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When the mouse hovers over a column header that forms part of the fixed columns group, the table highlight the hovered header and the header of the same index in the moving columns group.

When you decrease interlayer distance until 0, then, you can't increase it.

When importing sndlib txt file in net2plan version 0.5.1 sndlib file option doesn't apeear. And if n2p file is created from a sndlib imported file in net2plan 0.4.2 and try again to import this new file in net2plan 0.5.1, it gives me an error loading network design.

Clicking the "Remove all" button in the classpath editor cleans the table from all included jars. However, if you close the editor and reopen it, all the entries that supposedly were removed are back.

This has been seen in text fields such as the network name and layer name.

GIT: Latest version (master)

commit 8cd0fdfc96022d23af16e7feb5d5503412ad065f (HEAD -> master, origin/master, origin/HEAD)
Merge: 355f4b09 878b79be

Start net2plan:

java -jar Net2Plan.jar

Running a simple WDM-scenario:

• grid 4 node ( n1 <-> n2 <-> n3 <-> n4 )
  • bidirectional links
  • demand from n1 -> n3 ( 2 disjoint routes)
  • running simulator
    • Event generator: Online_evGen_wdm
    • Provisioning: Online_evProc_wdm

After I stop the simulation and request a report I get the following error:

Thu Jan 25 08:24:16 BRST 2018
java.lang.NullPointerException
com.net2plan.internal.sim.SimStats.getResults(SimStats.java:1058)
com.net2plan.internal.sim.SimKernel.getSimulationReport(SimKernel.java:368)

The line SimStats.java:1058 is trying to load the following resource:

return HTMLUtils.getHTMLFromXML(xml, SimStats.class.getResource("/com/net2plan/internal/sim/SimStats.xsl").toURI().toURL());

The SimStats.xsl file does not seem to get packaged by mvn in the Net2Plan.jar file.

When removing a link, if a route was traversing the lnk in the past, but not now, the route is not removed. However, the route keeps the link in ¡side the sequence of links traversed when the route was removed. Solution: the route original sequence of links should be set to e.g. the current route

Solved! Date: 20160905

When you load a multilayer topology (for example, 7nodes_IPoverWDM), sometimes the layers exchange their positions (WDM layer is over IP layer).

I am trying to work with examples (such as 7 node network) and to start with I would like to examine some basic algorithms (as implemented in the tool) on existing examples. To start with I only want to focus on WDM layer algorithms such as different RWA flavors.
Can you please detail the steps for using a example network?
I assume for online simulations, once the network is selected, traffic is generated and the corresponding algorithm will perform optimization for the corresponding traffic module generation.

Thanks
Quote ·
Comments
raj
September 15
To clarify the issue, I have tried net2plan for the exercise 3.7 of the book to run the 7 node network (example provided by the resources)
I performed the following steps

1. load the "7-node network" for both topology and traffic
2. from online simulation tab, selected the "Online_evGen_generalGenerator"
3. ................ selected the "Online_evProc_generalProcessor"
4. run the simulation (with all default values)

Observation: simulation starts and refreshed successfully. After a while I stop and "update" the "simulation report". IT fails and failed operation message pops up recommending checking the "console".
When I check the "console" I see the following

Fri Sep 15 11:02:17 EDT 2017

java.lang.NullPointerException
com.net2plan.internal.sim.SimStats.getResults(SimStats.java:1058)
com.net2plan.internal.sim.SimKernel.getSimulationReport(SimKernel.java:368)

Would you please be able to help?
Thanks

When a route is selected, the size of the focus panel for these route is not properly calculated if there are resources associated to the given route. Making the resources to not appear or appear non-properly.

OSM cannot connect to the tile server while Net2Plan is running under Linux.
The result is a background filled with gray clocks.

• Changing the row or column order in any of the tables makes the rows be unselectable. Yet, the effects of selecting the row are displayed on the canvas.

For NVidia users:
Having activated the "Share" function on the NVidia Geforce Experience environment disables some of the shortcuts that Net2Plan uses. As it overwrites those keys with its own functions. Some of the known lost shortcuts are:

Alt+F12: For console showing.

If you add attributes to the Layer-tab, the resulting n2p file cannot be loaded after saving it.
Other entities such as network,node or link do not exhibit this problem.
It does not seem that the xml is invalid, it seems to have to do with the meta-model for layer-entities.

Kind regards,

Fabian

PS: I also tried this with the 0.5.2 zip version.

Trying to select a link over the canvas can become frustrating because the hitbox of the link is way too small. A bigger hitbox would help.

When developing algorithms, a line of code such as:

IntMatrix1D v = IntFactory1D.dense.make(6,1);

Gives the following exception when executed:

Exception in thread "main" java.lang.NoSuchMethodError: edu.emory.mathcs.utils.ConcurrencyUtils.getThreadsBeginN_1D()I
 at cern.colt.matrix.tint.IntMatrix1D.assign(IntMatrix1D.java:488)
 at cern.colt.matrix.tint.impl.DenseIntMatrix1D.assign(DenseIntMatrix1D.java:440)

This is a known error (among others) of ParallelColt-0.10.1. The fix is to upgrade to version 0.11.4 (available at https://github.com/rwl/ParallelColt/)

• Right clicking on the topology canvas in order to bring out the "Add node", "Add link"... popup does not seem to work under Linux. The popup menu does not appear at all.

When the links between two nodes are collapsed, I believe it could be useful if an arrow is drawn over each side telling if the collapsed link forms an unidirectional or bidirectional link.

• What-If anaylisis tool text area is hidden when the window is not big enough, making it impossible to read what is inside.

When trying to open the "View/Edit backup routes" for a route at the route table, an internal error appears that does not allow this action to carry on.

While selecting a succession of elements in the canvas; if one of the elements that formed that succession is removed, the focus panel loses track of the correct succession of items and starts to behave incorrectly.

Software in Linux based operating systems is expected to come from the distribution's software repositories. (or a distribution endorsed package sharing method) A random zip on a website is alien to this ecosystem, as it does not integrate into the operating system or receive updates with the rest of the software.

A proper package would integrate net2plan within the distribution, allowing it to be called from anywhere, providing a launcher icon... it should also pull ipopt and glpk as dependencies automatically, making the installation faster.

I created an Arch Linux package and uploaded it to the user repositories that provides all of that. It's already being already used by some Arch-using fellows at university.

An Ubuntu ppa would be the simplest way to provide a package for the greatest range of users. Anyone can set them up, and it only requires packaging the software into a .deb file. Users of the ppa would get automatic updates and the user experience that is expected from a well integrated application.

Uploading packages to other distributions such as Debian or Fedora, so that anyone can install them without adding repositories requires a more lengthy process. It can also take years for those packages to reach end users (as most use LTS versions of Ubuntu), so that's not really the aim of this issue piece.

Thank you for your time and effort in this project.

On start-up, a topology that has received no changes throws an error "Design is empty" when tried to save it. This behavior can be unexpected, as what many people do first thing when they run the program is to save to a file.

When selecting a link composed of multiple links between two nodes, the one that is selected is highlighted by making it bigger than the others. The problem with this is that this size can hide the links below, making it seem that there is nothing there.

Clicking on the "Take snapshot" button goes through a dialog that allows the user to save the canvas into the image. After the image is taken, the canvas color changes into a darker tone and it does not seem to recover.

• Adding and removing nodes from the right-click menu of the node's table ends up with an exception that breaks the correct functioning of the table.
• This problem is yet to be checked on the other tables.

Under the tab "Links", column "Propagation delay (ms)". Although it is stated the delay is measured in ms, the value is set in seconds.

• Expanding attributes into multiple columns at any table makes the tips of the column headers to disappear.
• Collapsing the attributes into a single column does not make this tips come back.

The function getKMinimumCostMulticastTrees contains a bug concerning the input parameter DoubleMatrix1D linkCost. When said parameter is null, in line 1644 the following check is made:

op.setInputParameter("c_e", linkCost == null ? DoubleFactory1D.dense.make(E, 1) : linkCost, "row");
As the new created DoubleMatrix1D is not saved and referenced to "linkCost", it produces a NullPointerException in line 1622:
treeCost += linkCost.get(e);

A possible solution could be to check if linkCost is null at the beginning of the function, and initialize it if necessary.

In the resulting image of the snapshot function, the nodes Ids are highlighted with a white square. Making it impossible to distinguish one from the other.

Net2Plan should replace a blank in the textfields "solveRName" and "solverLibraryName", and replace it b ythe default solver and library. However, it is not making it.

Change to make it more elegant: the algorithms are the ones using the solver or the default if receive "", and trhe same for library. Have a static Net2Plan method for supporting this

It shows CPU time as the time between simulation start and simulation end when it pops up "Simulation Finished", but when you click OK it 'updates' to show the time between simulation start and click time.

Easy to reproduce: run ~100 events, it will finish in <1 sec, but wait a bit to click OK and it will then show ~10 sec.

The Simulation Information table in the Simulation Report tab shows the correct CPU time.

• Net2Plan 0.5.0.3 contains new parameters that old topologies lack, making those topologies give an error when loading on the new version.

I'm using the 0.5.0 release. Starting from a blank network, I've created a second layer, by going to the View/Edit network state -> Network tab and right-clicking on the Layer information panel.

I am now trying to change the new layer's name and routing type. However, when I go to the View/Edit network state -> Layers tab, the information shown is always about the first layer.

I tried selecting the second layer in the Layer information panel on the View/Edit network state -> Network tab, and then going to the Layers tab, but still the information shown is about the first layer.

Am I missing something? How can I configure the other layers?

The License description on the main page reads "As a consequence of this, you may use parts of Net2Plan or the complete package inside your own programs for free, can make money from them and do not have to disclose your code. Although, you are obliged to mention that you are using Net2Plan in your program."

This does not fit with the LPGL v3 license under which this program is distributed. LGPLv3 (and newer) is a license that is usually used for libraries that allows non-free programs to dynamically link with said library. The description above is more in line with an Apache 2.0, BSD (2 or 3 clause) or MIT license. Either the text or the license should be updated to avoid future conflicts.

Taking the node table as an example, clicking on the show/hide cell of the last gray row makes a checkbox appear that will throw a new exception. Afterwards, the table becomes unresponsive.

When a topology has no demands defined, it is not possible to add a new route. The add a single route button is disabled because of that reason. However, the additional add buttons such as "Add one route per demand" are visible but their action does nothing at all.

• Changing the value of a row field when the rows have lost their original order makes the table throw an error.

Right now, two nodes are able to share the same name. These two nodes are uniquely identified by their ID or Index. However, there are multiple dialogs that show a list of the nodes, and having two selectable items with the same name can become confusing.

Hi!

I got a problem in Jom _Operator_POW.

in command <DoubleMatrixND TT = Opt.parseExpression("200^2").evaluateConstant()>

The method _Operator_POW stopped at line 72.

The user can move a node by dragging it while pressing control, this movement is reflected on the table but not on the focus panel.

Improve the net2plan options window by adding the "..." buttons next to the file path. Making it easier to select a folder.

Changing between two topologies that have a different number of layers makes the undo/redo option stop working.

The icon for the link coloring dialog is called "Change link style". This can confuse the user, as it makes him believe that this function allows him to the change the way the links are drawn on the canvas.

In addition, the link coloring dialog is unnecessarily narrow. Making it more of a square instead of a rectangle could help its visualization.

The Show/Hide column at the link table is inverted, meaning that when the checkbox is off it shows the link and when its on it hides the link. All links are shown when the topology is first loaded though.

Also, hiding all the links of a layer does not reflect this fact on the Show/Hide column.

On "View/Edit Network state > Layers > Name"

As soon as you type one character it jumps out to the box and you have to click again to keep Typing.

This is you have to name the layer character to character