Provides access to the data streams passing through a high-speed network device and a switch.Models available to monitor both copper and optical links
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview10rev. 1Choosing between a SPAN, Aggregator, or full-duplex TAPThere are
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview11rev. 1combined), but its design requires that the analyzer be a specia
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview12rev. 1channel. For more details, see “When to use a SPAN/mirror port”
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview13rev. 1 Routes the integrated signal to the send channel of the SPAN/m
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview14rev. 1Cloning your SPAN/mirror portYou can still access your SPAN/mirr
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview15rev. 1Joining SPAN/mirror ports If you have a primary switch and a fai
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview16rev. 1NOTE: TAP BUFFERThe role of the buffer is to absorb traffic spik
Choosing between a SPAN, Aggregator, or full-duplex TAPChapter 1 TAPs Overview17rev. 1When to use a full-duplex TAP A full-duplex TAP is the only meth
Chapter 2 Copper TAPs18rev. 1C h a p te r 2
Major featuresChapter 2 Copper TAPs19rev. 1Major features The major features of the Black Box full-duplex Copper TAPs are: Passive access at 10/100 o
Installing the Copper TAPChapter 2 Copper TAPs20rev. 1 Patch cable(s) Redundant power supply Rack or bay mountIf any part is missing or damaged, c
Installing the Copper TAPChapter 2 Copper TAPs21rev. 1NOTE: INSIDE THE TAPWhen traffic comes in to Link A, two copies are made in theTAP. One copy is
Ports, LEDs, and power connectorsChapter 2 Copper TAPs22rev. 1and Link A then must use the same speed as Link B. If your link is under test as part of
Interpreting the Link and Speed LEDsChapter 2 Copper TAPs23rev. 1or both power supply sockets. Connecting both sockets to different external power sou
Interpreting the Link and Speed LEDsChapter 2 Copper TAPs24rev. 13 Connected. The Speed LED is on and the Link LED shows activity. The Link LEDs flick
Interpreting the Link and Speed LEDsChapter 2 Copper TAPs25rev. 1common speed and other capabilities. The LED pattern is that the Speed LEDs flash and
Technical specificationsChapter 2 Copper TAPs26rev. 1Technical specificationsThis section lists the dimensions, power requirements, supported media, a
Chapter 3 Optical TAPs27rev. 1C h a p te r 3
Major featuresChapter 3 Optical TAPs28rev. 1Major featuresThe major features of the Black Box full-duplex Optical TAPs are: Passive access at 1 Gbps
Installing the Optical TAPChapter 3 Optical TAPs29rev. 1Installing the Optical TAPAfter reviewing the information in “Deciding whether to use a TAP or
3FEDERAL COMMUNICATIONS COMMISSION and INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTSThis equipment generates, uses, and can radiate radio-f
Installing the Optical TAPChapter 3 Optical TAPs30rev. 1Figure 7 Cabling the Optical TAPTo cable the Optical TAP, follow the steps outlined below. Th
AttenuationChapter 3 Optical TAPs31rev. 1analyzer for details. If auto-negotiation is not disabled, the analyzer will not be able to receive the strea
AttenuationChapter 3 Optical TAPs32rev. 1copies. One part of the split signal is sent to the other device on the network, while the other is simultane
AttenuationChapter 3 Optical TAPs33rev. 1 Transmit power from the network devices Cable distance from the network device to the TAP Maximum inserti
AttenuationChapter 3 Optical TAPs34rev. 1Determining your power loss budget is a several step process that requires you to know the send power and rec
AttenuationChapter 3 Optical TAPs35rev. 1(Number of Connectors * Connector Loss) + (Fiber Length of Link A *Fiber Loss) + (Fiber Length of Analyzer *
AttenuationChapter 3 Optical TAPs36rev. 1This shows the power loss budget for Link A to Link B.The budget for the network side is 8.356 dB. Any split
AttenuationChapter 3 Optical TAPs37rev. 1This shows the power loss budget for Link A to the analyzer.The budget for the analyzer side is 6.751 dB. The
AttenuationChapter 3 Optical TAPs38rev. 1Use this page to create your own power loss budget from Link A to Link B if you are considering an Optical TA
AttenuationChapter 3 Optical TAPs39rev. 1mode cable. Check with the cable manufacturer to determine specific attenuation rates.Managing attenuationMan
7 El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante8 Servicio-El usuario no debe intentar dar se
Technical specificationsChapter 3 Optical TAPs40rev. 1Technical specificationsThis section lists the dimensions, power requirements, supported media,
Chapter 4 Aggregator TAPs41rev. 1C h a p te r 4
Major featuresChapter 4 Aggregator TAPs42rev. 1Major featuresAn Aggregator TAPs provides a full-duplex pass through link for the connection being moni
Standard and optional partsChapter 4 Aggregator TAPs43rev. 1Standard and optional parts Carefully unpack the TAP and check for damaged or missing part
Choosing an Aggregator TAP buffer sizeChapter 4 Aggregator TAPs44rev. 1To monitor links that are well over 50% utilization for minutes at a time, a fu
Installing the Copper Aggregator TAPChapter 4 Aggregator TAPs45rev. 1Figure 9 Bandwidth utilization that a buffer can absorb on a gigabit networkInst
Installing the Copper Aggregator TAPChapter 4 Aggregator TAPs46rev. 1 Connect the TAP to your analyzer or other monitoring device using standard Ethe
Ports, LEDs, and power connectorsChapter 4 Aggregator TAPs47rev. 1Other things to consider: “Can I daisy chain an Aggregator TAP?” on page 52 “Can I
Interpreting the Link and Speed LEDsChapter 4 Aggregator TAPs48rev. 1Figure 12 Back panel showing power connectors and serial numberInterpreting the
Interpreting the Link and Speed LEDsChapter 4 Aggregator TAPs49rev. 1whether there is any traffic present. If a Link LED is unlit, there is no functio
5rev. 1ContentsChapter 1: TAPs OverviewSecurity, convenience, and dependability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interpreting the Link and Speed LEDsChapter 4 Aggregator TAPs50rev. 1Link ports Copper: Straight-through RJ-45 cable or crossover cableCopper-to-Optic
Chapter 5 FAQ and Troubleshooting51rev. 1C h a p te r 5
What happens if my TAP loses power?Chapter 5 FAQ and Troubleshooting52rev. 1What happens if my TAP loses power?If your copper TAP loses power (optical
Can I “team” NICs in my analyzer?Chapter 5 FAQ and Troubleshooting53rev. 1transmission unit), the receiving device could restart the negotiation proce
Can I “team” NICs in my analyzer?Chapter 5 FAQ and Troubleshooting54rev. 1NOTE: REQUIREMENTSYou need at least one IntelPro/1000 card that supportsAdva
How do I connect my failover devices?Chapter 5 FAQ and Troubleshooting55rev. 1C Choose the “Team with other adapters” option and then click New Team..
Not seeing traffic at the analyzer from the TAPChapter 5 FAQ and Troubleshooting56rev. 1Not seeing traffic at the analyzer from the TAP If your TAP is
Choosing crossover or straight-through cablesChapter 5 FAQ and Troubleshooting57rev. 1nanosecond. A smaller MTU forces a server and client to redo the
VLAN tags not visible at the analyzerChapter 5 FAQ and Troubleshooting58rev. 1VLAN tags not visible at the analyzerAll TAPs pass VLAN tags with the pa
Numerics–CIndex59rev. 1Legend: ff=Figure, t=TableIndexNumerics10/100 network 1310/100 TAPsee also Copper TAPauto-negotiation 22passive 23straight-thro
6rev. 1Interpreting the Link and Speed LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D–OIndex60rev. 1Legend: ff=Figure, t=Tableheat dissipation 20internal processing 21LEDs 22parts 19ports 22power connectors 22power loss 21rear panel 2
P–SIndex61rev. 1Legend: ff=Figure, t=Tablecable distance 33cable lengths 35ffcables 31decibels 34features 28maximum insertion losses 33multimode 33, 5
T–WIndex62rev. 1Legend: ff=Figure, t=TableTTCP stack 56UUNIX 56up-converting 44VVLAN tags 58Wwhen to use, SPAN 8
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Chapter 1 TAPs Overview7rev. 1C h a p te r 1
Security, convenience, and dependabilityChapter 1 TAPs Overview8rev. 1Thank you for purchasing the TAP: the most robust, secure, and convenient mechan
Deciding whether to use a TAP or a SPAN/mirror portChapter 1 TAPs Overview9rev. 1Most enterprise switches copy the activity of one or more ports throu
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