Very good questions. Let me try and take them one at a time. Some of the answers you will likely find in the CM GUI help (upper-left corner is the Help button), or in the online documentation. But let's add a little more color and detail.
1)When we pull bandwidth Optimization report, on Y-Axis the graphs says Effective Capacity .What is Effective Capacity?
Basically, the "effective increased bandwidth capacity" is telling you how much additional WAN bandwidth you've gained because of the optimization. It will chart somewhere between 1 times and 100 times. Typically it charts all traffic, though you can configure it to chart traffic for specific Applications.
The CDM online help gives the formulas used to chart the graph:
Effective WAN Capacity = 1 / (1-% Reduction Excluding Pass-Through)
% Reduction Excluding Pass-Through = (Original Excluding Pass-Through - Optimized) / (Original Excluding Pass-Through)
2)what is reduction % excluding and including passthrough
Looking at the formulas given above might help you understand. The one is a reduction ratio compared to only the original traffic that is optimized. The other is a reduction ratio compared to all original traffic, whether it is optimized or not. So, if you want to know what kind of optimization you are getting for the traffic that you configured to have optimized, look at the "excluding pass-through" numbers. If you want to know the positive effect that optimization is having on your full traffic load, take a look at the "including pass-through" numbers.
3)What is effectivity capacity including and excluding passthrough ?
The effective capacity is what kind of throughput you can potentially realize on the WAN -- assuming you would fill it to 100% capacity -- because of the level of optimization you are seeing. The "including" numbers show you the effect of optimization compared to all the traffic passing through the WAE whether it is optimized or not. The "excluding" numbers show the effect of optimization compared only to the traffic that is receiving optimizations.
4)With the help of which report, we can show the customer that the file download which took 10 mins in first attempt, is downloaded in 10secons in next attempt?
This one is a little trickier. The reports are much broader than a single connection. They are for all traffic, or for traffic that matches specific defined Applications. You could create a separate Application and matching classifiers for the client and/or server IP addresses and/or ports, run the test, then configure the charts to only show you the data for that Application. By default, statistics for an Application aren’t charted unless you check the "Enable Statistics" box when defining/editing the Application.
5)How to show that the bandwidth utilization has decreased by which %.
You want to look at the % reduction numbers you asked about in #2 above.
6)Which report says that the applications have become this much time faster?
These questions are normally put forwarded by many customers ? Can you please help me with your expertise answer ?
This is probably the hardest question to answer.
"Faster" isn't always easy to define. You are probably talking about user experience rather than statistics found in a network device. What determines that experience? A web page fully populating with all the pictures? A CIFS-based application that saves a file? A custom application that collects data from different servers over different protocols to perform some operation? Much of that is subjective and based on multiple individual requests, sometimes over different protocols.
What we can provide are statistics to show the effect of WAN optimization and application acceleration for specific types of traffic. We can't show you that displaying a web page is N times faster with WAAS, because we don't know which of all the many HTTP requests that are made are specific to the user experience. But we can show that each of the requests received so much overall optimization, so much optimization from DRE, so much optimization from LZ, so much added benefit from HTTP acceleration.
What you would probably do is collect some base-line timings for performing certain user activities, then perform the same operations both cold (first pass) and warm (subsequent passes). Back up those timing numbers with reports from the CM GUI, and perhaps even the "show statistics connection connection-id ". Which reports to use? Start with those Optimization and Acceleration reports. Those are the reports we expect will give the most complete/accurate pictures of the benefit of WAAS. You can also create and even schedule custom reports as needed.
