WAN links can be expensive and unless you have a lot of
money to shell out it is likely that you don't have dedicated gigabit bandwidth
available to you - so it makes sense to optimize the performance in any way we
can.
While there are dozens and dozens of different solutions out
there all offering similar results I chose WANOS (http://wanos.co) since it
seems to be fairly well established product and provides a reasonable pricing
model - either free (with limited support) or paid (with support and updates.)
WANOS can also be downloaded as a virtual appliance enabling
me to lab it up nice and easily!
I have outlined a few of the main / interesting features of
WANOS below:
- Packet Loss Recovery: Ensures that data is delivered
reliability over the LAN.
- Universal Deduplication: Provides cross-flow deduplication
on byte patterns (hence is protocol independent)
- Compression: Compresses data on the fly which is going
over the WAN link
- Quality of Service: Provides features such as traffic
shaping, tagging and classification.
The lab will consist of two sites (A and B) which go over a
capped WAN link of 10mbps.
I want to perform some performance tests over the two sites
with and without WANOS like follows:
Obviously being in a lab environment; packet loss, jitter
and latency are unlikely to be anything like the real world – although
fortunately we can emulate these within WANEM! Other factors to take into
consideration are the data de-duplication process and the processor speed (as
this may affect performance greatly.)
I will setup the WANEM virtual appliance (emulating the WAN
link) as follows:
|
Hardware
|
Value
|
|
RAM
|
2GB
|
|
Disk
|
8GB
|
|
Virtual NIC
|
Bridged x1
|
In part two we will start to build are virtual lab.
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