System Design Question using BPEL

Our group is currently in the early design phases of a new order extraction and billing process. What we would like to do is to an extraction of order data occur at a time specified on an Extraction Profile (which is defined by the users in a template - the profiles are built at midnight for the next day) Is there any way to have BPEL use these times (defined in the table) as the start point of when to begin the processing? The extractions are mutliple times each day and could be different day to day. We would like to have BPEL orchestrate the processes involved.

I guess polling is a option you can try.
You can write a polling process in BPEL to act as triggering point form the table.
Perform logical compare for the times and terminate the poller if the time does not match.
If the time match then start the business process and this could act as the triggering point to run the business process.
You might like to perform a logical delete using a status flag in the table.
If you do not like to touch the original table, you could create a dummy table to hold the bits that could be joined with the original table for the polling.
Polling interval could be set based on how much diff you could allow from the scheduled time for triggering the process.
Every Little Helps
Kalidass Mookkaiah
http://oraclebpelindepth.blogspot.com/

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Java System design Question

Hi,
I am new programmer and have been assigned the task of replacing an old system with a new one . The old system was done using Access 97 VBA. Both the backend(database) and the frontend ( in Access VBA). It is basically a database system which, retrives information, does computation and all that.
Now we plan to change it with a server running linux , mysql database on the same server. I was thinking of doing the whole thing in Java . There will be like 45 people working on the system at the same time , some on the web .. which i plan to use JSP. I want most of the things to look the same so that people using it will not have too much trouble becasue they are used to the old system.
I just need to know if this a good idea ..
I would be very glad if someone could help me with this .. I don't want to make a blunder here ..
Thanks,
sdsouza

"kinda cross posted"??? It was, and then you cross the cross post with cross posted complaints about cross posting. Cross posting really bothers you don't it? Well, see, I don't think you'll ever stop it, unless you rewrite the forums to be more intelligent about postings. So I wouldn't worry about it... give an answer or don't. (I gave one in the other post...)

Newbie question: Question using BPEL as websevice

Hi
I have a few questions related to the usage of BPEL process and Web Services. The requirement is to build a BPEL Process, which can be configured to switch the web service call based on the customer requirement. Customer could either call our web service or third party web service to get the data. This BPEL process is called by a different application to display the data on their UI. So my questions are
1) Can we wrap this BPEL process as a webservice, so that the calling
application call this process as a web service.
2) Would it be possible for the customer to configure the process to switch the
call in the BPEL process. (default will be our webservice). Is there any examples available to do a prototype?
3) Based on the requirement, is it the right approach?
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I got the answer for quesion 1 from Tutorial 7: Invoking BPEL Processes through SOAP or Java

Website design question using DW MX

Hello,
Relative rookie here looking for some info. Will dreamweaver
Mx allow me to build a site such as www.ada.net ?
Also and more importantly are there any good site for
templates? I am basically try to build the site listed above of
course using different names, colors and products.
Thank you,
Tyler

The real question is "will your skill with HTML and CSS allow
you to use DMX
to build a site like that"? An inexperienced user using DMX
can only build
sites that would look like they were built by an
inexperienced user, doncha
know? But - can DMX allow you to build a site like that?
Certainly.
Good sites for templates? Try Google.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Europeancardriver" <[email protected]>
wrote in message
news:gh1tdi$lea$[email protected]..
> Hello,
>
> Relative rookie here looking for some info. Will
dreamweaver Mx allow me
> to
> build a site such as www.ada.net ?
>
> Also and more importantly are there any good site for
templates? I am
> basically try to build the site listed above of course
using different
> names,
> colors and products.
>
> Thank you,
>
> Tyler
>

Design question -using struts

have String array's which have values in them.
dbValues[]
newValues[]
Have an object Customer which is the row obj in a table in jsp page. This row obj basically has
dbValues[0] , newValues[0] ...... etc.
In Prepare Action.
Creating the list of Customer obj's that is put in the form-bean.
struts-config.
<form-bean name="Form" type="org.apache.struts.validator.DynaValidatorForm" dynamic="true">
<form-property name="custs" type="java.util.ArrayList"/>
</form-bean>
jsp:
the customers are shown in the jsp in a table.
I have to check if it's new customer then have to ask user if they want to put dbValues in the newValues. If the user presses 'yes' then have to put the dbValues in newValues and then create the rowObjects(i.e Customer Objects) and display them in jsp.
Not sure how to do this. Before asking the user if they want to replace newValues, the rowsObjects are created. somehow have to create new rowObjects again. Using LookupDispatchAction. when the user presses 'yes' how is the user values 'yes' will be passed as i am using LookupDispatchAction which method gets executed?
How to do this? Thanks.

I am giving how to work with LookDispatchAction.
It gives the solution for ur problem.
->firtst it get the value from the button.
-> That value is used to identify the key from the resource bundle.
->That key is used to get the method name from getKeyMethodMap()of
lookdispatchaction.
that's why we say that it looks in reverse manner.
What I said above is theretical.
From this u can understood how to do it.
Cheers
Sudha.

A general design question using servlets

Hello all,
          We have 2 WebLogic app./web servers. Lets call the first one Server A and
          the other Server B. Server A shows a web page to the client/browser and that
          has links to Server B. Now there is some authentication information that
          needs to be passed to Server B too. We were thinking of embedding that
          information in the web page itself. So a link on a page served by Server A
          could look like:
          Login to Server B
          Now the issue with such a solution is that the login token is exposed to the
          browser and the client. This would lead to the token being copied and pasted
          for replay attacks on Server B. I was thinking of better ways to solve this
          issue. PLease let me know if you have faced such issues earlier and a better
          solution using Servlets/JSP etc..
          Thanks.


          Either use a cookie by setting its domain name your two servers share, or add very
          short timeout. In later case, you generate the token with very short timeout in
          one server, use redirect to send the request to the second server, then use the
          session objects in both servers to indicate the user login. When you logout, you
          need kill the session objects on both servers.
          "Gaurav Khanna" <[email protected]> wrote:
          >Hello all,
          >
          >We have 2 WebLogic app./web servers. Lets call the first one Server A
          >and
          >the other Server B. Server A shows a web page to the client/browser and
          >that
          >has links to Server B. Now there is some authentication information that
          >needs to be passed to Server B too. We were thinking of embedding that
          >information in the web page itself. So a link on a page served by Server
          >A
          >could look like:
          >Login to Server
          >B
          >
          >Now the issue with such a solution is that the login token is exposed
          >to the
          >browser and the client. This would lead to the token being copied and
          >pasted
          >for replay attacks on Server B. I was thinking of better ways to solve
          >this
          >issue. PLease let me know if you have faced such issues earlier and a
          >better
          >solution using Servlets/JSP etc..
          >
          >
          >Thanks.
          >
          >

Driver Architecture design question

Hi,
I want to move from a system design which uses an intermediate user space process to co-ordinate requests going to a device to one where the applications communicate directly with the driver.
This will mean handling queues of requests in the driver and ideally multiple user threads calling into the driver submitting requests and (probably) waiting for the responses.
My question is...what is the best architecture to use for such a system. It does not properly map to the traditional read/write style of driver I/O and I was thinking I could use the ioctl interface to submit a structure that contained the request and space for the response. In the ioctl call the request could be added to a queue going to the device and the call could block waiting for receipt of the response.
I'm not sure that this is the best way to go about this (Is ioctl really meant for this kind of operation and will it scale?) and I'd be very grateful for any suggestions.
Thanks in advance,
Diarmuid

Yes, ioctls are commonly used for this sort of thing.

Siebel On Demand Outbound Webservice integration using bpel question

Hello everyone,
I have a question I am hoping the forum can help me out with
I am trying to do an integration using bpel with Siebel on demand as the begining point. The bussiness case is that I want qualified leads to be extracted out of the Siebel On Demand crm to be integrated into a back end system. This is put into a queue in the integration events. I have read the forum on all the session id and intermediate java code that provides the session id. I noticed that Siebel on demand is not a webservice requestor and only a webservice provider even for outbound messages. Since bpel always needs an input of some sort how would I kick off bpel to keep checking the queue not to mention getting the session id ect?
Any help would be great :)
Jaden

Hi ,
An integration even is something that is configured using a workflow. Like say when a Lead field is modified of r a particular Lead this even fires and will go and reside in Integration Even Queue.
A separate bpel process is then required to read the Integration Queue (wsdl's available) and then process this even for the lead.
Regarding extraction of Leads from SOD it need to have any Inegration events. Even without this we can do it. Just make a webcall using the Lead wsdl and then process th erecords usinga while Loop stucture. You can use a DB adapter to write to the target Database tables.
Nyjil

Design questions on using JMX

I have been reading about JMX and trying to understand it
I have some specific design realted questions and wanted some opinions to validate my understanding
Assume a simple j2ee application that exposes 2 webservices .
I would like to find out how many times each service is called and the total number of success/faults/errors
encountered for each service along with params like starttime etc
From what I have understood , I will have to first create a Bean , say "StatsCollector"
and then creae a StatsCollectorMBean interface.
The StatsCollector will provide the methods to set/update the above values and those will also be exposed by the StatsCollectorMBean interface
1) I have trouble understanding how to create and maintain the MBean Resource...
Shouldnt there be always 1 instance of this resource ? ie shouldnt there be only one StatsCollector ?
Most of the examples create a simple class "Hello implements HelloMBean" and that makes it a MBean
but they create Hello hello = new Hello() and then register it with the MBean server
What if we create multiple objects of Hello? Wouldnt that defeat the porpose of the MBean ?
I think that we need to make sure that this resource is always created once only.
Is that correct ?
2) Is it the right practice to separate your MBean and your "managed" resource ?
ie in the above case , should there be a Singleton StatsCollector POJO that stores the Appliction
statistics and another StatsMBean that will be the MBean that will access the POJO ? This makes sure that your Resource does not have
dependency management classes.
3) How does the application update the values in the MBean ?
In the above example , how do you update the success and failure counts in the MBean from the application ?
Can I update the singleton StatsCollector directly or do I have to go through the MBean Server to update
any value in the MBean ?
If I update them directly , will they be "visible" thru the MBean server ?
4) Assuming that the above app gets deployed in a appserver like WebSphere and in a Clustered environment ,
how to ensure that statisitcs are collected for all the services on all servers cummulativly ?
Is this something that the appserver should provide ? Do we register the MBean with the Appserver
MBean server ?
Any ideas/suggestions will be helpful !
thanks
Pat

Hello pat,
very interesting questions. You are covering the main JMX design questions there.
You should have a look (if you not already did) to the JMX best practices : http://java.sun.com/javase/technologies/core/mntr-mgmt/javamanagement/best-practices.jsp
This document summarize common JMX design patterns.
Answers to your questions:
1) The resources you want to manage/monitor are Web Services. The life cycle of these services is handled by the J2EE container itself. As you say, the tricky part is to link the WebService resource life cycle to the MBean resource
The MBean leaves inside its own container, the MBeanServer.
You should identify an initialization phase in which you create your MBeans and register them inside the MBeanServer once.
In your case, you can go for a single collector that monitors the 2 Web Services or a collector per Web Service. It seems that you want to track each service independently. Having 2 MBeans should offer a more flexible solution.
If you go for 1 MBean, you should name it "<your management domain>:type=StatsCollector". This name identify an MBean for which you have a single instance. Once the collector registered with this name, the MBeanServer will guarantee that no MBean with the same name can be registered.
If you go for 2 MBeans, you should add the Web Service name to each MBean ObjectName. For example:
MBean 1 : "<your management domain>:type=StatsCollector,name=MyWebService1"
MBean 2 : "<your management domain>:type=StatsCollector,name=MyWebService2"
Example of MBean creation and registration code :
StatsCollector collector1 = new StatsCollector();
ManagementFactory.getPlatformMBeanServer().registerMBean(collector1,
new ObjectName("com.foo.bar:type=StatsCollector,name=WebService1");
At this point you have an MBean registered inside the platform MBeanServer.
2) A Standard MBean is formed of a java interface and a class. Generally the interface and the class are not separated. They could be but I don't see a strong reason in your case to have the POJO and interface not being the same object.
3) You shouldn't expose the methods to set the values in your MBean interface. Only getters should be visible. It means that you will have to keep a direct reference to the collectors to update the statistics. During your initialization phase, you could use JNDI to register the collector instances. The WebServices will then use JNDI to retrieve the collectors.
An example of a simplified StatsCollector class and StatsCollectorMBean interface
public interface StatsCollectorMBean {
public int getNumRequests();
public class StatsCollector implements StatsCollectorMBean {
private int numRequests.
public int getNumRequests() {
return average;
public serviceCalled() {
numRequests++;
In the above example, serviceCalled is not part of the management interface and is called by the Web Service.
4) Difficult question for which I can't provide you with a reply. JMX doesn't offer such cumulative service in a standard way. In some appserver (glassfish for instance), MBeans are cascaded inside the domain server. There is no cumulative representation offered, but you could implement your own by defining new MBeans linked to the StatsCollector ones.
To conclude, Appservers are offering some "out of the box" management and monitoring features . For example glassfish relies on the AMX framework (that is JMX based) . AMX (https://glassfish.dev.java.net/javaee5/amx/) allows you to monitor and manage your services. A possible solution would be to rely on this infrastructure to build your own management and monitoring.
Hope this help.
Regards.
Jean-Francois Denise

Design question about when to use inner classes for models

This is a general design question about when to use inner classes or separate classes when dealing with table models and such. Typically I'd want to have everything related to a table within one classes, but looking at some tutorials that teach how to add a button to a table I'm finding that you have to implement quite a sophisticated tablemodel which, if nothing else, is somewhat unweildy to put as an inner class.
The tutorial I'm following in particular is this one:
http://www.devx.com/getHelpOn/10MinuteSolution/20425
I was just wondering if somebody can give me their personal opinion as to when they would place that abstracttablemodel into a separate class and when they would just have it as an inner class. I guess re-usability is one consideration, but just wanted to get some good design suggestions.

It's funny that you mention that because I was comparing how the example I linked to above creates a usable button in the table and how you implemented it in another thread where you used a ButtonColumn object. I was trying to compare both implementations, but being a newbie at this, they seemed entirely different from each other. The way I understand it with the example above is that it creates a TableRenderer which should be able to render any component object, then it sets the defaultRenderer to the default and JButton.Class' renderer to that custom renderer. I don't totally understand your design in the thread
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=680674
quite yet, but it's implemented in quite a bit different way. Like I was saying the buttonClass that you created seem to be creating an object of which function I don't quite see. It looks more like a method, but I'm still trying to see how you did it, since it obviously worked.
Man adding a button to a table is much more difficult than I imagined.
Message was edited by:
deadseasquirrels

How to join the results from 2 webservices using BPEL?Architecture question

Hi,
I am new to BPEL. BPEL process calls two webservices, which return complex results. I need to process the results from 2 webservices using BPEL .The result will be a complex xml, join/merge of previous results.
What is the best practice to do it with BPEL?
I see three ways:
1.To do the processing (join/ merge) inside the BPEL process itself and return complex xml.
2.Develop auxiliary webservice in java. Auxiliary webservice will do the processing (join/merge). Call this webservice from BPEL process.
3.Do a plain concatenation of the two XMLs in BPEL and forward it to the frontend. Frontend then will do all the logic on its side
Thanks,
Boris

you could process the XMLs one at a time, and use XSL transformations to process the payload to a target schema.
Activity 1:
output from webservice1 -> transform 1 -> partial XML (of target schema)
Activity 2:
output from webservice2 -> transform 2 -> completed XML (of target schema)
Regards,
Shanmu.

LDAP design question for multiple sites

LDAP design question for multiple sites
I'm planning to implement the Sun Java System Directory Server 5.2 2005Q1 for replacing the NIS.
Currently we have 3 sites with different NIS domains.
Since the NFS over the WAN connection is very unreliable, I would like to implement as follows:
1. 3 LDAP servers + replica for each sites.
2. Single username and password for every end user cross those 3 sites.
3. Different auto_master, auto_home and auto_local maps for three sites. So when user login to different site, the password is the same but the home directory is different (local).
So the questions are
1. Should I need to have 3 domains for LDAP?
2. If yes for question 1, then how can I keep the username password sync for three domains? If no for question 1, then what is the DIT (Directory Infrastructure Tree) or directory structure I should use?
3. How to make auto map work on LDAP as well as mount local home directory?
I really appreciate that some LDAP experta can light me up on this project.

Thanks for your information.
My current environment has 3 sites with 3 different NIS domainname: SiteA: A.com, SiteB:B.A.com, SiteC:C.A.com (A.com is our company domainname).
So everytime I add a new user account and I need to create on three NIS domains separately. Also, the password is out of sync if user change the password on one site.
I would like to migrate NIS to LDAP.
I want to have single username and password for each user on 3 sites. However, the home directory is on local NFS filer.
Say for userA, his home directory is /user/userA in passwd file/map. On location X, his home directory will mount FilerX:/vol/user/userA,
On location Y, userA's home directory will mount FilerY:/vol/user/userA.
So the mount drive is determined by auto_user map in NIS.
In other words, there will be 3 different auto_user maps in 3 different LDAP servers.
So userA login hostX in location X will mount home directory on local FilerX, and login hostY in location Y will mount home directory on local FilerY.
But the username and password will be the same on three sites.
That'd my goal.
Some LDAP expert suggest me the MMR (Multiple-Master-Replication). But I still no quite sure how to do MMR.
It would be appreciated if some LDAP guru can give me some guideline at start point.
Best wishes

Systems Design Engineer for Orange County, CA

Please mail your resume in Adobe PDF format to [email protected]
If you have an extraordinary passion for engineering and are not afraid to take on an extremely challenging position,
we have exactly what you have been looking for!
Employer information:
moviMED is a small systems engineering consulting firm located in Southern California. The central focus of our operations is to provide exceptional engineering services to the Life Science Industry in the Academic and Commercial arena. We develop cutting edge technology for major biomedical companies. We offer a broad range of services to our clients to assist them in conceptual prototype design, medical device testing, motion and vision applications.
Job Description:
Employee will plan, document, design, specify and build comlpex systems using best engineering practices. He/She will be required to interact with other employees, vendors and other consultants to solve problems on his/her own. Application software will be mainly developed using LabVIEW and relevant tool packages, such as (but not limited to): NI MOTION, NI VISION, Data Base Connectivity, SPC etc.
The employee will be further required to develop custom electronic signal conditioning and other interfaces to sensors and actuators. The frequent integration of new technology and third party products will require the employee to keep him(her)self up to date by studying relevant documentation and by engaging in a substantial amount of research.
This job is heavily oriented towards the Life Science Industry and demands more than just electronic engineering and computer science skills.
The Ideal Candidate:
Will have experience in the following categories:
- Application Development using LabVIEW V6.1 and V7.x
- Analog and Digital Circuit Design
- Micro-Processor, Micro-Controller Programming in embedded C and/or assembly for 8-bit and 16-bit cores
- Motion Control (Pneumatics, Servo, Stepper etc.)
- Computer Science Skills (MS Windows, MS OFFICE, Data Base/SQL, Networks etc.)
- Project Management
- Sensors of all kinds, Actuators of all kinds
Required Skills:
- Exceptional Sense for Details
- Highly Organized
- Self Sufficient
- Ability to quickly learn on its own
- A great deal of Common Sense
- Capabilty to work of poorly documented requirement specifications
- People Skills
- Teaching Other People (Holding Seminars and Presentations)
- Great Improvisation Skills
- Fluent in English Language (in writing and verbal)
- Analytical Problem Solving
- Methodical Trouble Shooting
- Working with Time Constraints
We look forward to receiving your resume
Regards,
Markus Tarin
President & CEO
www.movimed.com - Custom Imaging Solutions
www.movitherm.com - Advanced Thermography Solutions

I have just read your job posting for LabView Programmer and would like to introduce myself.
I have over six (6) years experience with LabView, from versions 3 to 7.1.1, in systems design and programming of LabView based SCADA/DCS and signal analysis applications.
Your job description is very interesting to me as I have had some exposure to intelligent vision systems use in manufacturing quality control and have been a practicing audio/video engineer since 1987.
I have also looked closely at the Lake Forest, CA location and would consider relocation as I have been recently considering a warmer climate. I have been working as an independent consultant and would be willing to assist you on a part-time or full-time, term, basis if you would find that helpful. I would like to discuss the position further and will send my resume early next week. Please feel free to contact me in the mean time with any questions.
Thanks,
Tom Held
[email protected]
414-964-0518

OSB and SOA Server (Mediator) Design question

As OSB is the strategic ESB and is used for external services does it make sense that all communication must go out via the OSB.
For example if I have a request that comes in gets routed through the OSB and then calls a backend composite which contains a BPEL that sits on the Oracle SOA server that calls multiple external services (CRM, SAP etc..) Would all the calls out from the BPEL then go back to the OSB and out to the external services (via proxy/business services.) This seems to add a lot of network hops to the whole architecture.
I can't really seem to find a diagram to explain this but an external service consumer could call the Oracle SOA stack that will come in via the OSB (for security gateway as OWSM 11g doesn't support gateway yet.) Then get transformed into the CDM and then passed on to the Oracle SOA server that has a composite service with BPEL that orchestrates multiple calls to internal and external services. The external ones requiring a transformation back into the service providers format.
How does this flow work?

If you are talking to external B2B systems you should use the Oracle B2B Server, have a look at this link,
http://download.oracle.com/docs/cd/E14571_01/integration.1111/e10229/b2b_intro.htm#CEGGAGJA
Section 1.6 in there gives a good example of doing just that. The OSB mediator is responsible for talking between CDM's in this case so it does some internal work, within one CDM set of services and then when ready the mediator translates from CDM to the format needed for the B2B. The B2B Server then does all the clever stuff needed to talk to the B2B partner.
In the internal case where the call is within the Enterprise the Oracle documentation states that there may be cases when doing this translation from CDM to legacy format may take place within the SOA server but recommends that it is normally done using the mediator in the same way as with partner calls. The 11g developer documentation states "The stated direction by Oracle is for the Oracle Service Bus to be the preferred ESB for interactions outside the SOA Suite. Interactions within the SOA Suite may sometimes be better dealt with by the Oracle Mediator component in the SOA Suite, but we believe that for most cases, the Oracle Service Bus will provide a better solution and so that is what we have focused on within this book."
Just what those exceptions are is an interesting question. If you have a CDM and all of your legacy world has translators you will spend all of your time hoping up to the mediator and back down maybe that is the exception. If everything is using the mediator then the SOA orchestration power is lost. If on the other hand most of your system lives within a canonical schema and there is one exception perhaps you make it pay the price for non-conformance.

Centralized WLC Design Question

Dears,
In my scenario, i am designing CEntralized WLC deployment. I have 30 AP in Buidling X(200 Users) and 20 AP in Buidling Y(150 Users). I am planning to install HA WLC CLuster where Pimary & Secondary WLC will reside in physically different Data Centers A & B.
I have a wireless Design Question and i am not able to get clear answers. Please refer to the attached drawing and answer the following queries:
If Buidling X users want to talk to building Y Users, then how Control & Data Traffic flow will happen between Buidling X & Y. Would all the traffic will go to Primary WLC from Bldg X APs first and then it will be Re Routed back to Buidling Y APs? Can i achieve direct switching between Bldg X&Y APs without going toward WLC?
If Building X & Y Users want to access the internet, how would be traffic flow? Would the traffic from X&Y AP will go tunnel all the traffic towards WLC and then it will be routed to internet gateway?is it possible for Bldg X&Y AP to directly send traffic towards Internet Gateway without going to controllers?
I have planned to put WLC at physically different locations in different DC A & B. Is it recommended to have such a design? What would be the Failver traffic volume if Primary WLC goes down and secondary controller takes over?
My Reason to go for Centralized deployment is that i want to achieve Centralized Authentication with Local Switching. Please give your recommendations and feedback
Regards,
Rameez

If Buidling X users want to talk to building Y Users, then how Control & Data Traffic flow will happen between Buidling X & Y. Would all the traffic will go to Primary WLC from Bldg X APs first and then it will be Re Routed back to Buidling Y APs? Can i achieve direct switching between Bldg X&Y APs without going toward WLC?
Traffic flows to the WLC that is the primary for the AP's, then its routed over your network.
If Building X & Y Users want to access the Internet, how would be traffic flow? Would the traffic from X&Y AP will go tunnel all the traffic towards WLC and then it will be routed to Internet gateway?is it possible for Bldg X&Y AP to directly send traffic towards Internet Gateway without going to controllers?
The WLC isn't a router, so you would have to put the Internet traffic an a subnet and route.
I have planned to put WLC at physically different locations in different DC A & B. Is it recommended to have such a design? What would be the Failover traffic volume if Primary WLC goes down and secondary controller takes over?
Like I mentioned... earlier, the two HA WLC has to be on the same layer 2 subnet in order for you to use HA. The guide mentions an Ethernet cable to connect both the HA ports on the WLC.
Thanks,
Scott
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System Design Question using BPEL

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