. 4-2 illustrated. This page lists defa

49 • The Information of Page Layout ⎯ On the top part of the information page, it shows the front panel of the switch. Linked ports will be displa

50 4-2. Configuration Configuration includes the following functions: System Configuration, Ports Configuration, VLAN Mode Configuration, VLAN Grou

51 4-2-1. System Configuration System configuration is one of the most important functions. Without a proper setting, network administrator would n

52 Active IP Address: Show the active IP address of this switch. Active Subnet Mask: Show the active subnet mask of this switch. Active Ga

53 Subnet mask is used to set the subnet mask value, which should be the same value as that of the other devices resided in the same networ

iv Revision History Release Date Revision 1.02 06/28/2007 A2 1.01 03/13/2007 A1 1.00 02/10/2007 A1 Caution Circuit devices are sensitive to

54 4-2-2. Port Configuration Function name: Port Configuration Function description: Port Configuration is applied for the settings of the ports

55 Fig. 4-4 Port Configuration 4-2-3. VLAN Mode Configuration Web Smart Switch supports Port-based VLAN and Tag-based VLAN (802.1q). Its VLAN mod

56 Tag-based: Tag-based VLAN identifies its member by VID. This is quite different from port-based VLAN. If there are any more rules in ingress filt

57 4-2-4. VLAN Group Configuration Function name: VLAN Group Configuration Function description: It shows the information of VLAN Groups, and allow

58 Add Group: Create a new port-based VLAN or tag-based VLAN, which depends on the VLAN mode you choose in VLAN mode function. Fig. 4-8 Add or Rem

59

60 4-2-5. Aggregation The Aggregation (Port Trunking) Configuration is used to configure the settings of Link Aggregation. You can bundle ports by s

61 4-2-6. LACP Smart Web Switch supports link aggregation IEEE802.3ad standard. The standard describes Link Aggregate Control Protocol (LACP) which

62 4-2-7. RSTP RSTP detects and resolves network loops, and provides backup links between switches, bridges and routers. The protocol allows a swit

63 Function name: RSTP Port Configuration Function description: Enable or disable RSTP protocol on the ports that are selected and set path cos

1 About this user’s manual This user’s manual provides instructions on how to install your Web Smart Switch. This guide also covers management o

64 4-2-8. 802.1X 802.1x port-based network access control provides a method to restrict users to access network resources via authenticating user’s

65 While in the authentication process, the message packets, encapsulated by Extensible Authentication Protocol over LAN (EAPOL), are exchanged betw

66 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. 1. At the i

67 10. When the supplicant issue an EAP-Logoff message to Authentication server, the port you are using is set to be unauthorized. Fig. 4-15 The 8

68 Function description: This function is used to configure the global parameters for RADIUS authentication in 802.1x port security application.Para

69 Force the subscriber has to reinitialize connected to the port. Force Reinitialize All: Force Reinitialize for all ports in at once. -----------

70 Fig. 4-17 802.1X Statistics Function name: 802.1x Parameters Function description: In here, user can enable or disable Reauthentication fun

71 4-2-9 IGMP Snooping Function name: IGMP Snooping Configuration Function description: IGMP Snooping lets administrators configure a switch t

72 4-2-10. Mirror Configuration Function name: Mirror Configuration Function description: Mirror Configuration is provided to monitor the traffic i

73 4-2-11. QoS(Quality of Service) Configuration The switch offers powerful QoS function. This function supports VLAN-tagged priority that can make

2 1. Introduction 1-1. Overview of 24-Port GbE Web Smart Switch The 24-port Gigabit Web Smart Switch is a standard switch that meets all IEEE 802.3

74 Function name: QoS Configuration Function description: While setting QoS function, please select QoS Mode in drop-down menu at first. Then you ca

75 Function name: DSCP Setting Function description: In the late 1990s, the IETF redefined the meaning of the 8-bit SERVICE TYPE field to accommoda

76 4-2-12 Filter Function name: Filter Configuration Function description: This function lets administrators easily set management source IP address

77 DHCP Server Allowed: Just tick the check box (;) under the port x to allow the DHCP Server on this port and valid port is Port 1~16. Default: en

78 4-2-13 Rate Limit Function name: Ingress and Egress Bandwidth Setting Function description: Ingress and Egress Bandwidth Setting function are use

79 4-2-14 Storm Control Function name: Storm Control Function description: Storm Control is used to block unnecessary multicast and broadcast frames

80 Multicast Rate: To enable the Multicast Storm capability. User can use drop-down menu to select number of frames. Default is No Limit. The settin

81 4-2-15 SNMP Any Network Management System (NMS) running the Simple Network Management Protocol (SNMP) can manage the Managed devices equipped wit

82 Default community name for Get: public Default community name for Set: private Default community name for Trap: public Fig. 4-27 SNMP Configur

83 4-3. Monitoring There are six functions contained in the monitoring function. 4-3-1. Statistics Overview The function of Sta

3 1-2. Checklist Before you start installing the switch, verify that the package contains the following: ⎯ A 24-Port GbE Web Smart Switch ⎯ Modu

84 Tx Errors: Number of bad packets transmitted. Rx Errors: Number of bad packets received. Fig. 4-28 Statistics Overview for all ports

85 4-3-2. Detailed Statistics Function name: Detailed Statistics Function description: Display the detailed counting number of each port’s traffi

86 Show the counting number of the transmitted multicast packet. Tx Broad- and Multicast: Show the counting number of the transmitted broadcast with

87 Number of long frames(according to max_length register) with valid CRC. Rx Fragments: Number of short frames (< 64 bytes) with invalid CRC. R

88 4-3-3. LACP Status Function name: LACP Status Function description: Display LACP status. Fig. 4-30 illustrates that LACP Status window can show

89 4-3-4. RSTP Status Function name: RSTP Status Function description: Display RSTP status. Fig. 4-28 shows you that RSTP window can present VLAN

90 Fig. 4-31 RSTP Status

91 4-3-5. IGMP Status Function name: IGMP Status Function description: Display IGMP status. In Fig. 4-29, the window shows VLAN ID for each multic

92 Fig. 4-32 IGMP Status 4-3-6. Ping Status Function name: Ping Status Function description: To set up target IP address for ping function and

93 Target IP address: Show the active target IP address. Status: Show the result of the ping status. Received replies: