Cisco load balancer?

Just curious if anybody has tried using a Cisco load balancer with Directory Server (5.x.) Specifically:
http://www.cisco.com/warp/public/cc/pd/si/11000/prodlit/cs105_ds.htm
(They start out talking about web, but if you look further down you'll see they also support LDAP.)
Here's my thought: get two 5.x servers in multi-master configuration behind one of these Cisco products. That way applications that like to cache DNS info on the LDAP server they should be using won't get confused if one of the hosts is taken down for upgrades/whatever. Thoughts?
I guess the other way to handle this would be to run Sun Cluster + necessary stuff for LDAP. Any unbiased opinions as to which approach might be better? ;-)

Or use the Directory Proxy (aka iDAR)...
We have customers using the Cisco load balancer with Directory server 5. Others are using iDAR, others use Sun Cluster... Can't tell which approach is better.
The only issue I forsee with a load balancer in front of 2 masters, is that it may increase the risks of conflicts if the servers are not fully synchronized (such as under heavy load).
Regards,
Ludovic.

Similar Messages

Iview contents missing when using FQDN Cisco Load Balancer

Hello Experts,
We are using Cisco load balancer to distribute the load across the portal servers. Everything was working fine, but after upgrades to the latest support package stack SP18, we ran into some odd behavior. Some of the contents on the iview are blank when using FQDN load balancer URL e.g. http://sap1234.corp.com/irj/portal . But those blank contents does show up if we donu2019t use FQDN e.g. http://sap1234./irj/portal . At this point we are not sure where to start troubleshooting?
Any helps would be appreciated,
Dave
Edited by: davidn on Feb 27, 2009 11:50 AM

Isn't this the same as your other post? I'm locking this one...

CISCO Load Balancer with SAP on Unix and Oracle

Hello Experts,
Explain me the steps How CISCO Load balancing Mechanism works with SAP Enterprise Portal?
If anyone implemented and achieved the same,please explain me the steps to follow from Initial Stage to end of implementation.
Or If you have any documentation on this just share with me or point me to the particular link.
I have seen the below SAP help which is somewhat helpful.
http://help.sap.com/saphelp_nw04s/helpdata/en/d3/e12840d89d185de10000000a1550b0/frameset.htm
I would like to know how CISCO will connect to M/essage Server /Java Dispatcher.
And explain me the steps to follow to implement External Facing Portal using Cisco Loadbalancer.
This should be achieved in Unix environment.
Any help would be greatly appreciated.
Regards,
Karthick Eswaran
*Points will be rewarded for helpful suggestions

We use F5 for loadbalancing, but all hardware loadbalancing solutions should similar. They offer multiple algorithms, we use simple round robin (SAP's webdispatcher has better options for load balancing). You create virtual IP to your CISCO loadbalancer. You then configure Cisco to route traffic to each portal application server. If you have CI + 2 appservers, you configure the loadbalancer to send traffic to cihost:port, appserver1:port, appserver2:port. You also create a DNS alias to the virtual IP of the loadbalancer. End users will use the DNS alias to connect your portal. Typically you use standard ports (80 & 443) on Cisco, so that end user URL does not contain any ports (so http traffic goes to port 80, https goes to port 443). You also need to enable cookie persistence on the load balancer for session persistence.
For external facing portal, you need to have your loadbalancer in DMZ and you want to use SSL. You also need to setup firewall rules for your portal and backend servers.
-RK

Cisco Load balancer and Web Dispatcher to the same portal

Hello Experts,
We have implemented intranet portal with Cisco as the load balancer. Now we need to expose this intranet to the outside world as an extranet portal. So the same portal will be accessed from both intranet and from outside. We are thinking of installing a web dispatcher in the DMZ so that outside users can access the Web Dispatcher URL to access the intranet portal. In effect intranet users will use load balancer and extranet users will use Web Dispatcher to access the same portal. Now my question is if we configure Load Balancer and Web Dispatcher to the same portal, will the portal be able to load balance properly? Is this the right approach?
Thank You,
mansooralip1

Dear Andrew,
We need to provide access to our intranet to some outside companies for them to also use some of our portal applications. As per your answer, I understand that I can configure Web Disptacher to talk to the Cisco Load Balancer of our portal. In this case Web Dispatcher will work just as a reverse proxy. But when I discussed this with one of our basis resource, he told me that when we install and configure Web Dispatcher, it always ask for the Message Server URL and Port number, even if I just want to use Web Dispatcher as a Reverse Proxy. If his concerns are valid, I do not think I will be able to configure Web Dispatcher to access the cisco Load Balancer because I cannot put Cisco load banacer URL and port instead of the Message Server URL and Post Number. Can you kindly share your comment on the same?
Now the second part of my question, if Web Dispatcher cannot be configured to talk to Load Balancer(as mentioned by our basis resource), I will have to use two load balancers. One web Dispatcher in DMZ as a Load Balancer *** Reverse Proxy for the external users. Second the internal Cisco Load Balancer for the intranet users. So the same portal will be accessed by two load balancers. My question here is, in this set up, can the portal work efficieintly here by distributing equal loads two both the server instances?
Thank You,
mansooralip1

Configuring customized ldap ports on cisco load balancer

Hi,
I have configured ldap on a different ports than the 389 and 636. How do I configure this port to be allowed on the Cisco load balancer. I'm a newbie to cisco load balancer. Is there any specific configuration to be followed to set the customized port on the load balancer ?
Any help is appreciated.
Thanks in advance

Hi,
By default, ACE denies all traffic coming to an interface and you need to define ACL's to allow traffic. You can define an extended ACL to allow the traffic from IP's, TCP/UDP ports etc. Please visit the below for details about ACL configuration on ACE.
http://www.cisco.com/c/en/us/td/docs/app_ntwk_services/data_center_app_services/ace_appliances/vA3_1_0/configuration/security/guide/securgd/acl.html#wp1018359
Also, pasting another link for basic TS related to ACE.
http://docwiki.cisco.com/wiki/Cisco_Application_Control_Engine_(ACE)_Troubleshooting_Guide_--_Troubleshooting_Access_Control_Lists
Regards,
Kanwal

CISCO Load Balancing Mechanism with SAP

Hello Experts,
Explain me the steps How CISCO Load balancing Mechanism works with SAP Enterprise Portal?
If anyone implemented and achieved the same,please explain me the steps to follow from Initial Stage to end of implementation.
Or If you have any documentation on this just share with me to my google id kekarthick or point me to the particular link.
I have seen the below SAP help which is somewhat helpful.
http://help.sap.com/saphelp_nw04s/helpdata/en/d3/e12840d89d185de10000000a1550b0/frameset.htm
I would like to know how CISCO will connect to Java Dispatcher.
And explain me the steps to follow to implement External Facing Portal using Cisco Loadbalancer.
This should be achieved in Unix and Windows 2003 environment.
Any idea?
Regards,
Karthick Eswaran
Edited by: Karthick Eswaran on May 21, 2008 12:40 AM

Hello Karthick,
let's say you have 2 servers for your portal:
host1 -> e.g. DB, SCS + CI --> http://host1.my.company:50000/irj/portal
host2 -> DI --> http://host2.my.company:50000/irj/portal
Now you can implement an CISCO hardware load balancer. You have to connect it to your network and reserve one port and another ip adress of it for the portal.
After that you have to add the ip adress of the both servers (host1+host2) to this port, so that the CISCO load balancer knows to which servers it has to forward the incoming connections.
If you use DNS in your company you can now map a more user-friendly name to the CISCO port (e.g. http://portal.my.company:50000/irj/portal) and distribute this link to the users of the portal.
When they connect to the portal via this link the CISCO load balancer will forward the request to one of the configured servers (host1 or host2) depending which one is online and/or the load of them.
I hope I understood your question right and my answer helps a little.
Regards,
Norman Schröder

NW04 Portal and Cisco Load balancer

Hi everybody,
does anyone have a similar landscape as I have?
Reverse Proxy - Cisco Content Switch Module for Load Balancing - two NW04 Portal Servers.
How did you configure the stickyness / Load balancing mechanism on the load balancer in order to get it running?
Cheers
Jochen

Hi,
Web AS Java issues a cookie called saplb.
You can check its value by connecting to the portal and then launching the command
"javascript:alert(document.cookie)"
within the browser. You will get a cookie value like
saplb_*=(J2EE6202500)6202551
The value in brackets determines the Instance; the second number equals the actual ClusterID (can also be found in the VisualAdmin. Usually 50 indicates the 1st server node, 51 the second one etc.
The saplb_*-cookie can be checked by the cisco see Cisco-Link above. Just configure the Cisco to be sticky on the instance number (value in the first brackets, in the example 6202500).
Several Customers do it like this, and actually the SAP Webdispatcher is also using this cookie to determine the instance to distribute the request to.
Good luck Bernhard

Terminate SSL on Cisco Load Balancer

Hi,
We have a rights Management server that will be behind a load balancer. I would like to terminate the SSL on the Load balancer instead of terminating it on the LC server. is there any settings need to be set on the LC server. I will appreciate any help on this topic.

Check the following basic ssl config
http://docwiki.cisco.com/wiki/Cisco_Application_Control_Engine_%28ACE%29_Configuration_Examples_--_SSL_Configuration_Examples
I think you do get a little of ssl resource without a license.
Gilles.

Cisco load balancer with Real to VIP mapping ?

Hi ,
brief about the setup -
Client IP x - Virtual server IP y = Real server IP's A , B ,C
I know that by SLB we can map traffic originating from Client IP x to VIP y towards any of real server IP's (A,B,C).
I want to know how we can map traffic originating from Real server IP's(A,B,C) so that when it reaches Client IP x the source IP should be VIP y.
Please can some body help with this query !!!!

If the real server's default gateway is to the load balancer, whatever that object may be, you could be able to source NAT to the VIP address. With real load balancer I.e. F5's / ACE / netscaler, it's very easy to manipulate the packets and traffic flow

How to configure SSL on Cisco Load Balancer

I want to configure SSL termination on cisco LB. i just want to know is there any license required for this deployment ? please share me some configuration steps to deploy the SSL.
Thanks
Irfan Hussain

Check the following basic ssl config
http://docwiki.cisco.com/wiki/Cisco_Application_Control_Engine_%28ACE%29_Configuration_Examples_--_SSL_Configuration_Examples
I think you do get a little of ssl resource without a license.
Gilles.

XML Publisher Time out setup issue with load balancer

I have a single node install of Oracle Apps 12.0.4. When running an XML report, it completes successfully and I can view the XML report by clicking on the "view output" button.
I have an Oracle Apps 12.0.4 multi-node install with my database and admin tier running on the same box. I also have two app tiers front-ended with a cisco load balancer. In this environment, when I run an XML Report the job completes with a warning. I have reviewed the log file from the Output Post Processor log file and have the below errors.
[10/14/08 3:40:48 PM] [14736:RT4712865] Executing post-processing actions for request 4712865.
[10/14/08 3:40:48 PM] [14736:RT4712865] Starting XML Publisher post-processing action.
[10/14/08 3:40:48 PM] [14736:RT4712865]
Template code: FNDCPPGD_XML
Template app: FND
Language: en
Territory: US
Output type: PDF
[10/14/08 3:44:33 PM] [UNEXPECTED] [14736:RT4712865] java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.Socket.connect(Socket.java:516)
at java.net.Socket.connect(Socket.java:466)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:365)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:477)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:214)
at sun.net.www.http.HttpClient.New(HttpClient.java:287)
at sun.net.www.http.HttpClient.New(HttpClient.java:299)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:796)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:748)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:673)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:917)
at java.net.URL.openStream(URL.java:1007)
at oracle.apps.fnd.cp.util.RemoteFile.readURL(RemoteFile.java:217)
at oracle.apps.fnd.cp.util.RemoteFile.transferFile(RemoteFile.java:195)
at oracle.apps.fnd.cp.util.RemoteFile.transfer(RemoteFile.java:131)
at oracle.apps.fnd.cp.opp.XMLPublisherProcessor.process(XMLPublisherProcessor.java:224)
at oracle.apps.fnd.cp.opp.OPPRequestThread.run(OPPRequestThread.java:172)
I have double check my tnsnames.ora, opened an SR, researched in Metalink & on the web but am unable to find a resolution. Any help would be appreciated. Thanks!

we have the same issue. Any workaround so far?

Office Web Apps Load Balancing Configuration Issue for SharePoint 2013

I have load balanced servers dedicated for Office Web Apps with name “md1xxxwfe1” and “md1xxxwfe2”
, both this servers are load balanced by CISCO Load balancer. And I have mapped Load Balancer Virutal IP with host name officeapps.jda.corp.local in the DNS records.
Things are working fine if I add new farm by using New-OfficeWebAppsFarm
with server name as internalurl in PowerShell console
as like “ -internalurl http://
md1xxxwfe1 but when I use –internalurl officeapps.jda.corp.local it is not working at all. I’m not getting what to do at this point.
I have gone through following blogs but no luck.
http://blogs.technet.com/b/meamcs/archive/2013/03/27/office-web-apps-2013-multi-servers-nlb-installation-and-deployment-for-sharepoint-2013-step-by-step-guide.aspx
http://blogs.technet.com/b/office_resource_kit/archive/2012/09/11/introducing-office-web-apps-server.aspx
http://davidlimsharepoint.blogspot.in/2013/02/installing-and-configuring-office-web.html
http://sps2013.blogspot.in/2013/09/office-web-apps-with-sharepoint-2013.html
The output of the wfe1 server is attached with this. When I open http:// /hosting/discovery in wfe1 I’m getting following result (attached
screenshot) but it should show hostname rather than server name.
Please help me
Thanks, Ram Ch

Hi Ram ,
For troubleshooting your issue, please take steps as below:
Just about any load balancing solution will work, including a server that runs the Web Server (IIS) role running Application Request Routing (ARR):Install
Application Request Routing
Install the certificate on the load balancer as described under Securing Office Web Apps Server communications by using
HTTPS.
Make sure you have configured the cluster correctly for full internet name:
Reference:
http://technet.microsoft.com/en-us/library/jj219435.aspx#loadbalancer
Thanks,
Eric
Forum Support
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support,
contact [email protected]
Eric Tao
TechNet Community Support

CSS11503 load balancing virtual server IP's

Hi CSS experts,
We have a Cisco Content Services Switch 11503 Load Balancer which seems to require Real Server NICs to be plugged in. When I plug a cable from our Cisco 3560 switch into the Cisco Load Balancer, it can't see the 2 web server IP's that I'm trying to load balance for HTTP/HTTPS. The virtual IP does not display the webpage of either web servers.
On the otherhand, when I use two physically separate 1U web servers and physically plug 2 cables (1 for each server) into the CSS 8 port switch, the virtual IP is able to redirect the traffic to both web servers.
How do I configure the CSS to load balance and actually see 2 IP's on the network which isn't plugged in physically per server into the CSS 8 port switch.
Internet->CSS->1 cable plugged into Cisco switch which host 2 web servers.
Thanks,
Mike
Configuration:
circuit VLAN1
ip address 192.168.1.10 255.255.255.0
service Websrv1
ip address 192.168.1.104
protocol tcp
port 80
keepalive type http non-persistent
active
service Websrv1SSL
ip address 192.168.1.104
protocol tcp
port 443
keepalive type ssl
active
service Websrv2
ip address 192.168.1.101
protocol tcp
port 80
keepalive type http non-persistent
active
service Websrv2SSL
ip address 192.168.1.101
protocol tcp
port 443
keepalive type ssl
active
owner Web
content NG
add service Websrv1
add service Websrv2
vip address 192.168.1.7
port 80
protocol tcp
advanced-balance arrowpoint-cookie
url "/*"
active
content NGSSL
add service Websrv1SSL
add service Websrv2SSL
vip address 192.168.1.7
port 443
protocol tcp
advanced-balance sticky-srcip
sticky-inact-timeout 60
active

I checked the connectivity to the servers form the CSS and it was good. I was able to ping, and the connection status in sh service summary incremented by 1 each time I tried to connect. From the server, I was able to ping back to the IP of the CSS and the VIP address as well. I have tried using only 1 server for 1 VIP. I have tried changing the default gateway on the server to the IP of the CSS and the VIP IP as well. It still doesn't seem to help. Anymore suggestions for me to try?
Thanks
Mike

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
          >>
          >>
          >

Load balancing and Virtual directories (solaris w/ iPlanet)

Hi everybody,
I would like some assistance configuring some load balancing. Our environment consists of 6 physical servers, iPlanet 6, Weblogic 8.1, and Cisco CSS content load balancers. I need some help in the obj.conf for iplanet....
I am trying to create a blanket cisco load balancer rule which would be able to cover all future web services our group wishes to create. The cisco load balancer is easy, I just need help on the iplanet obj.conf.
ie.
hardware load balancer
https://webapi.aaa.com/webservices/*
(points to all 6 iplanet instances)
weblogic
URL on a particular weblogic server may be:
http://weblogic1:9001/webservice1/aaa.jws
http://weblogic2:9001/webservice1/aaa.jws
... weblogic6:9001/webservice1/aaa.jws
http://weblogic1:9001/webservice2/bbb.jws
http://weblogic2:9001/webservice2/bbb.jws
... weblogic6:9001/webservice2/bbb.jws
How do I configure the obj.conf to be clustered as well as make the webservice look like it's coming from
https://webapi.aaa.com/webservices/webservice1/aaa.jws
as well as
https://webapi.aaa.com/webservices/webservice2/bbb.jws
(note the prefix of "webservices")
Thanks!
Eddie

Hi,
I agree with the suggestion above. For questions related to IIS, you’d better ask in IIS forum for professional assistance. By the way, I will
change this thread to a general discussion, thanks for your understanding and support.
Best regards,
Susie

Cisco load balancer?

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