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Table of Contents
Related Manuals for Viavi 10/100 Copper nTAP
Summary of Contents for Viavi 10/100 Copper nTAP
- Page 1 10/100 Copper TAP User Guide 7 Feb 2018...
- Page 2 In the European Union, all equipment and batteries purchased from VIAVI after 2005-08-13 can be returned for disposal at the end of its useful life. VIAVI will ensure that all waste equipment and batteries returned are reused, recycled, or disposed of in an environmentally friendly manner, and in compliance with all applicable national and international waste legislation.
- Page 3 When to use a full-duplex TAP....................13 Chapter 3: Features...................... 14 Features............................. 14 Chapter 4: Standard and Optional Parts..............15 Parts..............................15 Chapter 5: 10/100 Copper nTAP Installation..............16 Installing............................16 Chapter 6: LEDs and connection sequence............... 18 Chapter 7: Technical Specifications................20 Technical specifications........................ 20 Chapter 8: Troubleshooting..................
- Page 4 VLAN tags not visible at the analyzer..................26 Memory.............................26 Maximum frame size........................26 Understanding why Link B is active when Link A is offline..........26 Chapter 9: FCC compliance statement..............28 Index..........................29 Table of Contents (7 Feb 2018) — Archive/Non-authoritative version...
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Page 5: Chapter 1: Getting Started
Chapter 1: Getting started 10/100 Copper nTAP Overview Thank you for purchasing the 10/100 Copper nTAP. Your new product is the most robust, secure, and convenient mechanism for network analyzers and similar devices to copy data streams from high-capacity network links. -
Page 6: Choosing Between A Span, Aggregator, Or Full-Duplex Tap
TAP’s output, providing accurate timing, and recombining the data for analysis. Table 1 (page 7) list the advantages and disadvantages of three common methods of accessing traffic from full-duplex networks for analysis, monitoring, or forensics: 10/100 Copper nTAP - 6... -
Page 7: Chapter 2: Why Choose A Tap Or Span Port
Table 1. Methods of accessing traffic Aggregator SPAN/Mirror Full-Duplex Requires power Better protection against dropped packets Uses single-receive capture card Uses internal buffer to mitigate traffic spikes Suitable for networks with light to moderate traffic with occasional spikes Passes OSI Layer 1 &... -
Page 8: Deciding Whether To Use A Tap Or A Span/Mirror Port
Traffic aggregators, like the Observer Matrix, allow you to copy and filter ♦ full duplex traffic. Because full-duplex Ethernet links lies at the core of Choosing between a SPAN, Aggregator, or full-duplex TAP 10/100 Copper nTAP (7 Feb 2018) — Archive/Non-authoritative version... - Page 9 most corporate networks, ensuring completely transparent analyzer access to those links is critical. Figure 1: TAP versus SPAN Table 2. TAP versus SPAN SPAN/mirror port Pros Greatly reduces the risk of Low cost dropped packets Monitoring device receives Remotely configurable from all packets, including physical any system connected to the errors...
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Page 10: When To Use A Span/Mirror Port
SPAN/mirror port. Hardware and media errors will also be impossible to troubleshoot through a SPAN/mirror port, as these errors are not mirrored to the analyzer. Choosing between a SPAN, Aggregator, or full-duplex TAP 10/100 Copper nTAP (7 Feb 2018) — Archive/Non-authoritative version... - Page 11 Cloning your SPAN/mirror port You can still access your SPAN/mirror port even if all of your SPAN/mirror ports on your switch are used. This is fairly common, and you can use a TAP to produce two copies of the SPAN/mirror port. By cloning a SPAN/mirror port you get the benefits of a duplicate copy of the traffic and no security risk.
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Page 12: When To Use The Aggregator Tap
Aggregator TAP to supply an analysis device with a standard NIC (i.e., single- receive) interface can be an economical choice. The Aggregator TAP can provide Choosing between a SPAN, Aggregator, or full-duplex TAP 10/100 Copper nTAP (7 Feb 2018) — Archive/Non-authoritative version... -
Page 13: When To Use A Full-Duplex Tap
All TAPs from VIAVI, except the Aggregator TAP family, are full-duplex TAPs. Choosing between a SPAN, Aggregator, or full-duplex TAP Chapter 2: Why choose a TAP or SPAN port... -
Page 14: Chapter 3: Features
Chapter 3: Features Features Key features of the 10/100 Copper nTAP include: Passive access without packet tampering or introducing a single point of ♦ failure All traffic (including errors) is passed from all OSI layers for analyzing ♦ Enhanced security because the nTAP does not require or use an IP address, ♦... -
Page 15: Chapter 4: Standard And Optional Parts
Chapter 4: Standard and Optional Parts Parts The 10/100 Copper nTAP comes with several parts. If any part is missing or damaged, contact VIAVI immediately. The 10/100 Copper nTAP ships with the following items: 10/100 Copper nTAP ♦ Quick Reference Card ♦... -
Page 16: Chapter 5: 10/100 Copper Ntap Installation
Chapter 5: 10/100 Copper nTAP Installation Installing Prerequisite(s): Decide where to place the nTAP and physically mount it, if desired. ♦ Depending on the form factor purchased, this may be in a drive bay, rack mount bracket, or wherever it is most convenient. Keep the nTAP horizontal for efficient heat dissipation. - Page 17 Figure 4: Cabling the 10/100 Copper nTAP Caution: Before you temporarily break the link between the device of interest and the network, you may want to shut down access to that device and notify users of the down time. 1. Ensure that power is connected to the nTAP. You can provide power to one or both power supply sockets on the back panel of each nTAP.
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Page 18: Chapter 6: Leds And Connection Sequence
Chapter 6: LEDs and connection sequence The 10/100 Copper nTAP is passive. The 10/100 Copper nTAP supports Power over Ethernet (PoE). When the 10/100 Copper nTAP experiences power loss, the following occurs: If you are using a redundant power supply or the TAP is attached to an ♦... - Page 19 2. Connecting. The link parameters are attempting to connect using the parameters determined during the capabilities search. The LED pattern is that the TAP shows the connection speed while the Link LEDs continue to flicker. 3. Connected. Both link ports/connections are connected to the link partners at a common speed.
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Page 20: Chapter 7: Technical Specifications
Chapter 7: Technical Specifications Product dimensions, weight, power consumption, installed operating system, RAM and details along with photos of the appliance. Technical specifications This section lists the dimensions, power requirements, supported media, and environmental requirements. Both power connectors are located on the back panel, along with the model information and serial number. - Page 21 Operational Current Typical: <= 1.8 amps; Max: <= 2.8 amps Power Dissipation Typical: 8 watt; Max: 14 watt Environmental requirements Temperature range 32°F - 113°F / 0°C - 45°C (operating): The fanless cooling design relies on conduction and convection from the nTAP casing. Your installation environment must provide enough cool airflow for the nTAP casing to maintain an operating temperature less than 113°F/45°C.
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Page 22: Chapter 8: Troubleshooting
Chapter 8: Troubleshooting What happens if my TAP loses power? The 10/100 Copper TAP, Optical-to-Copper Conversion, and Optical-to-Copper Aggregator TAPs do not require any power on the Link ports. When a loss of power occurs, the Analyzer ports stop working, but the Link ports stay connected without any need for the endpoint devices to renegotiate their connection. -
Page 23: Not Seeing Traffic At The Analyzer From The Tap
♦ Try swapping the cables between the ports. ♦ The nTAP is receiving power using a VIAVI power adapter. The Link A and ♦ Link B lights flash when there is traffic traversing through the nTAP, which indicates the nTAP has power. -
Page 24: How Do I Connect My Failover Devices
The TAP then restarts its search phase. Until the Link B device is working again, the TAP repeats the following steps: 1. Search. 2. Determine if Link A is up. If not, keep searching. How do I connect my failover devices? 10/100 Copper nTAP (7 Feb 2018) — Archive/Non-authoritative version... -
Page 25: Choosing Crossover Or Straight-Through Cables
If you encounter any rare issue with cable choice and your TAP, test your ♦ TAP with the opposite cable type and then contact VIAVI Support. Typically, when a TAP is installed the existing cable that connects one device to another is used as half of the link. -
Page 26: I Am Seeing Crc Errors On My Network
If you are seeing an uncommonly high number of CRC errors, this could indicate that there is an issue with the TAP, but it may also indicate that the TAP is fine and there are other problems on your network. Contact VIAVI Technical Support for assistance. - Page 27 redundant link if Link B goes down, and it keeps the router or switch active if the server goes offline. Should Link A come back up, negotiations to get the link back online are enhanced because Link B already has an active link. As already stated, Link B is an active port.
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Page 28: Chapter 9: Fcc Compliance Statement
Increase the separation between the equipment and receiver. ♦ Connect the equipment into an outlet on a circuit different from that to ♦ which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. ♦ 10/100 Copper nTAP - 28... -
Page 29: Index
Index Numerics 10/100 network 10 half-duplex 5 10/100 TAP 22 half-duplex, SPAN 5 advantages IntelPro 23 SPAN 6 aggregator 26 analyzer 23 joining 11 auto-negotiation 23 joining, SPAN 11 cables 25 jumbo frame 26 dual-receive capture card 6 no traffic from TAP 23 ports, unidirectional 22 single-receive capture card 6 latency 22... - Page 30 redundancy, see failover 24 redundant 26 Regulatory Compliance 28 risks, SPAN 10 runts 8 security 5 SFP modules 23 single-receive capture card 6 analyzer 6 SPAN 12 SPAN 6, 26 advantages 6 as bottleneck 6 choosing NIC 23 cloning 11 failover 11 half-duplex 5 joining 11...
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