Gaining competitive advantage with ultra-low latency FX connectivity >>>
optimise any environment to achieve the optimal
solution that can be achieved. Whilst there are a
number of vendors who talk of what is possible,
our customers, across multiple asset classes, are only
interested in performance that is demonstrable where
not only can we articulate different fibre paths but also
show them in real-time.”
More effective measures can be applied to end-to-end
network latency says Moore who defines four specific
areas – serialisation, propagation, network CPE and
service transmission. “Serialisation occurs when
packets are transferred onto the wire. The higher the
bandwidth of the service, the less latency is incurred
hopping on and off the circuit therefore raising the
bandwidth of the line end-to-end for the service and
decreasing the latency accordingly.”
“Propagation is the result of the physical length the
data packets have to travel down the Service line.
Assuming most WAN services these days physically
use fibre for its layer one services we can ascertain
sitting back because what is considered low latency now the additional delay. Light travels at 0.00548ms
will not be considered low latency in the near future.” per kilometre over Fibre. Therefore if the service is
located 100km away from the source this will add
Distance latency is a particularly acute issue for the 0.548ms onto the end to end delay.”
FX market, says Moore, because it is one of the only
true global marketplaces. “As a company dedicated “Network CPE delay is the additional delay incurred
to eradicating latency across the technology stack we by Ethernet Switches and Routers that translate and
route the packets from end to end. Each in line device
will have a latency cost and this can have a significant
impact depending on the amount of devices you have
in line. ServiceTransmission delay is the additional
delay incurred by the underlying transmission
networks that support the Network,” he says.
End to end design
Direct DWDM CPE systems have the lowest latency
and can incur sub micro second latencies on some
of the newer devices hitting the market. Any service
which translates signals from electrical to light
and back again will also incur most latency as the
transformation from light to electrical and back again
has a latency penalty.
Moore comments that, “Whilst all of the above are
key aspects to any low latency strategy Fixnetix focus
not just on the network where Fixnetix contract withAlistair Moore
over 18 different fibre providers but also all software“There is no point getting your latency down to
and hardware components.This enables us to delivera certain level and then sitting back because
a complete end-to-end design of services using bestwhat is considered low latency now will not be
of breed new technology and tune performance fromconsidered low latency in the near future.”
network interface card (NIC) to NIC.”
|april 2010 e -FOREX 67
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