Fluke Network Tester Bedienungsanleitung

NetT ool ™ Inline Network Tester Users Manual PN 1560821 June 2000, Rev 3, 3/05 © 2000-2005 Fluke Corporation, A ll rights reserved. All product names are trademarks of their respective companies.[...]

LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke Networks product is warrante d to be free from defec ts in material and workman ship under normal use and service. The warranty period for the mainframe is one year and begin s on the date of purc hase. Parts, accessories, product repairs and services are w arranted for 90 days, unless otherwi[...]

i Table of Contents Chapter Title Page 1 Introduc tion ................................................................................................................. . 1-1 Using This Manual .......................................................................................................... 1-1 What is Ne tTool? ............................[...]

NetTool Users Manual ii Understanding t he LEDs ........................................................................................... 1-6 Link/Collision/E rror LED ....................................................................................... 1-6 Utilization LE D .......................................................................[...]

Contents (continued) iii 3 Aut oTest ..................................................................................................................... ... 3-1 Introduc tion ................................................................................................................... . 3 - 1 Running Auto Test................................[...]

NetTool Users Manual iv Ping........................................................................................................................... ..... 5-4 Assigning an IP Addre ss to NetT ool.......................................................................... 5-4 Pinging a Single Device .................................................[...]

Contents (continued) v Viewing VLAN and CDP Information ......................................................................... 7-2 The VoIP Log ................................................................................................................. 7 -3 Viewing Call Quality Measurement s .................................................[...]

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vii List of Tables Table Title Page 1-1. NetTool's Device Icons .................................................................................................... ...... 1-7 3-1. Services Ne tTool Dis covers ................................................................................................ .. 3-4 3-2. Duplex Settings ..........[...]

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ix List of Figures Figure Title Page 1-1. NetTool Front P anel ....................................................................................................... ....... 1-1 1-2. Initia l Scre en ............................................................................................................ .............. 1-5 1-3. NetT ool LE Ds .[...]

NetTool Users Manual x 3-5. Diagram of an Inline Con nection ........................................................................................... 3-5 3-6. Inline Connection Betw een a PoE-Powered Device and the Netw ork .................................. 3-7 4-1. Stat ion Me nu ................................................................[...]

1-1 Chapter 1 Introduction Using This Manual This Users Manual is supplied with the NetT ool™ Inline Network Tester (hereafter refe rred to as NetTool) to help you learn to use your new tester quickly and more efficiently. The manual introduc es you to the key features and operation of NetTool and shows you how to set it up and use it to resolve [...]

NetTool Users Manual 1-2 NetTool is available in the foll owing models: • NetTool Standard: provides single- ended testing of network devices. Also includes a Ping function an d the capability to display VLAN traffic and CDP information. • NetTool Pro: includes all of the features in the standard model plus the ability to do inli ne testing bet[...]

Introduction What is NetTool? 1 1-3 • This NetTool Users Manual and the NetTool Quick Reference Guide • CD-ROM, containing this NetTool Users Manual , NetTool . Blaster! (updates software), and the NetTool Toolkit • CD-ROM, containing Key Device Watch. Optional Accessories You can separately purchase the following accessories for NetTool from[...]

NetTool Users Manual 1-4 Contacting Fluke Ne tworks www.flukenetworks.com support@flukenetworks.com +1-425-446-4519 • Australia: 61 (2) 8850-3333 or 61 (3) 9329 0244 • Beijing: 86 (10) 6512- 3435 • Brazil: 11 3044 1277 • Canada: 1-800-363-585 3 • Europe: +44 1923 281 300 • Hong Kong: 852 2721-32 28 • Japan: +81-3-3434-018 1 • Korea:[...]

Introduction Getting Acquainted 1 1-5 NetTool Toolkit NetTool Toolkit enables you to: • Generate reports • Download reports • Configure PING parameters and catalogs. Installing and Running the Link Utilities To install the programs: 1. Insert the CD-ROM that comes packaged with NetTool into your PC. A navigation screen displays. 2. Run the se[...]

NetTool Users Manual 1-6 Understanding the LEDs On each side of the LCD, NetTool has a pair of LED indicators (Figure 1-3). These LEDs combin e to give you immediate insight and at-a-glance i nformation about your network environment. The top pair of LEDs provides link, collision, and error information while the bottom pair indicates utilization le[...]

Introduction Getting Acquainted 1 1-7 NetTool Menus NetTool has an icon- and menu-driven user interface. Icons The top area (Figure 1-4) con tains a connection diagr am. This diagram contains icons that show what type of device is connected to NetTool’s RJ-45 jack s. ahn020s.eps Figure 1-4. NetTool Icons NetTool’s device icons are listed in Tab[...]

NetTool Users Manual 1-8 • Key Devices : displays all of the servers, rout ers, and printers that NetTool finds on the network. • Toolkit or VoIP/Toolkit (so named if the VoIP option is installed): displays the Toolkit menu where you can access the Ping utility, the Reporter function, and health statistics. If the VoIP (Voice over IP) option is[...]

Introduction Power Supply 1 1-9 Power Supply To supply power to the tester, you can use the four AA size batteries (supplied) or the (optional) rec hargeable batteries. Alternatively, you can use the (opt ional) AC adapter. Installing the Batteries Figure 1-5 shows you how to insert the four AA batteries into the tester’s battery compartment. 1 2[...]

NetTool Users Manual 1-10 Updating NetTool’s Software From time to time, updates to NetTool’s software become available. • Select the NetTool icon then select About NetTool to find out what version of software is installed on the tester. • To find out if there is a new software version available, go to www.flukenet works.com . Select NetToo[...]

2-1 Chapter 2 Setting Up and Connecting NetTool Introduction This chapter shows you how to set up NetTool. Among the tasks covered are how to set NetTool’s date and time, how to configure its IP address information, and h ow to locate important in formation, such as the serial number. This chapter also shows you how to make a singl e-ended connec[...]

NetTool Users Manual 2-2 Changing the System Settings Select Settings to display the Settings menu: afq42s.bmp Figure 2-2. Settings Menu On this menu, you can do the following: • Check the battery level. If NetTool is running on battery power, the battery level indicator is display ed at the top of every Setup screen. • Select a unit of measure[...]

Setting Up and Connecting NetTool Configuring NetTool 2 2-3 • Restore factory default settings. Select Restore Defaults to restore all of NetTool’s factory default settings. Identifying Unwanted Protocols Select Unwanted Protocols to display a screen that allows you to identify protocols on the netw ork that you want NetTool to warn you about. [...]

NetTool Users Manual 2-4 5. Press SELECT to save the IP address for NetTool. NetTool lists the updated address with the su bnet and router IP addresses. 6. In like manner, configure the subnet mask and router addresses. NetTool assists you by enteri ng the first parts of those addresses based on common addressing rules. Creating a List of IP Addres[...]

Setting Up and Connecting NetTool Connecting NetTool 2 2-5 Connecting NetTool NetTool has two RJ-45 jacks, one on each side. Use the supplied RJ-45 cable to connect a patch cabl e to NetTool and to create a single-ended or inline connection. NetTool also has a serial port, which en ables you to directly connect the tester to a PC. Connecting a Patc[...]

NetTool Users Manual 2-6 Figure 2-4 shows a single-en ded connection to a wall jack. ahn308f.eps Figure 2-4. Single-Ended C onnection into a Wall Jack. Use this type of connection when you ne ed to check a network drop for activity and to find out what services lie on the other side. When connected in similar fashion to a hub or switch, NetTool can[...]

Setting Up and Connecting NetTool Connecting NetTool 2 2-7 Inline Connection An inline connection entails having N etTool simultaneously plugged i n between two network devices, such between as a PC or a PoE-powered de vice and a network switch. Use this type of connection to verify whether the device can communicate prop erly with the network. Cau[...]

NetTool Users Manual 2-8 Serial Port Connection Note The recommended speed setting for the serial port is 115200. A serial port connection enables you to: • Download software (see “Updating the Software”) • Enable options • Save screens • Upload and downlo ad PING catalogs • Upload Report data. Use the Link Utility programs suppl ied [...]

3-1 Chapter 3 AutoTest Introduction AutoTest provides a good starting point for trying to determine what devices are on your network and for making a quick assessment of your network ’s overall condition. Results from AutoTest can alert you to connectivity problems before they impact net work performance. This chapter shows you how to run AutoTes[...]

NetTool Users Manual 3-2 Cable Test Results If NetTool is connected to a patch cable, AutoTest evaluates the integrity of t he cable and finds errors that might suggest a physical media problem. If a wiremap adapter is attached, NetTool performs deeper testing of the cable by additionally verifyi ng pin-to-pin connectivity. Cable Length, Opens, Sho[...]

AutoTest Running AutoTest 3 3-3 Single-Ended AutoTest Results AutoTest result screens vary depending o n the device that NetTool is connected to. Note This results described in this section are pro vided as examples of what information NetTool provides. Network Drop If NetTool is connected to a network drop, it displays one of the following icons t[...]

NetTool Users Manual 3-4 Table 3-1 lists the devices and services that NetTool discovers. Table 3-1. Services NetTool Discovers Device Services Servers IP Servers (IP services discovered): DHCP, DNS, email (SMTP, POP, IMAP), Web (HTTP, HTTP proxy), WINS. NetWare Servers (IPX service types): Nearest File Server, File Server, NetWare Access server, T[...]

AutoTest Running AutoTest 3 3-5 Inline AutoTest Results The diagrams at the top of the screen can give you a quick indication of what is going on with your network. Inline between a Device and the Network Caution When operating inline with a POE-powered device connected to Ne tTool, make sure that NetTool is not plugged into the AC adapter or into [...]

NetTool Users Manual 3-6 Polarity information is also given. The waveform-shaped icons used in the diagram ar e listed in Table 3-3. Table 3-3. Link and Polarity Level Indicator Definition Normal level, normal polarity Normal level, reverse polarity Low level, normal polarity Low level, reverse polarity. Link level is displayed by the height of the[...]

AutoTest Running AutoTest 3 3-7 To get detailed results, move the cursor to one of the following icons then press SE LECT : • PC icon : enables you to view results for the device. Go to Chapter 4 “Troubleshooting a Network Device” for details. • Network icon : enables you to view network results. Go to Chapter 5 “Troubleshooting Networks?[...]

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4-1 Chapter 4 Troubleshooting a Network Device Introduction NetTool can provide information that you ca n use to determine whether a device is configured properly for your network. After you have confidence that all of the stations and devices on your network are con figured correctly, you can move on to evaluate the entire network. This chapter sh[...]

NetTool Users Manual 4-2 Five basic types of information about the device or network can be selected from this menu: • Link Config : provides link pulse information. If the VoIP option is installed, you can also fin d out PoE voltage and pair information. • Health : lets you monitor frames and view errors that may indicate problems on the devic[...]

Troubleshooting a Network Device Verifying a Device’s Configura tion 4 4-3 Checking Frames for Errors To find out how many frames have been transmitted and whether any errors were discovered i n those frames, display the Health screen (Figure 4-3): afq35s.bmp Figure 4-3. Health Details This screen enables you to look at the status of frames trans[...]

NetTool Users Manual 4-4 4. To change what NetTool is viewing in re al-time and to change the direction (that is, “to/from Network” or “to/from PC”), move the cursor to the desired device icon (located in the upper right or left). Then press SELECT . Use this information to make comparisons. For example, you may see a hi gh percenta ge of n[...]

Troubleshooting a Network Device Verifying a Device’s Configura tion 4 4-5 Tracking Protocols Note You can also view protocol inf ormation by selecting Protocols from the Main menu. To find out what protocols are associated with a devic e or running on the network, do the followin g: 1. Display the Protocols screen (Figure 4-5): afq20s.bmp Figure[...]

NetTool Users Manual 4-6 Obtaining a Device’s IP Address Information To obtain IP address information for a device, do the following: 1. Select Addresses Used to di splay the following: ahn25s.bmp Figure 4-7. Addresses Used Screen The Addresses Used screen enab les you to verify a devices’ IP address information. This screen also displays the b[...]

Troubleshooting a Network Device Verifying a Device’s Configura tion 4 4-7 3. You can also find out what VLAN a devic e belongs to. Press the Down b arrow key to locate VLAN statistics, as shown in Figure 4-9: ahn322s.bmp Figure 4-9. VLAN Information NetTool can provide information for up to five discovered VLANS. This screen shows the VLAN’s I[...]

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5-1 Chapter 5 Troubleshooting Networks Introduction The information documented in this cha pter can help you evaluate the health of your network and assist you with troubleshooting network prob lems. NetTool features a Ping test, which is described in this chapter. Use this test to verify connectivity between devices on the network. Finding Out Abo[...]

NetTool Users Manual 5-2 Four basic functional groups of information about the network are listed on this men u: • Link Config : provides link pulse information about the network. See “Viewing Link Status Information” in Chapter 4 for details. • Health : lets you monitor frames and view errors that indicate problems on the l ink. See “Che[...]

Troubleshooting Networks Finding Out About Your Network 5 5-3 This screen also tells you which VLAN NetTool is connected to. If CDP informati on is found, it is also reported on this screen. Note The Segment ID screen is identical to the Addresses Used screen documente d in Chapter 4. For information on VLANs and CDP, see “Obtaining a Device’s [...]

NetTool Users Manual 5-4 Ping NetTool can automatically ping any single de vice on your network or a group consisting of up to 10 devices. Ping provides instant informat ion about how a network device is connected and how it is acting on y our local segment, making it easier for you to pinpoint connectivity problems. This section shows you how to s[...]

Troubleshooting Networks Ping 5 5-5 3. Do one of the following: • Select the IP address of the device from the list. OR • Select Add New Device to display the Edit screen. On this screen, supply the IP address of the device then select Update . NetTool pings the device an d automatically adds its address to a running list (up to 10) of recently[...]

NetTool Users Manual 5-6 3. To view results for a parti cular IP address, move the cursor to the address, then press SELECT . The Ping Results screen (Figure 5-6) for your selection is displayed: afq50s.bmp Figure 5-6. Ping Results Screen 4. To ping the list of IP addresses again, move the cursor to the name of t he catalog, then select Restart . N[...]

6-1 Chapter 6 Common Problems Introduction The Problem Log includes a li sting of all pr oblems that NetTool detected from the physical layer to application layer. Not every problem containe d in this log is at the same level of severity; therefore, just because a problem is listed here does not imply t hat it is a catastrophic one. For example, Un[...]

NetTool Users Manual 6-2 The Problem Log (Figure 6-2) is displayed: afq60s.bmp Figure 6-2. Problem Log Understanding the Problem Log Display There are nine types of probl ems listed in the Problem Log. Each type of problem has an icon ass ociated with it. For example, a stethoscope is used to identify health- related problems. As you become more fa[...]

Common Problems Problems NetTool Detects 6 6-3 Things to Consider You can think of problems fitting into one of two categories: link connectivity or network. Link connectivity problems relate to cabling or cabling properties whi le network problems involve PC/ network configuration settings or PC-to-server interactions. Generally, you encounter net[...]

NetTool Users Manual 6-4 • Problem : Pair mismatch Explanation : The link pulse is being sourced on the same wire pair by both sides. This problem does not prevent connection to the network. NetTool automatically swaps the pairs to correct this probl em. Remedy : Check the cabling. It may be plugged into an uplink port. Also, there may be a cross[...]

Common Problems Problems NetTool Detects 6 6-5 Network Problems This section lists all of the network problems. Keep in mind that this is not an exhaustive list of troubleshooting steps. If you know what you need, the network administrator for the network you are troublesh ooting can prov ide you with a lot of information to correct these problems.[...]

NetTool Users Manual 6-6 NetWare • Problem : Ethernet frame-type mismatches . Explanation : For the PC and network to communicate, they both must be configured for the same frame type (802.3-raw, 802.2, Ethernet II, and SNAP). You can configure a client for a single frame type. A server can optionally be configure d to recognize some or all frame[...]

Common Problems Problems NetTool Detects 6 6-7 TCP/IP • Problem : PC using incorrect IP subnet mask. Explanation : NetTool has determined that the PC is not properly configured. Remedy : Access PC network properties and correct the IP subnet mask. • Problem : Router issued ICMP redirect. Hosts or devices using incorrect gateway/routers. Explana[...]

NetTool Users Manual 6-8 • Problem : DHCP server issuing IP address that causes duplicate IP on network . Explanation : The DHCP server in question is not detecting an address and is provisionin g a duplicate. Remedy : This problem can be caused by a statically configured PC. Find the stat ically confi gured PC on the network and changes its IP a[...]

Common Problems Problems NetTool Detects 6 6-9 • Problem : No WINS server found on network to resolve names. Explanation : The PC is configured to use WINS (Windows Internet Name Service) and non e can be found. Remedy : Make sure the WINS server is up and running. Access the PC’s network prop erties. • Problem : PC WINS incorrect. Explanatio[...]

NetTool Users Manual 6-10 • Problem : xxx.xxx.xxx.xxx causing duplicate NetBIOS name. Explanation : Only one unique NetBIOS name is allowed on a domain. Remedy : The name specified on the PC needs to be changed to eliminate dupl ication. • Problem : PC involved in MB elections . Explanation : NetTool sees packets from the PC that are generating[...]

Common Problems Problems NetTool Detects 6 6-11 • Problem : Unable to connect to POP3 server Explanation : The PC cannot find the POP3 server it is configured to find. The server itself may be down as well. Remedy : Access NetTool’s Key Devices list to view information about this server and then make corrections within the mail setup area of th[...]

NetTool Users Manual 6-12 Unwanted protocols (wh en enabled) The purpose of the Unwanted Protocols featu re is to enable you to find protocols that you do n ot want on the network. For example, if you have migrated away from NetWare on the network, NetTool wil l flag a device that still has NetWare configured on it. • Problem : NetBEUI detected ?[...]

7-1 Chapter 7 Verifying Voice over IP Service Introduction With the VoIP (Voice over IP) option enabled , you can use NetTool to verify VoIP service on a link. NetTool can track SCCP/SIP call control and measure RTP quality of service. The VoIP Log and VoIP Monitor capture call transactions, providing you with a step-by-step recor d of major events[...]

NetTool Users Manual 7-2 Viewing PoE Voltage and Pair Information After you run AutoTest, you can obtain PoE voltage and pair information for the network or phone side. Do the following: 1. Depending on which si de you want to look at, select one of the following icons: • PC icon: • Network icon: . The Station menu (PC icon) or Network menu (Ne[...]

Verifying Voice over IP Service The VoIP Log 7 7-3 When plugged into a switch V LAN port, the native and appliance (phone) VLANs ar e also displayed along with the CDP information, as shown in Figure 7-2: ahn320s.bmp Figure 7-2. VLAN Port Information The VoIP Log The VoIP Log is a per-call event log that records major SCCP/SIP and RTP events and me[...]

NetTool Users Manual 7-4 Viewing Call Quality Measurements The VoIP Monitor tracks call quality (RTP data). To display the VoIP Monitor , do the following: 1. From the Main menu, select VoIP/Toolkit . 2. On the VoIP/Toolkit menu, select VoIP Monitor to display the screen shown in Figure 7-4: ahn309s.bmp Figure 7-4. VoIP Monitor The VoIP Monitor inc[...]

8-1 Chapter 8 Creating and Managing Reports Introduction NetTool’s Reporter feature e nables you to capture d evice and network configuration data and save tha t information in a report. You can create and save up to 10 reports. Reporter helps you do the fol lowing: • Document configurations for groups of users (for example, Customer Service, M[...]

NetTool Users Manual 8-2 Creating a Report Reporter enables you to creat e a report that reflects what NetTool currently detects on the PC (or another device) and/or the network. To create a report: 1. Connect NetTool to the device you want to ch eck and run AutoTest. 2. From the Main menu, select ToolKit . 3. Move the cursor to Reporter , then pre[...]

Creating and Managing Reports Deleting or Overwriting a Rep ort 8 8-3 c. Move the cursor to Save Report . Then, press SELECT to save. If you inadvertently give two reports the same name on NetTool, check the date/time stamp when you view the reports to differentiate between the m. After you save a report, you can use NetTool Toolkit to upload, view[...]

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Appendices Appendix Title Page Specificat ions ................................................................................................................. ...... A-1 VoIP Logs ...................................................................................................................... ........ B-1 Glossary ...........................[...]

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A-1 Appendix A Specifications General Specifications Media Access 10Base-T and 100Base-TX. Cable Tests Internal wiremap, cable lengt h, opens, shorts, and split pairs Ports Shielded Hub/NIC connector (RJ-45). Serial port – customized 2.5mm “stereo” input jack. Interface Push button navigation of icon/menu-driv en view. Battery Removable alkal[...]

NetTool Users Manual A-2 Environmental Requirements Operating Temperature 10 ° C to 30 ° C with up to 95 % Relative Humi dity 10 ° C to 40 ° C with up to 75 % Relative Humi dity Non-Operating Temperature -20 ° C to +60 ° C Approvals The Fluke NetTool has the following a pprovals: European Standar d EN 60950, CSA/CAN C22.2 No. 950, and UL 1950[...]

B-1 Appendix B Sample VoIP Call Logs Introduction This appendix contains sample SCCP and SIP call lo gs. All of the logs contain running commentaries to familiar ize you with the messaging and information that is exchange d during a call.[...]

NetTool Users Manual B-2 Typical Cisco Skinny (SCCP) Phone Bootup >DHCP DISCOVER 00c017a00079 >DHCP OFFER 129.196.197.016 >DHCP REQUEST 003094c4426f >DHCP ACK 129.196.197.016 // the phone broadcasts an IP address request // the MAC address of the phone // the DHCP server offers an address // the offered IP address // the phone requests [...]

Appendices Sample VoIP Call Logs B B-3 Typical Cisco Skinny (SCCP ) Phone Bootup (continued ) <REGISTER_ACK >CAPABILITY_REQUEST <CAPABILITY_RESULT >TFTP file request SEP003094C4426F.cnf.xml >TFTP file request RINGLIST.XML >TFTP file request DISTINCTIVERINGLIST.XML >CDP SEP003094C4426F Cisco IP Phone 7960 // the Call Manager ack[...]

NetTool Users Manual B-4 Typical Cisco Skinny (SCCP) Call Log Following is a sample SCCP call log. Event s in the exchange are shown on the le ft. Commentary appears on the right to help you follow the sequencing of the exch ange. The log captures an entir e phone trans action, starting with the phone g oing OFF HOOK: CallMgr:129.196.197.2 44 OFF H[...]

Appendices Sample VoIP Call Logs B B-5 Typical Cisco Skinny (S CCP) Call Log (continued ) RTP streaming… // the conversation has started 129.196.197.023:30142 // phone 1 IP address and port number VLAN:untag TOS:0xb8 // phone 1 VLAN and TOS being used 129.196.197.016:20828 // phone 2 IP address and port number VLAN:untag TOS:0xb8 // phone 2 VLAN [...]

NetTool Users Manual B-6 Typical Cisco Skinny (S CCP) Call Log (continued ) <RTP cnt:476fr Jitter:1ms Arrival Avg:20ms Min:19ms Max:20ms Drop:0fr DropBurst:0s Call Complete // phone 2 stats[...]

Appendices Sample VoIP Call Logs B B-7 Typical SIP Phone Bootup Log >DHCP DISCOVER 000f66fc9e72 >DHCP OFFER 129.196.196.202 >DHCP REQUEST 000f66fc9e72 >DHCP ACK 129.196.196.202 >DNS req:000f66fc9e72 atlas4.atlas.vonage.net <DNS response 216.115.025.056 REGISTER sip:atlas4.atla 200 OK // the phone broadcasts an IP address request /[...]

NetTool Users Manual B-8 Typical SIP Phone Bootup Log (continued) >DNS req:000f66fc9e72 ls.tftp.vonage.net <DNS response 192.015.192.015 // the phone looks up the FTP file server // the DNS server responds with the IP address >TFTP file request /uObE8NkRvq/spa000F66FC9 REGISTER sip:atlas4.atla 200 OK REGISTER sip:atlas4.atla 200 OK // the [...]

Appendices Sample VoIP Call Logs B B-9 Typical SIP Call Log INVITE sip:5983842@atlas 407 Proxy Authentication ACK sip:5983842@atlas4.a INVITE sip:5983842@atlas // the phone invites the other party // the gateway acknowledges the numb er 100 Trying 180 Ringing 180 Ringing 200 OK SIP RTP port 12436 ACK sip:17195983842@21 6. Call Setup:213ms // the ga[...]

NetTool Users Manual B-10 Typical SIP Call Log (continued) >RTP cnt:2186fr Jitter:21ms Arrival Avg:19ms Min:7ms Max:29ms Drop:23fr DropBurst:21ms // phone 1 stats—the number of RTP frames // the inter-frame arrival jitter // the average arrival of the frames // the minimum and maximum inter-arrival time // the number of dropped frames // the l[...]

C-1 Appendix C Glossary 10BASE2 Sometimes called ThinLAN or CheaperNet, 10BASE2 is the implementation of t he IEEE 802.3 Ether net standard on thin coaxial cable. The maximum segment length is 185 meters. 10BASE5 Sometimes called Thi ckLAN, 10BASE5 is the implementation of the I EEE 802.3 Ethernet st andard on thick coaxial cable. The maximum segme[...]

NetTool Users Manual C-2 10BASEF A point-to-point fiber link. This is the draft specification for IEEE 802.3 Ethernet over fiber optic cable. 10BASE-T 10BASE-T is the implementation of the IEEE 802.3 Ethernet standard on unshielded twisted-pa ir wiring. It is a star topology, with stations directly connected to a multi- port Hub, and it has a maxim[...]

Appendices C C-3 ARP (Address Resolution Protocol) A member of the TCP/IP protocol suite, ARP is the method by which a station’s MAC address is determin ed given a station’s IP (Int ernet Protocol) addres s. Attenuation A reduction in the strength of a signal; the opposite of gain. Bandwidth Bandwidth is the rate at which data can be transmitte[...]

NetTool Users Manual C-4 Client A client is a computer that makes requests of a server. A client has only one user; a server is shared by many users. Collision A collision is the result of two or more nodes transmitting at the same time. Excessive collisions are most often caused by a problem with the physica l media. Crossed Pair A wiring error in[...]

Appendices C C-5 Destination Address The address of the stati on receiving a frame. DNS Domain Name Services provides a mech anism that allows users to remember logical machine n ames rather than IP addresses. DNS provides ma pping between a machine name (e.g., www.fluke.com) and its IP address (e.g., xxx.xxx.xxx.xxx). EIA568 Electronic Industries [...]

NetTool Users Manual C-6 Full-Duplex 10Base-T and 100Base-TX n etwork operation using a switching Hub to establish a point-to-point co nnection between LAN nodes that allows simultan eous sending and receiving of data packets. Full-duplex performance is twice that of half-duplex performance. A 10Base-T full- duplex network is capable of 20 Mb/s dat[...]

Appendices C C-7 Jabber A frame greater than the maximum legal size (greater than 1518 bytes) with a good or bad frame check sequence. In general, you should not see jabbers. The most likely causes of jabbers are a faulty NIC/driver or perhaps a cabling problem. Jitter Variability in latency, or delay. If a network provides varying levels of latenc[...]

NetTool Users Manual C-8 NEXT Near-end crosstalk; crosstalk between two twisted pairs measured at the same end of the cable as the disturbing signal source. NIC (Network Interface Card) A network interface card is the adapter card that plugs into a computer to provide a network connect ion. Node Number Node number identifies the device of interest.[...]

Appendices C C-9 Remote Collision A collision that occurs on the other side of a repeater. Since a 10BASE-T Hub is a multi-port repeater with a "segment" dedicated to each station, 10BASE -T collisions are remote collisions. Repeater A repeater is a layer-1 device that regenerat es and retimes frames. Router or Gateway A router is a devic[...]

NetTool Users Manual C-10 RTCP (Real-time Transport Control Protocol ) A protocol that provides insight on the perform ance and behavior of the RTP media stream. Runts Typically defined as an Ethernet frame which is less than 64 bytes. Depending on what dev ice is c ounting the runts, the frame check sequence may be good or b ad. SAP (Service Adver[...]

Appendices C C-11 SNAP (Subnetwork Access Proto col) An IP protocol that is an extended version of the IEEE LAN logical link control (LLC) frame. SNAP provides access to additional protocols and a llows vendors to create their own protocol sub-types. SNMP (Simple Network Management Protocol) Designed by the Department of Defense and commercial TCP/[...]

NetTool Users Manual C-12 Topology Topology is the organization of network components. The topology of Token Ring network component s is a ring. Transport Transport refers to the physica l method by which data is transmitted (e.g., Ethernet, Token Ring, etc.). Different physical network hardware an d cable layout are required for different transpor[...]

1 Index —A— AC adapter, 1-9 accessories (optional), 1-3 Addresses Used screen, 4-6 AutoTest, 3-1 cable test results, 3-2 PoE-powered device results, 3-7 services discovered, 3-4 single-ended results, 3-3 wiremap results, 3-2 —B— Backlight, turning on, 1-5 battery installing, 1-9 level indicator, 2-2 —C— care and maintenance, 1-2 connect[...]

NetTool Users Manual 2 —L— LEDs Link, Collision, and Error, 1-6 Utilization, 1-6 Left/Right arrow keys, 1-8 link and polarity levels, 3-6 Link Config screen, 4-2 —M— measurement units, changing , 2-2 menus closing current screen, 1-8 icons, 1-7 Main, 1-7 navigating, 1-8 paging up/down, 1-8 scrolling, 1-8 meters/feet, changing, 2-2 —N— N[...]

Index ( continued ) 3 creating and saving, 8-2 deleting, 8-3 routers discovered, 3-4 —S— scrolling through menus, 1-8 Segment ID screen, 5-2 SELECT key, 1-8 serial port connection, 2-8 servers discovered, 3-4 Servers Used screen, 4-7 single-ended connection, 2-5 specifications, A-1 Station menu, 4-1 —T— telephone numbers (Fluke Networks), 1[...]

NetTool Users Manual 4[...]