Net Optics 10_100_1000 Copper Port Aggregator - Manual (Page 5)

10/100/1000 Copper Port Aggregator Tap
1
Introduction
Net.Optics.10/100/1000.Copper.Port.Aggregators.provide.ultra-efficient.
access.to.critical.triple-speed.links ..This.pioneering.technology.enables.any..
device.to.simultaneously.monitor.a.full-duplex.link.using.only.one.NIC.per.
monitoring.device .
Typically,.full-duplex.monitoring.with.a.network.tap.requires.two.NICs.(or.a.
dual.channel.NIC).–.one.interface.for.each.side.of.the.tapped.full-duplex.con-
nection ..The.10/100/1000.Copper.Port.Aggregator.combines.and.regenerates.
these.streams,.sending.all.aggregated.data.out.two.passive.monitoring.ports .
Buffering Prevents Lost Data
The.10/100/1000.Copper.Port.Aggregator.is.designed.to.handle.the.combined.
traffic.of.a.single.full-duplex.link ..Normally,.the.traffic.should.be.below.the.
receiving.capacity.of.the.NIC .
When.the.traffic.queue.exceeds.the.capacity.of.the.NIC,.the.Tap.buffers.the.
overflow.of.up.to.one.gigabyte.of.data.for.both.sides.of.the.full-duplex.con-
nection ..The.buffer.clears.automatically.when.the.traffic.volume.falls.below.
the.receiving.capacity.of.the.NIC ..For.example,.if.there.is.a.traffic.burst.on.a.
1000.Mbps.network.port.and.a.monitoring.device.is.now.receiving.1 .2.Gbps.
of.traffic,.the.Tap.buffers.data.until.the.burst.is.over ..The.Tap.then.sends.the.
buffered.data.to.the.monitoring.device.until.the.buffer.is.cleared .
Simple to Deploy
Net.Optics.10/100/1000.Copper.Port.Aggregator.is.a.simple.plug-and-play.
solution.addressing.the.fact.that.many.monitoring.systems,.including.most.
software-based.solutions,.only.offer.a.single.channel.NIC,.limiting.full-duplex.
visibility ..While.adding.a.second.NIC.can.help.maintain.data.integrity.and.
visibility,.there.is.a.tradeoff.in.flexibility.and.ease-of-use ..An.operating.
system.and.NICs.that.enable.binding.are.often.required.to.achieve.the.same.
functionality.as.the.10/100/1000.Copper.Port.Aggregator ..In.contrast,.the.
10/100/1000.Copper.Port.Aggregator.requires.no.additional.components.or.
configuration.on.the.monitoring.devices .
Note:_________________________________________________________________
All ports that connect to the 10/100/1000 Copper Port Aggregator must be
configured for autonegotiation. The links will not function properly with
fixed speed devices.
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