SAP WebDispatcher Vs Hardware Load Balance

Hello Gurus
I need take a decision about use or not SAP WebDispatcher for a large customer. We estimated the numbers for the service in more than 4000 hit/sec. How I can compare the service level and features or both solutions?
Regards,
Carlos

The help docs at help.sap.com are quite good for the initial install of the sap webdispatcher
Start here: http://help.sap.com/saphelp_nw04/helpdata/en/f5/51c7d170bc4a98b1b5a0339213af57/frameset.htm

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Lync Server Front End 2 Hardware Load Balancer IP

I currently have the following Setup.
I only have 1 Hardware Load Balanced IP for my Front End Pool.
After running the Lync Planning Tool it actually states that i need 2 Hardware Load Balanced IP, 1 for internal and 1 for external.
My question would be would i be able to configure for mobility and external access with just using 1 Hardware Load Balanced IP?
Because i seem to have problem with connecting to the front end server based on the following scenario.
Without Reverse Proxy Mapping (port 80/443 internet to port 80/443 reverse proxy to port 80/443 lyncpool frontend)
Internal Access (No Issue)
Lync Mobile 2013 App (Can Connect and chat but intermittent connection) *gets disconnected if i access video/audio
Lync Client 2013 Externally (Cannot Connect to Server)
https://meet.domain.com (working)
With Reverse Proxy Mapping (Port 80/443 internet to port 8080/4443 reverse proxy to port 8080/4443 lyncpool frontend)
Internal Access (No Issue)
Lync Mobile 2013 App (Cannot connect)
Lync Client 2013 Externally (Cannot connect)
https://meet.domain.com (Not working)
Would i actually need to have a additional front end pool IP for external access? or can i maintain it as it is?
I do not understand why without the mapping it can work whereas if i do the mapping according to technet article it won't work.
Everything is running windows server 2012 R2 and Lync 2013, Loadbalancer / Reverse Proxy is the same F5 Appliance
Any assistance on this is greatly appreciated.

Hi Greg,
I have been making use of it (https://testconnectivity.microsoft.com/) to test my autodiscover and remote
access.
Like i mentioned it is weird that without doing port mapping from 80/443 to 8080/4443 i was able to pass
the autodiscovery and all but once i changed to the proper steps to do port mapping it stopped working.
and im not using TMG but using a F5 Hardware Reverse Proxy which also happen to be my Load Balancing Appliance.
Is there anyone who can help give me more details if i need 2 VIP for the front end ?

Defining SERVER_NAME to use RUN_REPORT_OBJECT on a hardware load balancer

Hi everybody,
We are deploying a Forms application on OAS (actually Forms & Reports Services - FRS) 10.1.2.0.2 using a hardware load balancer, that distributes workload between two FRS instances on separate computers.
Forms work without a hitch, but it is executing reports that's not working.
The problem is that when using RUN_REPORT_OBJECT you have to supply the REPORT_SERVER parameter, and each computer has a different report server name, but you don't know in advance wich FRS instance you are going to connect to, because the URL is that of the load balancer.
We thought that omitting the report server name from the report_object would do the trick but then we get an "FRM-41211 integration error" message
What would be the right o recomended way to solve this problem?
Thanks in advance,
Miguel.

What would be the right o recomended way to solve this problem?I don't know what would be the right or recomended way, I can say how we solved the problem in our Forms/Reports applications.
We have a lookup table where each machine has some parameters configured, one of which is the reports server name. The first form in each application identifies the machine where it's running, and reads corresponding rows in that table.

Doubt on Hardware Load Balancing?

Hi Community,
I think there are two ways to perform the load balancing.One of them is proxy and other one is hardware load balancing.I have know something about the Proxy related Load balancing using Apache,oracle HTTP server and others.My question,I don't know about the single bit of Hardware load balancing,i refer the some sites but it is not benefits for me.So please guide me to configure the hardware load balancing for my cluster..
Regards,
Ove..

Hi,
Find the document for configuring the hardware load balancer with Weblogic
1.F5 load balancer
https://www.f5.com/pdf/deployment-guides/bea-bigip45-dg.pdf
2.Cicso
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/App_Networking/weblogicdg.html
http://www.cisco.com/en/US/solutions/ns340/ns517/ns431/ns432/net_design_guidance09186a0080908169.pdf
Additional Info
http://pauldone.blogspot.in/2013/04/load-balancing-t3-initial-context.html
Best Load Balancing Hardware | TechSource
Oracle Weblogic Server Administration: Load Balancing in Weblogic Server
http://www.broadband-testing.co.uk/download/ZeusBEAWebLogic.pdf
http://www.ateam-oracle.com/using-weblogic-as-a-load-balancer/
Hope it helps

Coyotepoint E350 and OracleAs 10g Hardware Load Balancing SSL

Hi:
Has anyone been successful using a CoyotePoint E350 with XCEL SSL accelerator card and OracleAS 10g with SSL to hardware load balance an HTTPS site?

You're on the right track adding the SSL certificate to the Load Balancer. I'm not really sure what you mean 'without the use of Webcache'? However, if I had the choise, I'd always add the certificate to the Load Balancer.
A good document setting up a load balanced environment is the Enterprise Deployment Guide. Chapter 8 describes the tasks for a Forms environment.
Regards,
Martin

Hardware load balancer config

Hi,
EBS Release-12.1.3 ,
Apps -2 nodes HA,
Hardware load balancer-F5 in DMZ(Single Entry point for load balancing)
We have chosen HTTP Layer Hardware Load Balancing for persistentant session config
please advice that what kind of changes we need to do at the application level in order to implement Hardware load balancer like,
Can we configure EBS application to run on 443 port ,so as to directly redirect appln url from hardware load balancer to 443 port of EBS application node.
without reverse proxy configuration.
If reverse proxy in DMZ is required then how hardware load balancing will be configure for http layer balancing between nodes.
As we have iSupplier in internet connectivity,please suggest which kind of implementation we can go for.
Thanks
Edited by: user10702579 on 21 Sep, 2012 3:46 AM

Not necessarily - it depends on how F5 is configured. As stated, one of the settings on the F5 allows traffic from the client to be addressed to the virtual URL on the F5 using port 443 (https), and the F5 can then direct traffic to the real application servers on the port on which EBS is configured. The return traffic from the application server back to the F5 uses the same EBS port, and when the F5 send the traffic back to the client it can use 443 - so as far as the client is concerned, it looks like the entire application is SSL enabled (using 443).
If this setting is not configured in the F5, then EBS will have to be reconfigured to use 443 throughout.
HTH
Srini

Hardware Load Balancing Tuxedo

In a PeopleSoft scenario, can i use a hardware load balancer to scale out multiple PeopleSoft app servers on the JOLT port?
In theory, i think i should be able to , but for some reason it does not work.
Thanks
Alok

Hi Alok,
At the moment, we don't certify load balancers with Tuxedo, although I'm not sure why you are encountering errors using a hardware load balancer. I know other customers are using them successfully. Which load balancer are you using and how do you have it configured?
Regards,
Todd Little
Oracle Tuxedo Chief Architect

Hardware Load balancing

Hi,
I have 2 Oracle 9i Database Servers running on Sun systems which are physically located in 2 different locations connected by a leased line.
We would like to load balance these Servers which are physically located far using a Hardware Load Balancing device, ServerIronXL from Foundry Networks using IP.
I would like to know if there would be any issues from the Oracle Application while doing so?
I would also want to know if U want to suggest any other Hardware other than ServerIron to do this load balancing?
Best Regards,
Srini

Hi,
The SUN1 goes down because his source goes down.
Instead of the Source that is sending data do SUN1, a small unit is coming up and replacing the Source for 4 hours, but it feeds the SUN2 with data. That will be later on send to again SUN1, so to avoid duplication of data (sun2 is receiving data from sun1 all the time) , SUN2 is just holding the data until the Source comes up and starts feeding the SUN1. the data that was on sun2 will be deleted as soon the Source comes up.
While the Sun1 is down the Sun2 must feed information to the Web site.
It is just to split traffic during a certain period of time (4 hours, while the maintenance is happening), the rest of the 24 hours the sun2 is a Backup location, and it must contain the exact live copy of SUN1, and be ready to jump into production if something goes down on SUN1.
Regards,
Srini

Hardware Load Balancing Configuration and Session Clustering

          I would like to know where I can find any information on Hardware Load Balancing
          Configuration in order to leverage WLS HTTPSession clustering.
          Don Ferguson mentioned white papers on this subject however I can't seem to locate
          them.
          I am particularly interested in Cisco's 11000 Content Service Switch.
          Thanks.
          Mike Jones


Scroll to the bottom of this link. It discusses how to configure Alteon and Big-IP.
          The principles should apply to Cisco as well, but we don't have documentation on
          configuring it, as far as I know.
          http://e-docs.bea.com/wls/docs61/cluster/index.html
          -Don
          Michael Jones wrote:
          > I would like to know where I can find any information on Hardware Load Balancing
          > Configuration in order to leverage WLS HTTPSession clustering.
          > Don Ferguson mentioned white papers on this subject however I can't seem to locate
          > them.
          > I am particularly interested in Cisco's 11000 Content Service Switch.
          >
          > Thanks.
          >
          > Mike Jones

General Hardware Load Balancer question

We are considering setting up a hardware load balancing configuration for Oracle Appliaction Server. I was wondering if anyone has any helpful infroamation about this, i.e. hardware vendor, ease of setup and configuration or any other helpful hints.

As long as they fill your minimum requirements, they are kind of equally good. In my private opinion BIG IP is the best one could get, and I have had least issues with that Load Balancer. It's also very flexible and you can do all possible configurations with it.
However, as I said as long as any Load Balancer fulfills your requirements (balance request, sticky/persistence, SSL termination?) they should be as good as well.
Regards,
Martin

SAP GLM Print Request - Load Balancing of WWI server

Hi GLM Experts,
I am using new GLM + module that generates labels based on Print Requests. I am unable to understand how I can load balance the WWI services when there are multiple label printing requests.
In GLM + we associate a WWI to a Print Station and which can then be associated with a printer. So in the configuration we are tying up a printer a WWI.
Also during label printing, if the scenario uses print request module, then the use need to select a print station and printer. What happens if the WWI related to the print station is down?
For example I have two services in WWI server GENPC1 and GENPC2. I created WWII and WWI2 as two print stations. I will associate my printer PRNWWI to both the print stations WWI1 and WWI2.
During label printing if the user picks and WWI1 and Printer PDNWWI and if the GENPC1 WWI server assocaited with print status WWI1 is busy and down I want WWI GENPC2 to generate the label?
How to setup the above load balancing or fall back? Please let me know.
Thanks
Pugal

Dear Pugal
we are not using GLM + and I am not sure about the technqiue used there to handle load balancing. Regarding general WWI setup I assume you know this Note: EH&amp;S: Availability and performance of WWI and Expert servers
On the top there is a further SAP Note abvailable which might be of interest. This is referenced here:
http://de.scribd.com/doc/191576739/011000358700000861002013-e
May be check OSS note: 1958655; OSS Note 1155294 is more related to normal WWI stuff; but may be check it as well. May be 1934253 might help better
May be this might help.
C.B.
PS: may be check as well: consolut - EHS_MD_140_01 - EH&amp;S-Management-Server einrichten
The load balancing of synchron WWi servers is donein the "RFC" layer, therefore you have no inffluence here, for asynchron WWI servers you can do a lot to manage the WWI load balancing by using "exits" etc.

How to use Webdispatcher as a load balancer?

We have multiple java instances for an EP7.
We want to use a webdispacher to do load balance.
I saw one document before but cannot find it anymore.
Please help. Points guaranteed. Thanks!

Check this SAP help documentation
http://help.sap.com/saphelp_nw04s/helpdata/en/5f/7a343cd46acc68e10000000a114084/content.htm
Regads,
Prasanna Krishnamurthy

Hardware load balancing with session stickiness

Hello,
          We are looking for a hardware based solution to load balance 4
          unclustered weblogic servers. These servers are software replicas of
          each other and share a common database. We need a solution that
          provides session level server stickiness based on jsessionid as both a
          cookie and url rewrite. Currently we have Cisco load balancers which
          do not handle the url rewrite due to the fact the the load balancer
          only "sees" what is after the question mark in the url and the
          jsessionid is before the question mark. Example:
          http://somehost.com/some/url.jsp;jsessionid=26D5C566075663ABD8E17AD255974323?parm=value
          I'm sure we are not the only ones trying to do this. Any suggestions
          would be greatly appreciated.
          Thanks,
          Alan George


          Having worked on Cisco load balancer and WLS clustered, you would loose sessions
          when the requests are failed over.
          S
          "Shawn Kircher" <[email protected]> wrote:
          >
          >Has anyone got this type of scenario working where you load balance sticky
          >sessions
          >from a Cisco load balancer between non-clustered weblogic servers?
          >
          >Thanks,
          >
          >Shawn
          >
          >"Aravind Krishnasamy" <[email protected]> wrote:
          >>F5 or BigIp provides hardware level load balancing and it injects date
          >>inside weblogic cookie and maintains server affinity.
          >>Thanks
          >>Aravind
          >>"ageorge" <[email protected]> wrote in message
          >>news:[email protected]...
          >>> Hello,
          >>>
          >>> We are looking for a hardware based solution to load balance 4
          >>> unclustered weblogic servers. These servers are software replicas
          >>of
          >>> each other and share a common database. We need a solution that
          >>> provides session level server stickiness based on jsessionid as both
          >>a
          >>> cookie and url rewrite. Currently we have Cisco load balancers which
          >>> do not handle the url rewrite due to the fact the the load balancer
          >>> only "sees" what is after the question mark in the url and the
          >>> jsessionid is before the question mark. Example:
          >>>
          >>>
          >>http://somehost.com/some/url.jsp;jsessionid=26D5C566075663ABD8E17AD255974323
          >>?parm=value
          >>>
          >>> I'm sure we are not the only ones trying to do this. Any suggestions
          >>> would be greatly appreciated.
          >>>
          >>> Thanks,
          >>>
          >>> Alan George
          >>
          >>
          >

SSL termination using Hardware Load Balancer

We are trying to implement SSL at the Hardware LoadBalancer layer and terminate the SSL there. Architecture includes Apache Reverse Proxy and Portal server running EP7 SP18. In this scenario we want encruption between the client browser and the Load Balancer (BigIP F5). The Load blancer will then decrypt the request and send it to the Apache reverse proxy on port 80. Apache Reverse proxy will send request to Portal J2EE engine on the http port.
this scenario seems to work in most cases but we are having issues with the standard portal login page. The login page is sent to the browser on https but when entering credentials and selecting the login button a request gets generated on port 80, not 443 (https) and is not serviced by the load balancer. 99% of the requests that get generated from the client borwser stay on port 443 as expected but for some reason this particular request switches to port 80.
How can we keep all requests generated on port 443 (https)?

Hello Brian (all)
I am facing the same issue - except we do not have the Apache proxy in the setup..... just HTTPS to a Cisco ACE load balancer and then HTTP to the portal.
Nearly all of the portal content is working great, but am facing the situation that some ESS content is switching to HTTP. In discussing with the network team, they have done the following:
1/ Replies from the portal server back to the client have an SSL rewrite performed, which modifies a 301 or 302 reply and changes http ULRs to https.
2/ The load balancer adds an HTTP header u201CClientProtocol httpsu201D to the request it sends to the portal server.
They feel we need to find a way to have the portal server only send either references with no host:header (i.e. http) or only send host:header with https to keep it all SSL.
Any advice?
Edited by: Eric Poellinger on Jan 5, 2011 5:09 AM

SSO with SAP R/3 with load balancing as backend over the Web AS

Hi,
we have Netweaver 2004 at this time and we have to connect the portal to a BSP application in a load balancing environment.
We set user mapping for the user and set the connection type from SAPLOGONTICKET to UIDPW. This is running for a test environment with only one R/3 system without load balancing.
Does anyone know the setting parameters for a load balancing environment (ok, the message server and...?).
Thank you.
Best regards
Patrizia

Hi all,
run into the same problem. Setting up a mapping with UIDPW in a non load balanced WEB-AS enviroment for BSP or Webdynpro for ABAP works fine. But if I go to set it up in a balanced system I can see the following behavior. The http request is send to the messageserver. This request enclosed my mapped user and password. The messageserver responds with an HTTP 301 wich contains one of my applicationservers, so far so good. The client sends a new request to the mentioned applicationserver but this time without the UIDPW. So the user will not be logged in.
I was wondering if my backend have to issue logonticket too, cause today it only accept tickets from the portal.
Is this is a bug or a feature?
Regards,
Bernd

SAP WebDispatcher Vs Hardware Load Balance

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