XControl (question sur "data in")

J'ai construit un XControl (indicateur)
(ceci dit, pas facile d'aborder les XControl ... pas beaucoup de docs, peu d'explications, Il faut chercher par soi-même)
J'ai besoin de lui envoyer 2 données ... un U32 et un booléen.
J'ai configuré "data in" (type def data 1.ctl) comme étant un cluster comprenant (1xU32)+(1xbooléen)
Unbundle dans le XControl ... ça fonctionne.
ma question :
Serait-il possible de ne pas utiliser de cluster pour "passer" mes 2 données au XControl ? ... il me faudrait alors 2 entrées.
Autrement dit,
"data in" me donne une entrée ... que je peux configurer en U32
Serait-il possible de créer une 2eme entrée de données au XControl ?
Je pourrais alors configurer cette 2eme entrée en booléen (via un 2eme type def).
et me passer du Cluster.
Cela ne me dérange nullement d'utiliser un Cluster d'entrée.
Simplement dans un contexte théorique et d'apprentissage de LV, je me pose cette question.
Merci à tous.

Bonjour Olivier,
Toujours très chouette tes interventions.
Oui, en effet, je me frotte aux XControl, passionnant comme tout le reste.
Avant cela, j'ai touché un peu aux VIs Polymorphes ... une récréation à côté des XControls
Pour les XControls la doc est rare et peu approfondie sur le Net, il faut "y aller" par soi-même.
"Dernière chose, je pense que tenter de modifier le connecteur du Facade.vi est voué à l'achec"
Oui, bien sur ... "tout cela" est géré par LV en arrière plan (je l'ai parfaitement compris),
vouloir ajouter un connecteur d'entrée à un XControl ... autant vouloir ajouter un 2eme compteur d'itérations à une boucle For.
Je reprends tes remarques :
1) oui, ça j'ai compris.
2) ça je comprends moins.
    un XControl sert à créer un Control ou un Indicateur personnalisé, avec un comportement particulier.
    Mais ... pour "séparer" les parties de code ... je ne "sens" pas la chose.
    Cela ne me semblait pas être le "but premier" d'un XControl ... mais plutôt des sous-VIs.
3) super remarque.
4) comprends pas ... De toutes façons il m'est impossible d'utiliser un autre type de données que ceux repris dans LV.
5) et 6) super remarque ... à écrire sur le mur, derrière l'écran.
7) s'inspirer des objets LV ... ? ... à quels objets penses-tu (par exemlpe)
J'ai construit un XControl perso pour commander un afficheur 7 segments,
ça fonctionne tip-top, mais cela reste un XControl assez simple.
Pour le moment je regarde de près 2 exemples du Net ("LedXCtrl" de Aristos Queue et "BlinkingLed")
J'ai déjà fait connaissance avec le Cluster "state" et avec "Display State Change" ... je commence "à voir".
Pour les Propriétés et Méthodes que l'on peut ajouter à un XControl ...
J'y arrive ... la bête est juste devant moi, on se regarde

Similar Messages

XControl (question sur l'initialisation)

Bonjour à tous,
Un XControl (indicateur).
Quand je le place sur le FP ... il se positionne comme un "controle" ... et apparait aussi comme tel sur le BD.
Cela fait 2hrs que je retourne ce pb dans tous les sens.
Le VI "init", le "container state", le code dans Facade/display state change ... rien n'y fait.
Existe-t-il un moyen, quand je place mon XControl sur le FP, qu'il se positionne directement en "indicateur" (??)
merci à tous.

Désolé de ne pas avoir répondu plus rapidement. Votre réponse est "dense" et demandait du temps pour y répondre,
ce que je n'avais pas dans l'immédiat.
Bon.
"Ou avez vous lu ça ? Dans les commentaires du VI sur l'évènement dans la structure ?" ... oui.
Quand je crée un nouveau XControl ... New Project / My Computer (clic-droit) / New / XControl
LavVIEW me "donne" un XControl type de "départ".
Première point : Dans le FP de "init", je n'ai pas le "flag" dont vous parlez.
J'ai : Previous Version, Previous State, Current State, Container State, Default Indicator State, Default Control State ... mais aucun "flag".
deuxième point :
voici ce que je lis en commentaires, dans le BD de "facade", pour les events "Display State Change" et "Direction Change"
Moi j'ai ça pour Événement Changement de l'état d'affichage (dans le documentation de LabVIEW) :
"Généré sur le VI Façade si l'état d'affichage de la commandeX change suite à l'invocation par l'utilisateur d'une propriété ou d'une méthode sur la commandeX.."
Changement de l'état d'affichage == Display State Change
et pour "Display State Change", moi j'ai ceci (comme sur l'image ci-dessus)
Display State changed as a result of dropping a new instance of this XControl, copying,
undoing an operation or executing a custom property or method on this XControl. Update the appearance accordingly.
On parle "comme pour vous" de "l'invocation par l'utilisateur d'une propriété ou d'une méthode",
mais, de mon côté, on parle en plus de "a result of dropping a new instance of this XControl".
Pour Événement Changement de direction (dans le documentation de LabVIEW) :
"Généré sur le VI Façade lorsque la direction de la commandeX passe de commande à indicateur ou vice versa."
Changement de direction == Direction Change
et pour "Direction Change", j'ai : "The direction of the XControl changed from a control to an indicator or vice versa."
Ce qui est, dans ce cas, la même chose que pour vous.
Donc, petit bilan ...
Concernant le fait de "placer une instance du XControl" sur le FP,
pour moi : cela est géré par l'event "Display Stage Change" .... (dropping a new instance ...)
pour vous: on n'en parle pas ... ni pour un événement, ni pour l'autre.
pour wiki : wiki parle que le "drop" est géré par l'event "Direction Change" ... (soit l'inverse de chez moi)
               Ceci dit (en passant) ... wiki dit que le "load into memory" est géré aussi bien par l'un et par l'autre (??)
               Oui, cela n'a rien avoir ... juste une incohérence qui me fait douter du reste.
               wiki est aussi le seul a parler du drop initial (le 1er ?)
Et si on plaçait un "Breakpoint" dans chaque Event pour "voir" qui intercepte le drop ?
un seul ? les deux ? ... et si "les deux", dans quel ordre ?
Voici le résultat pour un "drop", les 2 events sont sollicités : (multiple tests, résultats identiques)
1er arrêt : Direction Change
2eme arrêt : Display State Change
Il serait donc possible de "réagir" à un drop aussi bien dans un event que dans l'autre.
Mais j'ai remarqué une grosse différence ... voici le code que j'utilise pour placer mon XControl en Indicateur lors du drop.
(oui, la structure condition est inutile ... petit purisme de ma part)
Si je place ce code dans "Display State Change"
1) mon XControl se positionne bien en Indicateur lors du drop
2) une fois placé comme indicateur, je peux toujours (par la suite) le faire basculer en Controle, et vis versa.
Si je place ce code dans "Direction Change"
1) mon XControl se positionne bien en Indicateur lors du drop
2) il est verouillé ! plus moyen de le changer en Controle (normal, tous changements fait l'objet d'un "reset" en position indicateur)
L'un et l'autre fonctionne, mais le résultat final est différent.
et pour terminer, un dernier mot sur ce "Flag" (inexistant chez moi lors de la création d'un nouveau XControl)
Le sous VI "Led-Ctrl2Ind" met le flag à 1 une fois que le XControl a été déposé sur la face-avant ...
Je ne vois franchement pas à quoi sert cette mise à "1" de ce Flag ... que je n'ai pas chez moi. (LV 2011)
Ceci dit, le canard est toujours vivant, car on ne sait toujours pas entre "Direction Change" et "Display State Change"
lequel des deux est spécialement dédié à la gestion d'un drop.

Basic questions on data modeling

Hi experts,
I have some basic questions regarding data modeling within MDM. I understand the available table types and the concept of lookup fields. I know that the MDM data modeling concept is different to the relational concept. But having a strong database background my first step was to design a relational data model which I would like to transfer to a MDM repository. Unfortunately I didn't found good information material on this. So here are some questions maybe you can help me:
1) Is it the right approach to model n:m relationships with multivalued lookup fields? E.g. main table Users with lookup field from subtable SapAccounts (a user can have accounts in different SAP systems, that means more than one account).
2) Has a record always be unique in MDM repositories (e.g. should we use Auto ID's in every table or do we have to mark a combination of fields as unique)? Is a composite key of 2 or more fields represented with marking these fields as unique?
3) The concept of relationships in MDM is only based on relationships between single records (not valid for all records in a table)? Is it necessary to define all relationships similar to the relational data model in MDM? Is there something similar to referential integrity in MDM?
4) Is it possible to change the main table to a sub table later on if we realize that it has also to be used as a lookup table for another table (when extending the data model) or do we have to create a new repository from scratch?
Thank you for your answers.
Regards, bd

Yes you are correct. It is almost difficult to map relational database to mdm one. But again MDM is not 'just' a database. It holds much more 'master' information as compared to any relational db.
1) Is it the right approach to model n:m relationships with multivalued lookup fields? E.g. main table Users with lookup field from subtable SapAccounts (a user can have accounts in different SAP systems, that means more than one account).
Yes Here you need to use MV look up tables or can also try Qualifier tables if it gets more complex
2) Has a record always be unique in MDM repositories (e.g. should we use Auto ID's in every table or do we have to mark a combination of fields as unique)? Is a composite key of 2 or more fields represented with marking these fields as unique?
Concept of uniqueness differs here that you also have something called Display Fields (DF). A combination of DF can also be treated as Unique one. For instance while importing records if you select these DF as a combination, you will eliminate any possible of duplicates based on this combination. Auto Id is one of the ways to have a unique id once record is within MDM. While you use UF or DF to eliminate any possible duplicates at import level
3) The concept of relationships in MDM is only based on relationships between single records (not valid for all records in a table)? Is it necessary to define all relationships similar to the relational data model in MDM? Is there something similar to referential integrity in MDM?
Hmm... good one. Referencial Integrity. What I assume you are talking is that if you have relationships between tables then removing a record will not be possible as it is a foreign key for some record. Here MDM does not allow that. As Relationships within MDM are physical and not conceptual. For instance material can have components. Now if material does not exist then any relationship to components is not worthwile to maintain. Hence relationshsip is eliminated. While in relational model relationships are more conceptual. Hence with MDM usage of lookups and main table you do not need to maintain these kind of relationships on your own.
4) Is it possible to change the main table to a sub table later on if we realize that it has also to be used as a lookup table for another table (when extending the data model) or do we have to create a new repository from scratch?
No. It is not possible to convert main table. There is only one main table and it cannot be changed.
I went for the same option but it did not work. What I suggest is to look up your legacy system one by one and see what fields in general can be classified as Master, Reference, Transactional - You will start getting answers immediately.

Hello I want to change your secret question and date of birth

Hello
I want to change your secret question and date of birth

The Three Best Alternatives for Security Questions and Rescue Mail
    1. Use Apple's Express Lane.
          Go to https://expresslane.apple.com ; click 'See all products and services' at the
          bottom of the page. In the next page click 'More Products and Services, then
          'Apple ID'. In the next page select 'Other Apple ID Topics' then 'Forgotten Apple
          ID security questions' and click 'Continue'. Please be patient waiting for the return
          phone call. It will come in time depending on how heavily the servers are being hit.
     2. Call Apple Support in your country: Customer Service: Contact Apple support.
     3. Rescue email address and how to reset Apple ID security questions.
A substitute for using the security questions is to use 2-step verification:
Two-step verification FAQ Get answers to frequently asked questions about two-step verification for Apple ID.

A very basic question regarding data block

Hi All,
I've a very basic question concerning data blocks in oracle forms 10g.
I want to make a view only screen (only query allowed, no update, insert or delete).
I'll have 6-7 fields on the screen but all the fields are not from a single table.
For e.g, let say we've field names to display on the screen are f1, f2, f3, f4..
Out of this f1 and f2 will come from table A and f3, f4 will come from table B.
Now, my question : Is it possible to create a data block using the data block wizard for such situation if we select create data block from table options?
If no, can you please tell me an approach to do this.
Regards,
Navnit

Hello ,
First write your query & select datablock property.
just change the below properties
Query Data Source Type=From Clause Query
Query Data Source Name = (Paste query here)
now you should add the block ITEMs and give their names according to query columns names. shows the column on canvas and run..
Best Regard
skyniazi
Edited by: SKYNIAZI on Mar 29, 2009 1:32 PM

Hello, I got a new computer with the old harddisk. Can't play my itunes music because not authorised. Apple ID is very old e-mail adress that doesn't exist anymore. When chose for secret question brth date seems wrong. Can't reach anyone!!!

Hello, I got a new computer with the old harddisk. Can't play my itunes music because not authorised. Apple ID is very old e-mail adress that doesn't exist anymore and I forgot the password (5 years old??). When chose for secret question birth date seems wrong. Tried everything. I need to make a new apple-id but cannot connect the music that I bought under my old name to my new name. Can't reach anyone!!! Automatic FAQ system is of no help. What to do?

That doesn't help me. For itunes it brings me to the express lane which doesn't help because my case is not in it. It's all standard procedure things. I understand those but my situation is different. The combination of a passport forgotten and an non-existing email adress (and birth dates that are not correct or not accepted). What I need is my password emailed to another email adress than the original one because that no longer exists.

Question sur photoshop

comment telecharger et incorporer des filtres photos sur photoshop ?

Je vais m'exprimer en français
Sur Photoshop j'aimerais utiliser des filtres photos comme sur un appareil
photo professionnel sur mes calques.
Comment obtenir ces filtres et comment les incorporer sur mes calques ?
Le jeudi 19 février 2015, Trevor.Dennis <[email protected]> a écrit :
question sur photoshop created by Trevor.Dennis
<https://forums.adobe.com/people/Trevor.Dennis> in *Photoshop General
Discussion* - View the full discussion
<https://forums.adobe.com/message/7209358#7209358>

Question sur première CS6 PC

bonjour,
première CS6 s' arrêt pendant son chargement les autres du pack fonctionne je suis sur pc

Bitdéfender , qui est pour ma part un très bon anti virus et qui à une case à cocher pour certain logiciel spécifique comme pour mon K.
Le 3 avr. 2014 à 09:54, Pierre-Etienne Courtejoie a écrit :
Re: question sur première CS6 PC
created by Pierre-Etienne Courtejoie in Forums en français - View the full discussion
Bonjour. lequel est-ce?
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I have a question about Data Rates.

Hello All.
This is a bit of a noob question I'm sure. I don't think I really understand Data Rates and how it applies to Motion... therefore I'm not even sure what kind of questions to ask. I've been reading up online and thought I would ask some questions here. Thanks to all in advance.
I've never really worried about Data Rates until now. I am creating an Apple Motion piece with about 15 different video clips in it. And 1/2 of them have alpha channels.
What exactly is Data Rate? Is it the rate in which video clip data is read (in bits/second) from the Disc and placed into my screen? In Motion- is the Data Rate for video only? What if the clip has audio? If a HDD is simply a plastic disc with a dye read by "1" laser... how come my computer can pull "2" files off the disc at the same time? Is that what data transfer is all about? Is that were RAM comes into play?
I have crunched my clips as much as I can. They are short clips (10-15seconds each). I've compressed them with the Animation codec to preserve the Alpha channel and sized them proportionally smaller (320x240). This dropped their data rate significantly. I've also taken out any audio that was associated with them.
Is data rate what is slowing my system down?
The data rates are all under 2MBs. Some are as low as 230Kbs. They were MUCH higher. However, my animation still plays VERY slowly.
I'm running a 3GigRam Powerbook Pro 2.33GHz.
I store all my media on a 1TB GRaid Firewire 800 drive. However for portability I'm using a USB 2 smartdisk external drive. I think the speed is 5200rpm.
I'm guessing this all plays into the speed at which motion can function.
If I total my data rate transfer I get somewhere in the vicinity of 11MBs/second. Is that what motion needs for it to play smoothly a 11MBs/second data connection? USB 2.0 is like what 480Mbs/second. So there is no way it's going to play quickly. What if I played it from my hard drive? What is the data rate of my internal HDD?
I guess my overall question is.
#1. Is my thinking correct on all of these topics? Do my bits, bytes and megs make sense. Is my thought process correct?
#2. Barring getting a new machine or buying new hardware. What can I do to speed up this workflow? Working with 15 different video clips is bogging Motion down and becoming frustrating to work with. Even if only 3-4 of the clips are up at a time it bogs things down. Especially if I throw on a glow effect or something.
Any help is greatly appreciated.
-Fraky

Data rate DOES make a difference, but I'd say your real problem has more to do with the fact that you're working on a Powerbook. Motion's real time capabilities derive from the capability of the video card. Not the processor. Some cards do better than others, but laptops are not even recommended for running Motion.
To improve your workflow on a laptop will be limited, but there are a few things that you can try.
Make sure that thumbnails and previews are turned off.
Make sure that you are operating in Draft Mode.
Lower the display resolution to half, or quarter.
Don't expect to be getting real time playback. Treat it more like After Effects.
Compressing your clips into smaller Animations does help because it lowers the data rate, but you're still dealing with the animation codec which is a high data rate codec. Unfortunately, it sounds necessary in your case because you're dealing with alpha channels.
The data rate comes into play with your setup trying to play through your USB drive. USB drives are never recommended for editing or Motion work. Their throughput is not consistent enough for video work. a small FW drive would be better, though your real problem as I said is the Powerbook.
If you must work on the powerbook, then don't expect real-time playback. Instead, build your animation, step through it, and do RAM previews to view sections in real time.
I hope this helps.
Andy

General question about data recovery from raid on windows server !

hi,
I like to buy data recovery software for windows server to recover data with any raid( or whitout raid
so the company tells me you should be sure the Raid can be recognized correctly as local disk drive first, otherwise, our product wil not help you. so if I want to recover data of my customers which has windows server with any raid form ,how
I can make this server harddisks(which is raid 1,5,6 ect)recognized coorectly as local disk drive.
thanks
johan
h.david

I have myself NAS which is connected to my computer through router.
I am started smal bussines ,and I want to use also data recovery service for deleted documents,photo's,formatted drives ect.for my customers .things that accidantally errased from raid or non raid
so I found some data recovery softwares
1-stellarphoenix data recover,which has remote acces and netwerk acces.
2--ease use data recovery software. I liked this second software,but they telling me like this,
you should be sure the Raid can be recognized correctly as local disk drive first, otherwise, our product wil not help you.
I understand the both situations you telling me.thanks
but my question is can I not run data recovery software from bootable usb stick on the smal servers like essential with raid to recover data in case of any problems that caused data loose.
I know if I install data recovery software on the server to scan it ,it wil rewrite some places on harddisk and that is not wise.
h.david

Some questions on data warehousing

My questions are:
(1.) Is ANY dimension, except the time dimension, a candidate for a SCD (slowly changing dimension)? i.e. A sales rep dimension can have a column changing slowly like the state he belongs to, a employee dimension can have a columns
such as highest education level changing slowly over time. So, any dimension, except the time one, can have columns which are candidates for SCD?
(2.) When designing a DW, do you have to think about SCDs at design time? Or will the need for a SCD come later when the system is running live? When designing a DW is it best practice to look at all columns in the dimensions, and see if
the data can change slowly over time and make room for that, or do we do it as an when the requirement comes, after the system goes live?
(3.) Can a dimension have more than 1 column which changes slowly over time? Like, for a product dimension, the product price and the supplier both changes slowly over time. So, what is the solution to this scenario?
(4.) What is the the MOST COMMON solution practiced in real life to a SCD problem? Is it creating more than one row with a version number or begin/end dates?
(5.) Does a solution to a SCD require rebuilding the fact table?

1.Yes
2. We make them SCDs in design time itself. In case it doesnt need historic data analysis we make attributes as Type 1 to preserve only latest values
3. The same dimension can have attributes (columns) that can be handled differently ie some columns might be processed in Type 1 way (update with latest value), some in historic way (multiple records with each intermediate values) and some in fixed way
4. Common method is to use Valid From and Valid To date fields. The latest record will have ValidTo as NULL to indicate its the currently valid record. We will also add a bit field IsCurrent for quick retrieval and it will be 1 only for latest valued records
5. Yes. As the surrogate key changes when you implement Type 2 changes. Each intermediate value surrogate key would be different and fact has to have correct surrogate key reference to make sure you get correct attribute value as on the required period.
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Quick Question re Data Source

Hi
I have a quick question re datasource login.
I havent touched my Crystal Reports for about a year. Since I created the reports (which users have been using through Crystal Reports server) I have changed my PC.
I need to make a change in the formulas of the reports so I have reinstalled Crystal Reports 11 onto my PC and opened the reports. The forumula change is simple but I am having a nightmare with the data source login. The report runs against an SQL database. From memory all I did the last time was create an ODBC connection on my PC (which used the the SQL login sa account) and configured the reports to use that ODBC connection. When I open the report it asks me for the data source location which I tell it to use the one I created and the report runs fine.
If I close Crystal Reports and and then re-open, I press F5 to run the report and it gain asks me for the data source credentials.
Any ideas, I'm sure it is something simple I am missing?
Thanks

Guys
Thanks for your help
Ive managed to fix it but not really sure how although I'm sure a few of the things you have mentioned is what I have done.
I basically restored the reports from last nights backup (before I did the changes), re-did the changes and saved and now it seems to work. I think the difference here is that I had created the odbc connection prior to changing the reports - if that makes sense?
What I would like to do is fully understand how this data source connection works.
Don, when I open the report now and hit f5 the report presents me with the parameters and not the database login screen as it was doing before - how is this? What credentials is it using? The SQL sa account (which I configured the ODBC connection to use) or is it my domain account of which I assume permissions for this account must be set on the actual SQL database?
As you and Jeff suggested when I look at the datasource connection screen it shows "trusted Connection: 1" - what does this mean and how is this configured, have I configured this in Crystal somewhere?
Thanks
Andy

Wireing Question for Data Center

I work in what I would consider to be a small/mid sized data center. We use two 6513 as the core/distribution for ~25 racks of servers.
My question comes in the way of cabling the servers to the core. Currently they are using long patch cords between the 6513 and each server. Well its a mess, functional but messy.
I'm trying to figure out the best way to clean up the mess and make it look professional.
Most people seem to suggest 2 different ways to accomplish this:
1) Install switches in each rack and run fiber from the core to the rack. Wire each server to the switch in the rack.
2) Install 24/48 port patch panels between the core area and the racks.
I'm wondering what people think of these ideas and if there are any other suggested ways of accomplishing this?
Andy

Hi Andy,
Here's something that we used to do where I worked:
We had 6509's with three/four 48 port blades servicing between 150 and 200 phones roughly. I had four total switches, one on each of four floors. So this would be roughly similar to your DC environment, only we're servicing longer horizontal runs and phones, not servers -- but the idea is the same (i.e. high density cabling issues).
Lord knows that when you're plugging in 48 cables into one of those blades, it can get pretty crowded. And since we don't yet know how to alter the laws of physics that determine space requirements, we have to search for alternatives.
Back to my environment: On three of the four floors, we just wired straight from the patch panel (that ran to floor locations) to the switch. Quite a mess when you're running in 48 cables to one blade! However, this is traditional and this is what we did. My cabling guy (very smart fella) suggested something else. At the time I was too chicken to do it on the other floors, but I did agree to try it on one floor. Here's what we did:
He ran Cat5 (at the time, that was standard) connections in 48 cable bunches from an adjacent wall into the switch. They had RJ-45 connections so that they could plug in, and they were all nice and neat. On the other end, they plugged in to a series of punch down blocks (kind of like you see in a phone room for telephone structured cabling). These, in turn, were cross connected to floor locations on another punch down block that went to the floor locations. Now, whenever we wanted to make a connection live, we simply had to connect the correct CAT5 jumper wire from one punch down block to the other. You never touch the actual ports in the switch. They just stay where they are. All alterations are done on the punch down blocks. This keeps things nice and neat and there's no fiddling with cables in the switch area. Any time you need to put in a new blade, you just harness up 48 more cables (we called them pigtails) and put them in the new blade.
NOTE: You could do the exact same thing with patch panels instead of punch down blocks, but with higher densities, it's a bit easier to use the blocks and takes up much less space.
ADVANTAGES:
* Very neat cable design at the switch side.
* Never have to squeeze patch cables in and out.
* Easy to trace cables (but just better to document them and you'll never have to trace them).
* Makes moves, adds, and changes (particularly adds) very easy.
DISADVANTAGES:
* Not sure that you can do it with CAT6.
* You have to get a punch down tool and actually punch cables (not too bad though after you do a few).
* You need to make sure that you don't deprecate the rating on the cable by improperly terminating it (i.e. insufficient twists)
Anyway, I haven't had a need to do this in a while and I no longer work at the same place, but my biggest concern would be if that meets with the CAT6 spec. Not sure about that, but your cabling person could probably tell you.
I'm not a big fan of decentralizing the switches to remote locations. It can become cumbersome and difficult to manage if you end up with a lot of them. Also, it doesn't scale well and can end up with port waste (i.e. you have 24 servers in one cabinet on one switch and then along comes 25; you now have to buy another 12 or 24 port switch to service the need with either 11/23 ports going to waste -- not good).
Good luck. Let us know how you make out. I'd be glad to go in to more detail if the above isn't explained well enough.
Regards,
Dave

Simple question involving data signing and encryption

What is exactly mean by signing and encrypting data?
And how would it apply to the case of a web browser..where I have to sign and encrypt data to and from a web browser? In this case it is an output and input stream.
Does every byte have to be signed or just the starting bytes? Singing every byte would make the process slow and inefficient

I know if you you sign and encrypt the data to the
web browser, it will obviously not be recognized but
this is my scenario:Your ASCII art didn't come across at all, I'm afraid - I'm not sure what you were going for, but I can't seem to recreate it. I think I can follow the explanation, though.
P is the program i am developing. It is supposed to
encrypt and sign data to and from the web browser.
P1 get the web browser request, encrypts the data
a and is supposed to sign the data...send it
to P2 which decrypts and verifies the signing which
then forwards it to the proxy or the server as seen.
Vice versa from the server response.So you're working on a web-proxy that encrypts it's transmissions, and you want to add signature verification as well.
My question still remains...how do you sign a stream?I answered your question, actually. You don't sign "streams" - you sign "messages". In your case, you sign the entire transmission, and then you transmit it.
Right now I am using RSA keys to send a symmetric key
across safely for the decryption etc I have the
encryption/decryption process covered and the browser
works..but i didn't do signing of any sort...how to
implement this..for every byte? Is signing necessary?Given your requirements, I have to ask - why are you re-creating SSL? If you have P1 and P2 talk SSL to each other, you get everything you've described here, including signing. I don't understand why you feel the need to recreate an existing protocol.
Grant

End of contract questions (Unlimited data+4G)

I currently have 2 lines in my account. The main line is mine and the contract is up on 11/.07, while the secondary line is 12/04. I have been waiting for the new gen 4G and Galaxy Nexus to be announced before making a decision on what to upgrade my phone to.
Here are the questions I have:
I have the unlimited data plan now. If I extend my contract with a 3G or a 4G phone that is currently on sale today then switch to Galaxy Nexus later in November, will I keep the unlimited data plan still?
If I do not renew the contract, do I loose the loyalty discount + the unlimited data plan?
Does switching from a 3G device to 4G device effect the data plan status at all (unlimted to 5g capped?)
Thanks for the replies.

stiglet wrote:
I currently have 2 lines in my account. The main line is mine and the contract is up on 11/.07, while the secondary line is 12/04. I have been waiting for the new gen 4G and Galaxy Nexus to be announced before making a decision on what to upgrade my phone to.
Here are the questions I have:
I have the unlimited data plan now. If I extend my contract with a 3G or a 4G phone that is currently on sale today then switch to Galaxy Nexus later in November, will I keep the unlimited data plan still? As of right now, Verizon's policy is to allow you to keep the unlimited data feature as long as you keep a 3G or 4G smartphone active on your line. It is possible that might change by November, but highly unlikely. In any case, you would know if you could not keep the plan because Verizon would announce that they are ending the grandfathering and/or releasing phones that aren't compatible with the feature. In general, I would expect to be able to keep your unlimited data pretty easily until Verizon finishes implementing the majority of its 4G network in 2013, but that's just my guess.
If I do not renew the contract, do I loose the loyalty discount + the unlimited data plan? You won't lose your unlimited data. Your plan will stay the same until you do something to change it, but you'll be on month-to-month status. The loyalty discount expires 6 months after it becomes available (so two months after your contract ends).
Does switching from a 3G device to 4G device effect the data plan status at all (unlimted to 5g capped?) As far as I'm aware, unlimited is still unlimited. The only change is that Verizon reserves the right to throttle the top 5% of users in congested markets during peak hours. It doesn't neccesarily kick in at 5GB, and it won't affect you at all if you don't use a congested tower.
Thanks for the replies.

XControl (question sur "data in")

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