Need a load balancer ?

Dear Sir/Madam,I have 2 Sun boxes and 2 cpu each. We are going to deploy the cluster with 2 WL servers on each machine. I want to make sure something before I start.Q1 : Since I will deploy 2 WL servers on each machine. Does it mean one of the WL will become a Admin server and another one will become mamaged server ? when is the DNS list stored ? Does it mean the admin server will take the request and pass it into other macines ? If that is the case, what if the admin server is down, then that would be a single point of failure, right ?Q2 : Do I need a load balancer for clustering ? Does it make any different if I use or not use 3rd party web server in the front of the WL servers ? In what case do i need a load balancer ? Can I user only one web server for serving 2 WL Servers ?thanks,Eddie

Eddie,
          The Weblogic cluster documentation will help to explain many of your
          questions. (See attached.)
          > Does it mean one of the WL will become a Admin server and another one will
          become mamaged server ?
          By default, the first server up in a cluster is the admin server. There are
          command line parameters for all that stuff though.
          > when is the DNS list stored ?
          I do not understand the question.
          > Does it mean the admin server will take the request and pass it into other
          macines ?
          No. Typically, the admin server is not part of the cluster. The admin server
          should not be part of the cluster.
          > If that is the case, what if the admin server is down, then that would be
          a single point of failure, right ?
          No. RTFM. You really should not skip this part of your requisite reading.
          > Do I need a load balancer for clustering ?
          No. It is nice to have though. It gets rid of the round robin DNS usage. It
          is often faster.
          > Does it make any different if I use or not use 3rd party web server in the
          front of the WL servers ?
          Often in lieu of the h/w load balancer. Sometimes behind the h/w load
          balancer. Yes, it does make a difference, since it alters the setup quite a
          bit. Not necessary in 6.0 with a h/w load balancer, and is necessary in 5.1.
          > Can I user only one web server for serving 2 WL Servers ?
          Theoretically yes, but in reality it seems that most apps need one or more
          than one web server per WL server.
          Peace,
          Cameron Purdy
          Tangosol Inc.
          << Tangosol Server: How Weblogic applications are customized >>
          << Download now from http://www.tangosol.com/download.jsp >>
          "Eddie" <[email protected]> wrote in message
          news:[email protected]...
          > Dear Sir/Madam,I have 2 Sun boxes and 2 cpu each. We are going to deploy
          the cluster with 2 WL servers on each machine. I want to make sure something
          before I start.Q1 : Since I will deploy 2 WL servers on each machine. Does
          it mean one of the WL will become a Admin server and another one will become
          mamaged server ? when is the DNS list stored ? Does it mean the admin server
          will take the request and pass it into other macines ? If that is the case,
          what if the admin server is down, then that would be a single point of
          failure, right ?Q2 : Do I need a load balancer for clustering ? Does it make
          any different if I use or not use 3rd party web server in the front of the
          WL servers ? In what case do i need a load balancer ? Can I user only one
          web server for serving 2 WL Servers ?thanks,Eddie
          [WL60clusterdoc.zip]

Similar Messages

Lync 2013 Enterprise load balancing on the front end and edge pool

Hi,
I am setting up a Lync 2013 Enterprise deployment consisting of a Front End pool (x2 FE servers) and an Edge pool (x2 Edge servers). I'm seeing some conflicting advice regarding load balancing using hardware or DNS for the front end and the edge.
On the front end I have 2 internal DNS records 'lyncfepool1.contoso.local' each of which map to one of the IPs of the FE servers. I've used my details to populate the Detailed Design Planner excel spreadsheet and am told that I require a HLB to load
balance my front end pool. I'm aware of the need to load balance HTTPS traffic internally (which will be done by TMG) however other traffic to the front end (SIP, etc) can be balanced by DNS only, and not require a HLB?
Can someone clarify the front end requirement?
Also - looking now at the edge pool - this site again have two edge servers in a pool. We are using a total of six private IP addresses, two per edge service (2 x av.contoso.com, 2 x sip.contoso.com and 2 x webcon.contoso.com). These will be
NAT'ed by the external firewall and directed to the respective external (DMZ) IP addresses on the Edge servers on port 443. I know this isn't true roundrobin due to the intelligence of the Lync client when connecting (in that the Lync client will connect
to one of the public IPs and if it can't connect, it will know to connect to the other service IP), however I want to clarify this set up, particularly the need to direct the external public IP traffic at the DMZ Edge IP specified in the topology builder.
I've attached a basic diagram of the external/DMZ/Edge side which hopefully helps with this question
Persevere, Persevere, Per..

That is because you will always need HLB for a front-end server since it hosts the Lync webservices which use HTTP/HTTPS traffic.
The description on the calculation tool also describes this correctly:
Supports Standard and Enterprise pools (up to 12 nodes), with pure device-based load balancing or a combination of DNS load balancing and device-based load balancing (for
Lync web services)
You can use either Hardware or DNS loadbalancing for SIP traffic only, but you will always need a HLB for the webservices. Both are applicable for the Front-End so you have either
full HLB for both SIP and HTTP(S) traffic
DNS LB for SIP traffic and HLB for HTTP(S) traffic
Hope this is more clear :-)
Lync Server MVP | MCITP Lync Server 2010 | If you think my post is the answer to your question, please mark it as answer so future visitors can easily find it.

ACE load balancing servers on different subnets...

Hello,
I have the following issue.... need to load balance traffic between two servers already working in two different subnets (vlans), at this point is highly desirable to avoid changing IP addresses. Is it possible to accomplish this goal using ACE? routed or bridged mode? is it strictly necessary to have all servers belonging to a serverfarm in the same subnet?
Thanks in advanced for your support.

Hi,
You can do this, but you have to use client-NAT (Source-NAT) to force the return traffic to pass back through the ACE. You also then need static routes in the ACE context to point at each server. PBR is an alternative approach but I have not implemented that in a live network. The important thing is that the ACE sees both sides of the conversation.
The following extract from a configuration shows the basic principle:
rserver host master
ip address 10.199.95.2
inservice
rserver host slave
ip address 10.199.38.68
inservice
serverfarm host FARM-web2-Master
description Serverfarm Master
probe PROBE-web2
rserver master
inservice
serverfarm host FARM-web2-Slave
description Serverfarm Slave
probe PROBE-web2
rserver slave
inservice
class-map match-any L4VIPCLASS
2 match virtual-address 10.199.80.12 tcp eq www
3 match virtual-address 10.199.80.12 tcp eq https
policy-map type management first-match REMOTE-MGMT-ALLOW-POLICY
class REMOTE-ACCESS
permit
policy-map type loadbalance first-match LB-POLICY
class class-default
serverfarm FARM-web2-Master backup FARM-web2-Slave
policy-map multi-match L4POLICY
class L4VIPCLASS
loadbalance vip inservice
loadbalance policy LB-POLICY
loadbalance vip icmp-reply active
loadbalance vip advertise
nat dynamic 1 vlan 384
service-policy input L4POLICY
interface vlan 383
description ACE-web2-Clientside
ip address 10.199.80.13 255.255.255.248
alias 10.199.80.12 255.255.255.248
peer ip address 10.199.80.14 255.255.255.248
access-group input ACL-IN
access-group output PERMIT-ALL
no shutdown
interface vlan 384
description ACE-web2-Serverside
ip address 10.199.80.18 255.255.255.240
alias 10.199.80.17 255.255.255.240
peer ip address 10.199.80.19 255.255.255.240
access-group input PERMIT-ALL
access-group output PERMIT-ALL
nat-pool 1 10.199.80.20 10.199.80.20 netmask 255.255.255.240 pat
no shutdown
ip route 0.0.0.0 0.0.0.0 10.199.80.9
ip route 10.199.95.2 255.255.255.255 10.199.80.21
ip route 10.199.38.68 255.255.255.255 10.199.80.21
HTH
Cathy

Reverse Proxy and Load Balancer for SMP 2.3 and Agentry Application

Hi Expert,
I'm putting in place a mobile solution composed by SMP 2.3 SPS 4 and SAP ECC 6.0. In the SMP 2.3 I created the agentry server and I have deployed my agentry application.
My SMP/Agentry infrastructure is composed by two servers therefore I need a load balancer for balance the load into the several servers. Furthermore I need to use a reverse proxy in my DMZ zone.
Based on what indicated in the SAP note "1904213 - SAP Mobile Platform Server Release Information" the Apache Reverse Proxy is not supported for Agentry clients. Agentry uses nginx for Reverse Proxy.
I also found the following document How-to-Guide for Reverse Proxy and Load Balancing in SAP Mobile Platform 3.x that explain how to set-up a reverse proxy and load balancer with nginx and apache.
Both the SAP note and the HOW to document are refereed to SMP 3.0 and not to SMP 2.3.
I would know if the NGINX must be used also for SMP 2.3.
Any suggestion/information is appreciated.
Thanks in advance
g.

Please see Agentry Network Landscapes

WAN Load-Balancing and multi VLAN design

Hello,
I need some help to define the design of a specifi LAN-WAN network.
1) There are 2 independant WAN entries (they have their own ISP-managed router)
2) I need to load-balanced the requests over the 2 WAN
3) If possible, the load-balancer must be redundant (GLBP ?)
4) On the LAN itself, there must be 15 different VLAN
5) We also need a DHCP solution (also redundant if possible) to provide IP to these VLAN, with unique gateway (the load-balancer)
What do I need to implement this configuration ?
And is it possible to configure with as much GUI as possible ?
Thanks in advance for your help.

Dear Mike,
Thank you and welcome to the Small Business Support Community.
It is possible to configure load balancing with NAT, however in this case, remote internet servers will potentially see sessions from remote hosts behind the SRP541W coming from different source IP addresses (the WAN IP addresses), causing the sessions to be reset unexpectedly.
The Policy Routing setting you setup is exactly what I would do in your case.
I hope these answer your question and please do not hesitate to reach me back if there is anything else I may assist you with.
Kind regards,
Jeffrey Rodriguez S. .:|:.:|:.
Cisco Customer Support Engineer
*Please rate the Post so other will know when an answer has been found.

CSS on multiple subnets and separate load balancing

Hello,
I've a situation where I need to load balance incoming clients on subnet A to 3 real servers on subnet B - no problems there.
But I also need to load balance different clients on subnet C to 3 other servers on subnet D and clients on subnet E to 2 servers on subnet F.
Basically I want to use the CSS for 3 different load balancing operations.
Rather than using 3 separate CSS11503s can I do all this with multiple VLANs on the LAN switches and 1 CSS?
Any help appreciated
Regards Tony

you can have as many vlan as you want.
So yes you can do what you want.
Just be aware that the CSS can route as well between those vlans, so if you separation between them you may have to use ACL.
Gilles.

Load Balancing Forms Services with an effective healthcheck

I am in the process of configuring two forms 11.1.2 servers running with weblogic 10.3.5 with multiple forms applications clustered across both physical servers. We are looking to load balance to the various forms applications using a hardware load balancer. Can anyone comment on their experience with setting up effective application healthchecks using either hardware or software load balancers?
For example say that we have 3 applications clustered across 2 servers with the following
URLs:
http://server01:7777/forms/frmservlet?config=myapp1
http://server01:7777/forms/frmservlet?config=myapp2
http://server01:7777/forms/frmservlet?config=myapp3
http://server02:7777/forms/frmservlet?config=myapp1
http://server02:7777/forms/frmservlet?config=myapp2
http://server02:7777/forms/frmservlet?config=myapp3
We would need a checking mechanism on the load balancer that could tell if myapp2 was down on say server01 and therefore block traffic to that application yet keep traffic open for the other 2 apps on the same server.
A specific difficulty with forms is that when the database behind the application is down forms services will return an error message within a displayed error form. From the load balancer's point of view the forms services are "up". We need to find a way of detecting that the application is actually available and not just that the forms services themselves are available. To detect that the forms services are available we might normally use the status check:
http://server01:7777/forms/frmservlet?ifcmd=status
however this will only tell use the availability of the forms services on a physical server and not whether any actual applications are available.
I am aware that f5 do a BIGIP offering that includes some Oracle Forms specific components. Can anyone comment on how they have setup Oracle Forms healthchecks using various load balancing methods. In particular if a load balancer is limited to using WGET commands to check HTTP returned content is there a way of checking a forms application's availability and if not how have other people achieved an effective healthcheck?
Many thanks,
Philippe

Did you ever Get this to work?
I am having some problems trying to load balance with Oracle Forms, Discover and reports Oracle Application Server Release 10g (9.0.4.0.2) and I was wondering if you could help. Has any one ever got this to work consistently? We are an ERP product written mostly in forms (904) and are trying to implement are largest customer there performance issue so we need the load balancing to work. Will also accept other recommendation as cost effective as solutions.
Site 1:
A: SERVER
     Host as1.xyzco.local
     Version 10.1.2.0.2
     Installation Type Identity Management and Metadata Repository
     Oracle Home E:\oracle\inf_1012
     Farm as1db.xyzco.net
o     HTTP_Server
o     Internet Directory
o     OC4J_SECURITY
o     Single Sign-On:orasso
o     Management
B SERVER
     Host as2. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o     Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
C SERVER
     Host as3. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms Discoverer and Reports
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o      Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
All servers Are:
     Windows 2003 Standard Server with current service packs
     Xeon Dual Processor with 4GB ram
     Raid 0 drives 2 for OS and 2 for Oracle
Daniel Brody
[email protected]

Load balancing problem

We need a load balancing setup that share the load for many web applications on multiple backend servers, but we don’t want the web apps to be activated on all backend servers at the same time. We want to configure all apps as “lazy” on all backend servers. They will then be activated when the first request to their DNS is made. Then the app is started on that backend server.
We have hundreds of apps and each backend server will become very slow if all apps are activated on all backend servers. The preferred solution would therefore be to not call all DNS names on all backend servers but to share the balance based on the DNS name in the requests. Sticky-session or sticky source-IP won’t be enough to solve this as they only stick to each user session.
If User-A request www.siteA.com he may be redirected to backend server 1 and then be kept there. But if User-B then requests the same www.siteA.com he may be redirected to backend server 2 and then be kept there. This means that the web application for siteA will be activated and loaded in both the backend servers. When we host hundreds of sites this will be a problem. We may have hundreds of backend servers but they will all end up loading all web apps over time and get out of memory.
The theory to get this work is a load balancer with the following logic:
1.     A request for a certain DNS comes in. For example: www.siteA.com
2.     Load balancer checks if this certain DNS has been redirected to a certain backend server before and if this server is alive
2.1.     (If not redirected before): Redirect the request to the backend server with least load. Store the selected backend route based on the DNS name.
2.2.     (If redirected before): Redirect the request to the assigned backend server for siteA.
3.     If a backend server is down then all DNS requests to this server will be redirected to another backend server with least load. All requests to these DNS names will be assigned to this backend server instead.
h3. Example of set up
Many DNS to one IP
192.168.1.1 www.siteA.com
192.168.1.1 www.siteB.com
192.168.1.1 www.siteC.com
Frontend load balancer
192.168.1.1 (load balancer)
Backend app servers
192.168.2.2 (App server 1)
192.168.2.3 (App server 2)
192.168.2.4 (App server 3)
h3. Snapshot of servers during load
App server 1
www.siteA.com (Activated)
www.siteB.com (Lazy)
www.siteC.com (Lazy)
App server 2
www.siteA.com (Lazy)
www.siteB.com (Activated)
www.siteC.com (Lazy)
App server 3
www.siteA.com (Lazy)
www.siteB.com (Lazy)
www.siteC.com (Activated)

Only from load balancing point of view cluster is not really needed.
apart from session replication and failover capabilities, few more benefits are there with clustering only if you are using a web server also.
Stuck threads can be due to lot's of problems like application issues, load issues etc, So first make sure you are getting stuck thread on both servers or only on one, if on one, then in this case your load balancing not working properly and sending more load to that server, and if you are getting stuck threads on both then try to add one more managed server.
Regards
Mukesh Negi
http://weblogicserveradministration.blogspot.com

Load Balancing for Oracle Release 11i

Hi there,
I am trying to find some recommendations on the need for load balancing in the middle tier for a 3 tier Oracle Release 11i implementation. Here are the questions that I have.
1. Is load balancing very common for a 11i implementation ?
2. What are the probable issues that one might encounter if there is no load balancing ?
3. If there is load balancing how many servers are generally used for the same ?
4. Do we only install Forms server on multiple servers or we install WebDB and Apache on all the servers ?
5. Is it true that Web servers are the most likely to be down and thus mandating the use of load balancing ? If that is true, would it be prudent to install Web Server and Form Server on each server m/c and in the process having redundant servers ?
Let me know your thoughts.
Thanks,
- Raj

I'm in the middle of doing this right now. There is a doc on metalink (233428.1) that details the process. I would highly recommend trying this in dev/test env first. Even though the instructions are very straight forward and not very complicated, I'm still having configuration issues.
Clint

FRM-92101: Load Balancing Forms 10g with Webcache

Hi,
IÂ´m having some problems with Oracle Forms and Webcache 10g and I was wondering if you
could help.
Machines: (Pentium IV 2.6 GHz; 2GB RAM; 80GB HD)
A. Red Hat Linux AS 2.1
Oracle AS 10g - Infrastructure Installation
B. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
C. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
I didnÂ´t apply any Patchsets of Oracle AS 10g. My current version is 9.0.4.0 .
Goal:
Use Oracle Webcache 10g on machine B for Load Balancing an Oracle Forms Application
on machines B and C.
Facts:
The Oracle AS 10g installation on the 3 machines was made without problems.
The Forms Applications are running without problems on both Forms servers in machine B and C.
Symptoms:
IÂ´m getting the following error when I try to access the forms application through Webcache:
FRM-92101: There was a failure in the forms server during startup.
This could happen due to invalid configuration.
Please look in the web-server log file for details.
But, this error happens ONLY when BOTH OC4J_BI_Forms instances (machines B and C) are
running.
When just one of the OC4J_BI_Forms is running everything works fine.
Webcache Configuration:
IÂ´ve followed Metalink note 207668.1: Configuring Web Cache as a Load Balancer for Application Servers
step by step to make the configuration of the following components:
1. Configuration of the origin servers
2. Configuration of Site definitions
3. Configuration of Site to server mapping
After that, IÂ´ve follwed the Metalink note 229900.1: Integrating and using Web Cache with Forms 9i for Load Balancing
step by step to make the configuration of the following components:
4. Session Binding
Then I try to test the Load Balancing and I got the error FRM-92101 when both OC4J_BI_Forms
instance were running.
IÂ´ve searched Metalink and found note 268830.1: Webcache Won't Load Balance 2 Forms Instances.
Following the note instructions I did the following changes:
Added these lines at the end of HTTPD.conf (machine B):
CookieTracking On
CookieName myformscookie1
Added these lines at the end of HTTPD.conf (machine C):
CookieTracking On
CookieName myformscookie2
In Webcache configuration:
IÂ´ve Changed the default session binding from JSESSIONID to "ANY SET COOKIE" for the
site's session binding.
But even after these changes IÂ´m getting FRM-92101 error on the same conditions.
How can I solve this problem ?
Thank you in advance.
Marcus Santos.
([email protected])

Did you ever Get this to work?
I am having some problems trying to load balance with Oracle Forms, Discover and reports Oracle Application Server Release 10g (9.0.4.0.2) and I was wondering if you could help. Has any one ever got this to work consistently? We are an ERP product written mostly in forms (904) and are trying to implement are largest customer there performance issue so we need the load balancing to work. Will also accept other recommendation as cost effective as solutions.
Site 1:
A: SERVER
     Host as1.xyzco.local
     Version 10.1.2.0.2
     Installation Type Identity Management and Metadata Repository
     Oracle Home E:\oracle\inf_1012
     Farm as1db.xyzco.net
o     HTTP_Server
o     Internet Directory
o     OC4J_SECURITY
o     Single Sign-On:orasso
o     Management
B SERVER
     Host as2. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o     Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
C SERVER
     Host as3. xyzco.local
     Version 9.0.4.0.2
     Installation Type Business Intelligence and Forms Discoverer and Reports
     Oracle Home E:\oracle\mid_904
     Farm as2db. xyzco.net
o      Discoverer
o     Forms
o     home
o     HTTP_Server
o     OC4J_BI_Forms
o     Reports Server
o     Web Cache
o     Management
All servers Are:
     Windows 2003 Standard Server with current service packs
     Xeon Dual Processor with 4GB ram
     Raid 0 drives 2 for OS and 2 for Oracle
Daniel Brody
[email protected]

Load Balancing For OIM servers in hyper V

Hi All,
I am very new to load balancing. I am trying to implement load balanceing in our current production setup.
Our current production setup is as below:
Virtualization Platform : Hyper V
Guest OS : RedHat Linux
OIM server : Two OIM servers in clustered mode without any load balancer
As we don't have any load balancers, transactions are not getting distributed between the two application servers. Which is impacting the performance.
First of all can we implement load balancer without impacting much to the application servers. What is the best load balancer that is suitable for our current setup.
It will be great help if you can share some links for the same.
Thanks,
Biswa

Hi All,
I want to mention few more details about our OIM implementation and what we are trying load balance.
SAP HRMS is the trusted source for OIM. We recieve IDOCs for user creation, modification and disable from SAP through JMS queue. OIM doesn't recieve any http transactions.
My understanding is we need to load balance JMS queue. Please confirm
Thanks,
Biswa

Load-balancing in the same IP subnet

Can I use load-balancing in the same IP subnet? I have the servers and client in the same IP subnet. I'd like to load-balance client traffic to server traffic. I also need to load balance traffic between servers. Is possible to configure it only in one VLAN?
For example:
CSS:
interface 4/2
circuit VLAN1
ip address 10.0.0.10 255.255.255.0
service s1
ip address 10.0.0.101
active
service s2
ip address 10.0.0.102
active
service s3
ip address 10.0.0.103
active
service s4
ip address 10.0.0.104
active
owner test
content client
vip address 10.0.0.3
add service s1
add service s2
active
content servers
vip address 10.0.0.4
add service s3
add service s4
active
Cat6500:
interface FastEthernet4/1 - clients
no ip address
switchport
switchport mode access
spanning-tree portfast
interface FastEthernet4/2 - servers
no ip address
switchport
switchport mode access
spanning-tree portfast
interface FastEthernet4/3 - CSS
no ip address
switchport
switchport mode access
spanning-tree portfast
interface Vlan1
ip address 10.0.0.1 255.255.255.0
ip policy route-map pokus
access-list 101 permit tcp any eq 80 any
route-map pokus permit 10
match ip address 101
set ip next-hop 10.0.0.10
Thank you
Roman

yes, it's possible - use trunk with two VLANs (slide 9). or you can use 'transparent' mode (slide 11 - your attachment).
answer to your question (I have the problem to understand why there are two links with the same VLAN on the picture):
on the switch are two port interfaces in *switchport* mode (not trunk). now is it clearly?
result:
both methods (bridge mode with two vlans, or transparent bridge mode) use two vlans. it's on you, which type is for you preferred.
my recommendation is - use first method - one link to CSS with trunk configured in bridge mode (one ip subnet, two vlans, default gw for servers isn't css, but parent router)
martin

Load Balancing FTP Server thru CSM using a single Client IP

Hello,
We have a need to load balance 3 FTP servers. These servers are reached only from a single client IP which is a database server. The FTP method that is being used is currently passive. Our configuration is currently unidirectional, ie, the FTP client (the one database server) sends to the VIP and the FTP Servers then talk directly back to the FTP client and the traffic does not go back through the CSM. The problem is that because FTP negotiates another port to talk on, we have to use sticky so that the connection is sent back to the original FTP server that sent the FTP data port to talk on. But, since we only have a single client IP that is ever used we are not load balancing appropriately across the FTP servers.
Traffic flow goes something like this, tcp port followed after colon as an example
1. FTP Client ----> VIP:21
2. CSM ---------> FTP Server:21
3. FTP Server --------> FTP Client(FTP server says come talk to me on port 1700)
4. FTP Client ---------> VIP:1700
5. CSM ---------> FTP Server:1700
6. FTP Server:1700 ---------> FTP Client
repeat steps 4 thru 6
Here's our hardware and software:
WS-X6066-SLB-APC running 4.2(2)
Config is as follows
module ContentSwitchingModule 9
ft group 101 vlan 9
priority 10
vlan 216 client
ip address 10.209.16.31 255.255.252.0
gateway 10.209.16.1
vlan 20 server
ip address 10.209.0.31 255.255.252.0
alias 10.209.0.11 255.255.252.0
probe ICMP1 icmp
interval 3
failed 3
receive 3
serverfarm FHEPRT
no nat server
no nat client
real 10.209.0.72
inservice
real 10.209.0.73
inservice
real 10.209.0.71
inservice
probe ICMP1
sticky 106 netmask 255.255.255.255 address source timeout 3
policy FHEPRT_POL1
sticky-group 106
serverfarm FHEPRT
vserver FHEPRT1
virtual 10.209.16.71 any
vlan 216
unidirectional
serverfarm FHEPRT
replicate csrp connection
no persistent rebalance
slb-policy FHEPRT_POL1
inservice

You are missing "service ftp" config in the Vip definition. Try the following
vserver FHEPRT1
virtual 10.209.16.71 tcp ftp service ftp
Syed Iftekhar Ahmed

Load Balancing with BEFW11S4

I need to load balance incoming port 80 requests to multiple servers on my network. Is it possible with this router? Didn't see how to do it via the Port Range Forwarding screen.

i don't the feature you are looking for is there in the router ..

Load Balancing multiple web servers

Hi All:
I need to load balance 2 different web servers using sticky connections on a LocalDirector 416.
I need to use cookie-passive mode, which of course relies on a cookie set by the web server.
Problem: The name of the session cookie is different on each web server (IIS) and I'm not sure that I can change it.
Question: What do I pass to the sticky command as the name of the cookie?
Any ideas?
craig

fortunately the cookie are different on the 2 servers otherwise this feature would not work.
The value you enter after the keyword cookie-passive is a 'name' and can be whatever you want (you can also leave it blank/empty).
The LD will learn the cookie directly from the server.
See the documentation at :
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/localdir/ldv42/421guide/42ch05.htm#xtocid8565101
I hope this answer your question.
Gilles.

Need a load balancer ?

Similar Messages

Maybe you are looking for