Cisco CSS 11503 Arrowpoint/Load Balance question
I am troubleshooting an issue with my 11503. I am running version 07.40.0.04. I have it configured as follows:
content upcadtoa-rule
add service cadtoa-wls1-e0
add service cadtoa-wls1-e1
add service cadtoa-wls2-e0
add service cadtoa-wls2-e1
add service cadtoa-wls3-e0
add service cadtoa-wls3-e1
add service cadtoa-wls4-e0
add service cadtoa-wls4-e1
add service cadtoa-wls5-e0
add service cadtoa-wls5-e1
add service cadtoa-wls6-e0
add service cadtoa-wls6-e1
arrowpoint-cookie expiration 00:00:15:00
protocol tcp
port 8001
advanced-balance arrowpoint-cookie
redundant-index 2
vip address 172.30.194.195 range 2
arrowpoint-cookie name TOA
active
However, the load-balancing across the servers does not seem to be doing much balancing. One of those servers is getting hit with 5 times as much traffic as another and another server is lucky to get a connection at all. With the cookie expiration set, one would think that this would all balance out over time.
I just came across this information from Cisco and I am wondering if it is relevant:
If you configure a balance or advanced-balance method on a content rule that requires the TCP protocol for Layer 5 (L5) spoofing, you should configure a default URL string, such as url "/*". The addition of the URL string forces the content rule to become an L5 rule and ensures L5 load balancing or stickiness. If you do not configure a default URL string, unexpected results can occur.
In the following configuration example, if you configure a Layer 3 (L3) content rule with an L5 balance method, the CSS performs L5 load balancing, but will reject UDP packets.
content testing
vip address 192.168.128.131
add service s1
balance url
active
The balance url method is an L5 load-balancing method in which the CSS must spoof the connection and examine the HTTP GET content request to perform load balancing. The CSS rejects the UDP packet sent to this rule because a UDP connection cannot be L5. Though the CSS allows this rule configuration, its expected behavior would be more clear if you promote the rule to L5 by configuring the url "/*" command.
In the next example, if you configure an L3 content rule with an L5 advanced-balance method, L5 stickiness will not work as expected.
content testing
vip address 192.168.128.131
add service s1
advanced-balance arrowpoint-cookie
active
The advanced-balance arrowpoint-cookie method causes the CSS to spoof the connection, however, the CSS still marks it as an L3 rule. Thus, the CSS does not insert the generated cookie and the rule defaults to L3 stickiness (sticky-srcip). You must configure a URL like url "/*" to promote this rule to L5, ensuring that L5 stickiness works as expected.
Thanks in advance for any help you can give. The thing is not down, it is just balancing strangely causing application performance issues.
James
Hey James,
You will need to suspend the content rule in order to add the url statement. This will cause a quick downtime until the content rule is activated again. I have shown below the commands to add the statement. Perhaps you can create your commands in a Notepad file, then paste them all in so they execute quickly to minimize your downtime:
content MY-SITE
vip address 10.201.130.140
port 80
protocol tcp
add service MY-SERVER
active
CSS11503# config t
CSS11503(config)# owner TEST
CSS11503(config-owner[TEST])# content MY-SITE
CSS11503(config-owner-content[TEST-MY-SITE])# url "/*"
%% Attribute may not be modified on active rule
CSS11503(config-owner-content[TEST-MY-SITE])# suspend
CSS11503(config-owner-content[TEST-MY-SITE])# url "/*"
CSS11503(config-owner-content[TEST-MY-SITE])# active
CSS11503(config-owner-content[TEST-MY-SITE])# exit
CSS11503(config-owner[TEST])# exit
CSS11503(config)# exit
CSS11503# show run
content MY-SITE
vip address 10.201.130.140
add service MY-SERVER
port 80
protocol tcp
url "/*" <--------
active
Hope this helps,
Sean
Similar Messages
-
Hi all,
I have a service object (SO1) which has been set to Load Balancing.
This service object has an attribute which serves as a number allocator
(NA1).
This NA1 provides a unique number across the whole application for each of
the record that require to store into DB.
The problem is, will the NA1 get replicated if the SO1 is replicated?
If yes, will NA1 crash?
Regards,
Martin Chan
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Senior Analyst/Programmer
Dept of Education and Training
Mobile : 0413-996-116
Email: martin.chandet.nsw.edu.au
Tel: 02-9942-9685Hi Serge,
Could you prefix it with the PID of the load balanced process ?No I can't. At least not at the moment.
When a service object is replicated, it is automatically replicated into adifferent partition...
Thanks.
An advice, make the NA1 shared. So if you get to do multithreaded accessto
it, you won't screw up things.I am thinking it may be better off to create it as a service object on it's
own.
How is the number returned by the NA1 generated ?It gets generated by Forte's code.
... Try to make it so that the
load balanced partitions don't need to access the database more than onein
5 min. to get a new Seed Key. This would not need to PID.Thanks for your advise.
Regards
Martin Chan
-----Original Message-----
From: Serge Blais [mailto:Serge.BlaisSun.com]
Sent: Tuesday, 3 April 2001 14:17
To: Chan, Martin
Subject: RE: (forte-users) SO Load Balancing Question
Your right, they can generate the same number. How much control do you have
over the ID being generated? Could you prefix it with the PID of the load
balanced process ?
Just a note: When a service object is replicated, it is automatically
replicated into a different partition, possibly on the same machine or on a
different one.
An advice, make the NA1 shared. So if you get to do multithreaded access to
it, you won't screw up things.
How is the number returned by the NA1 generated ? If NA1 is using a stored
procedure, or something like:
Start TRX
read number
newnumber = number+5000
write back newnumber
End Trx
Something like will be very safe. The Database Index Table is taking care
of the critical section. Then you can be sure that each replicate can be
independent (not hit into each other) for 5000 iterations. Depending on the
frequency, you may want to up this number or lower this number. Too high it
would make the key very high very soon with wholes in the sequence. Too low
and you would have hit between the replicates. Try to make it so that the
load balanced partitions don't need to access the database more than one in
5 min. to get a new Seed Key. This would not need to PID.
Serge
At 01:59 PM 4/3/2001 +1000, you wrote:
Hi Serge,
The number return by the NA1 is used as a primary key for each of therecord
that stores in the DB.
The Number Allocator NA1 is required to access to DB to update an ID table
which carry the next available sequence number. NA1 will only update this
table for every 5000 records.
For example, the initial value of the sequence is: 1
The next update will change the value to 5001, next will be 10001 and soon.
>
The properties of this NA1 class at runtime
Shared - Disallowed
Distributed - Disallowed
Transactional - Is Default
Monitored - Disallowed
Unfortunately, this attribute is not a handle but is instantiated by theSO1
itself.
I have been thinking, if SO1 is replicated within the same partition, and
each replicate will carry its own NA1. NA1 and the replicate of NA1 may
return a same number if their initial values of the sequence are the same.
Correct?
Regards
Martin Chan
-----Original Message-----
From: Serge Blais [mailto:Serge.BlaisSun.com]
Sent: Tuesday, 3 April 2001 13:11
To: Chan, Martin; forte-userslists.xpedior.com
Subject: Re: (forte-users) SO Load Balancing Question
Let's see if I understand right.
You have a service object that keep a handle to an object that either keep
state information, or that generate state information. Now the thing to
figure out is which is it. Let's assume that NA1 is a number generator,
that does not need to be synchronized or that doesn't need to access any
external resource. It would still work, depending on the algorythm you are
using.
Will they share the same NA1? It depends on the nature of NA1, but for sure
NA1 would have to be an anchored object. An if multiple partitions would
share the same object "only" for key generation, you would bring down your
performance on key generation or key update (by adding one inter-process
call).
In short:
1. Many scenarios can happen, you need to be clearer on your description.
2. If you are sharing an object by load balanced partitions, this greatly
reduce the gain of load balancing the partition.
3. If NA1 is keeping state, any access to it would need to be controlled
"shared".
Have fun now...
Serge
At 12:30 PM 4/3/2001 +1000, Chan, Martin wrote:
Hi all,
I have a service object (SO1) which has been set to Load Balancing.
This service object has an attribute which serves as a number allocator
(NA1).
This NA1 provides a unique number across the whole application for each
of
the record that require to store into DB.
The problem is, will the NA1 get replicated if the SO1 is replicated?
If yes, will NA1 crash?
Regards,
Martin Chan
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Senior Analyst/Programmer
Dept of Education and Training
Mobile : 0413-996-116
Email: martin.chandet.nsw.edu.au
Tel: 02-9942-9685
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.comSerge Blais
Professional Services Engineer
iPlanet Expertise Center
Sun Professional Services
Cell : (514) 234-4110
Serge.BlaisSun.comSerge Blais
Professional Services Engineer
iPlanet Expertise Center
Sun Professional Services
Cell : (514) 234-4110
Serge.BlaisSun.com -
I hope that someone can help with 2 simple (i think) CSS questions.
1. When configured properly for load balancing, should the CSS round-robin between servers or will it continue to use only one server until triggered by some event or parameter?
2. If 1 of 2 load balanced servers fails, how does load balancing proceed? Will it continue to try to load balance between the servers or will it give up on the failed server unitil some event or timeout occurs?
Thanks in advance,
EliotHi Eliot,
The CSS can be configured to perform load balancing in a variety of different ways. Least connections, round robin, ACA etc. Each new connection through the CSS will be round robined over each of the servers in your server group.
If a server fails then the CSS will know it has failed through the use of keepalives (based on TCP connection, ICMP etc) and no longer send requests through to that server. Traffic associated with a previous connection to the failed server will be sent to on of the surviving servers. It is then up to the behavior of the application as to if the user experiences any disruption.
Hope this helps
Brett -
My company is in the process of building a small scale network architecture strictly for testing purposes. We have a DMZ area that contains 2 load balancers and 1 web server. The web server is a SunFire 280 and has two gig e nics. They want to cable one nic to one load balancer and one nic to the other. Since this is only one box we have to put the nics on separate subnets. The question is, can I configure the load balancers in a failover situation of an active active situation with one load balancer on one vlan and another load balancer on a separate vlan.
I did not able to understand why you want to give ip to two NICs from different subnets.
There is NO any requirement, like that. If you have your own requirement can you explain me that?
Ashman -
Hi,
I have CSS in single arm deployment model. I have multiple servers load balancing on this CSS on port 80 etc. Today I am trying to load balance one Oracle server but I am facing problem with it.
Real servers are accessible on port 80 without any problem but when we are trying to access the same servers on VIP we are not able to see the web page.
real server http://192.168.17.12/irs.htm
real server http://192.168.17.14/irs.htm
real server http://192.168.10.37/irs.htm
VIP
http://192.168.200.58/irs.htm
Below is the configuration. I can do the telnet on port 80 and I can ping the VIP IP address.
I will only put 192.168.200.58 in browser I can see the oracle page but with the full URL i am not able to see it.
Though I have other oracle servers which I have load balance with the same configuration and I can access the web page.
==========================================================================================
http://tptest.enoc.com/forms/frmservlet?config=tp (This is working fine).
========================================================================
http://irs.enoc.com/irs.htm (This is not working).
By name and by IP address both are not working.
http://192.168.200.58/irs.htm (This is not working).
=============================================================================
service IRC_1
ip address 192.168.17.12
keepalive type tcp
keepalive port 80
active
service IRC_2
ip address 192.168.17.14
keepalive type tcp
keepalive port 80
service IRC_DR
ip address 192.168.10.37
keepalive type tcp
keepalive port 80
content ENOC_IRC
add service IRC_1
add service IRC_2
add service IRC_DR
vip address 192.168.200.58
protocol tcp
port 80
advanced-balance sticky-srcip
active
owner ENOC_GIT
content ENOC_IRC
add service IRC_1
add service IRC_2
add service IRC_DR
vip address 192.168.200.58
protocol tcp
port 80
advanced-balance sticky-srcip
active
group ENOC_IRC
add destination service IRC_1
add destination service IRC_2
add destination service IRC_DR
vip address 192.168.200.58
active
===================================================================================================
ENOCDC-CSS01(config)# show service summary
Service Name State Conn Weight Avg State
Load Transitions
IRC_1 Alive 0 1 2 0
IRC_2 Suspended 0 1 255 1
IRC_DR Suspended 0 1 255 1
ENOCDC-CSS01(config)# show summary
Global Bypass Counters:
No Rule Bypass Count: 0
Acl Bypass Count: 0
Owner Content Rules State Services Service Hits
ENOC_GIT
ENOC_IRC Active IRC_1 103
IRC_2 10
IRC_DR 7
=======================================================================================================
Same setting I am doing for other servers and working fine only for these servers I am facing problem. Curently only one server is active in the configuration.
Kindly let me know what I am missing and how to fix the problem.
I have also attached the full configuration of CSS.Hi,
My point of concern is that I did the same for Oracle server and this is working fine
http://192.168.200.95/forms/frmservlet?config=tp
only when I am doing the load balancing for
http://irs.enoc.com/irs.htm (This is not working).
By name and by IP address both are not working.
http://192.168.200.58/irs.htm (This is not working).
I dont have a option for TAC case is there a a way to fix the problem by apply other load balancing method. Is there something to do with the Circut VLAN. I didnt create the Circut VLAN 17 where this server is located.
I am doing almost 8 differenceservers load balancing in this CSS.
your expert opinion will definately help me. -
Clustering problems and load balancing question
I am using Weblogic 6.1. My Windows NT environment consists of 10 web client-simulator
machines, 2 App. Server machines and one database server machine. I have defined
one cluster on each app. server. Each cluster is running 3 Weblogic instances, or
so it should be when I fix my problems!
My questions/problems are the following:
1. Can I use a software dispatcher to perform workload balancing between the 2 weblogic
clusters? That is, the client-simulator machines send the requests to the software
dispatcher which performs workload balancing between the 2 Weblogic clusters. The
clusters perform round-robin amongst all instances. Note that the documentation only
talks about Hardware Balancing.
2. I am having problems with my multicast IP addresses. For instance, on one App.
Server machine, I am using the multicast IP address: 239.0.0.1 for MyCluster. When
I start the Admin Server, I get a JDBC error: "... multicast socket error: Request
Time Out". I have used the utils.MulticastTest utility which shows the packets not
being received:
I (S1) sent message num 1
I (S1) sent message num 2
I (S1) sent message num 3
I (S1) sent message num 4
What am I doing wrong?
3. Re. the cluster configuration:
NOTE: I have executed my workload using 2 independent App. Server machines with a
software dispatcher - no clustering. Each App. Server used a jdbc connection pool
of 84 database connections. The db connections happened to become my bottleneck.
When I tried to increase the number of connections in the jdbc pool, throughput decreased
dramatically. Thus, I decided to add a cluster of Weblogic instances to each one
of my 8 x 900Mhz machines in order to scale up. Unfortunatly, adding clusters have
not been that simple a task - probably because I am totally new to the Web Application
Server world!
Here is what I've got so far:
I have obtained 3 static IP addresses for the 3 instances of Weblogic instances that
I wish to run within the cluster. All servers in the cluster use port number 80.
There is a corresponding DNS entry for each IP address. My base assumption is that
one of these instances will double up as the Administration Server... Is it true,
or do I need to define a separate Admin server if I wish to run 3 Weblogic instances
(each with a connection pool of 84 database connections for a total of 252 database
connections)?
Do I need to re-deploy my applications for the cluster? And if so, would this explain
why I am having problem starting my Admin Server?
I think this is it for now. Any help will be greatly appreciated!
Thanks in advance,
Guylaine.
Guylaine Cantin wrote:
> I am using Weblogic 6.1. My Windows NT environment consists of 10 web client-simulator
> machines, 2 App. Server machines and one database server machine. I have defined
> one cluster on each app. server. Each cluster is running 3 Weblogic instances, or
> so it should be when I fix my problems!
>
> My questions/problems are the following:
>
> 1. Can I use a software dispatcher to perform workload balancing between the 2 weblogic
> clusters? That is, the client-simulator machines send the requests to the software
> dispatcher which performs workload balancing between the 2 Weblogic clusters. The
> clusters perform round-robin amongst all instances. Note that the documentation only
> talks about Hardware Balancing.
>
We also support software load balancers (for e.g. resonate)
The software dispatcher should be intelligent enough to decode the
cookie and route the request to the appropriate servers. This is
necessary to maintain sticky load balancing.
> 2. I am having problems with my multicast IP addresses. For instance, on one App.
> Server machine, I am using the multicast IP address: 239.0.0.1 for MyCluster. When
> I start the Admin Server, I get a JDBC error: "... multicast socket error: Request
> Time Out". I have used the utils.MulticastTest utility which shows the packets not
> being received:
>
> I (S1) sent message num 1
> I (S1) sent message num 2
> I (S1) sent message num 3
> I (S1) sent message num 4
> ...
>
> What am I doing wrong?
>
You should run the above utility from multiple windows and see if each
of them being recognized or not.
i.e. java utils.MulticastTest -N S1 -A 239.0.0.1
java utils.MulticastTest -N S1 -A 239.0.0.1
> 3. Re. the cluster configuration:
>
> NOTE: I have executed my workload using 2 independent App. Server machines with a
> software dispatcher - no clustering. Each App. Server used a jdbc connection pool
> of 84 database connections. The db connections happened to become my bottleneck.
> When I tried to increase the number of connections in the jdbc pool, throughput decreased
> dramatically. Thus, I decided to add a cluster of Weblogic instances to each one
> of my 8 x 900Mhz machines in order to scale up. Unfortunatly, adding clusters have
> not been that simple a task - probably because I am totally new to the Web Application
> Server world!
>
You have to stress test your application several times and set
maxCapacity of the conn pool accordingly.
> Here is what I've got so far:
>
> I have obtained 3 static IP addresses for the 3 instances of Weblogic instances that
> I wish to run within the cluster. All servers in the cluster use port number 80.
> There is a corresponding DNS entry for each IP address. My base assumption is that
> one of these instances will double up as the Administration Server... Is it true,
> or do I need to define a separate Admin server if I wish to run 3 Weblogic instances
> (each with a connection pool of 84 database connections for a total of 252 database
> connections)?
BEA recommends to use Admin server for administrative tasks only
like configuring new deployments, jdbc conn pools, adding users etc..
It's not a good idea to have admin server part of cluster.
>
> Do I need to re-deploy my applications for the cluster? And if so, would this explain
> why I am having problem starting my Admin Server?
>
You have to target all your apps to the Cluster.
> I think this is it for now. Any help will be greatly appreciated!
>
> Thanks in advance,
>
> Guylaine.
>
-
Office Web App Load balancing Question
I am going to install office web app in load balanced farm behing f5. There are few questions i want to ask:
Do i first put servers in load balancer and start installing office web app or after installation of office web app in one server put that in load balancer and add another one or put both in load balancer and start installing.
While i tried without putting servers in load balancer with offload ssl parameter , when i tried to join second server in the farm it gave me error destination unreachable. Is it because with offload ssl parameter it is looking for load balancer or something
else? I checked port 809 from the servers and also verified the user was local admin in both machines.
Any insight will be helpful.
AditPls refer below link for configuration of NLB for OWA servers:
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
Please ensure that you mark a question as Answered once you receive a satisfactory response. -
Hypothetical RAC load balancing question
Im trying to get a better understanding of RAC. Suppose I have the following tnsnames entry on Client1:
DEV =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dev010.net)(PORT = 1795))
(ADDRESS = (PROTOCOL = TCP)(HOST = dev020.net)(PORT = 1795))
(LOAD_BALANCE = yes)
(FAILOVER = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = dev1)
(failover_mode=(type=select)(method=basic))
dev010.net and dev020.net are two nodes that I am trying to balance the connection from Client1 to.
dev010.net and dev020.net have the following listener.ora configurations respectively:
LISTENER_DEV1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dev010.net)(PORT
= 1795))
SID_LIST_LISTENER_DEV1 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /oracle/ora92)
(PROGRAM = extproc)
(SID_DESC =
(ORACLE_HOME = /oracle/ora92)
(SID_NAME = dev1)
LISTENER_DEV2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dev020.net)(PORT
= 1795))
SID_LIST_LISTENER_DEV2 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /oracle/ora92)
(PROGRAM = extproc)
(SID_DESC =
(ORACLE_HOME = /oracle/ora92)
(SID_NAME = dev2)
Question: since 'lsnrctl services' shows LISTENER_DEV1 and LISTENER_DEV2 are registered with services dev1 and dev2 respectively, how do I load balance Client1's connection between the two nodes if its service name is set to dev1?
Can you set up RAC with some sort of master listener?
Im new to RAC, so any help would be appreciated.Try this:
LISTENER =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = IPC)
(KEY = DB1.WORLD)
(ADDRESS=
(PROTOCOL = IPC)
(KEY = DB1)
(ADDRESS =
(COMMUNITY = MYRAC.WORLD)
(PROTOCOL = TCP)
(HOST = )
(PORT = 1521)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = DB101)
(ORACLE_HOME = /oracle/Ora92)
(SID_DESC =
(SID_NAME = DB102)
(ORACLE_HOME = /oracle/Ora92)
) -
Local Director Load Balancing question
Using IOS 3.2.2
I have a local director 416 with 2 real servers. I would like to send all traffic to 1 server and if it fails to switch over to the secondary server. The way I see to do it is to use weighted load balancing and set the weight of the 2nd server to zero. But if the primary server fails what will happen since the secondary server has a weight of zero.
JasonNot being a Cisco employee, I guess I can't define what "proper" is, but with the backup command, you don't need to play with the weights at all.
You just bind the primary real server to the virtual, then assign a backup to the primary. The backup server does not get directly bound to the virtual, so the only way it's going to get any traffic is if the primary server is down. -
Exchange 2013 Load Balancing Question
Hey Everyone,
I have recently started building up my companies Exchange 2013 environment and ran into some questions that I can't seem to find clear answers for on Google.
First, a little bit about my set up:
2 CAS Servers
2 Mailbox Servers
Citrix NetScaler load balancing the external URL (Controlling all incoming ports 25, 80, 443, 587, 993, and 995) to both of my CAS servers
This is not doing SSL offloading, it's just forwarding encrypted traffic to the CAS servers
I have configured a DAG between the 2 mailbox servers and am able to actively move the database my user account is on between the 2 copies with outlook disconnecting / reconnecting in about 10 - 15 seconds of moving it.
My questions started when I saw what Outlook was filling in for the "Server" field once autodiscover set it up. I found this very strange server name in it: *** Email address is removed for privacy ***
Once I read up on it, I think i understand what it does. If i understand correctly, this weird URL is sort of like an old CAS array from Exchange 2010. When I started testing the failover is when I started running into issues.
When I shut down one of my mailbox servers, my outlook will lose connection and it won't come back. The mailbox database that my user account is on successfully failed over to the other DAG copy but outlook never correctly connects. I
believe this issue has something to do with the new CAS functions of Exchange 2013 since DAG works fine.
If I look at my "Connection Status" in Outlook, I see that there are several connections open. All of them have a Proxy server address of "exchange.domain.com" and out of the 3 that show up there, they are all pointed to
the weird URL mentioned above.
Whew, long post but let me summarize my questions below:
1) If exchange is configured to be fully redundant, why does my outlook disconnect when I shut down one of the servers?
2) What is the weird URL pointing to that I mentioned above that is showing in outlook?
3) How can I get outlook to correctly not lose it's connection when any 1 of the servers goes down?
Thanks,
ZacHi,
According to your description, it seems that the load balancer did not configure successfully.
I recommend you refer to the following article to configure the load balancer for Exchange 2013 :
http://blogs.vmware.com/vsphere/2012/11/load-balancing-using-vcloud-networking-and-security-5-1-edge.html
Hope this helps!
Thanks.
Niko Cheng
TechNet Community Support -
Connection Load Balancing question
Hi All,
this is from oracle net8 Administrator's Guide (between double quotes):
"Connection load balancing improves connection performance by balancing the number of active connections among multiple dispatchers. In an Oracle Parallel Server environment, connection load balancing also has the capability to balance the number of active connections among multiple instances. "
My question is, from that statement above, does it mean that the connection load balancing can only be useful on a OPS with MTS instances?
and second is , does it make sense (or can it be done) to implement it on single instance of MTS?
TIA,
AndiHi Andi,
CLB is only used in cluster configuration! In single node instance there is no advantage for ovbious reason of putting one more layer.
you are right...use only with OPS and preferably with MTS.
Best,
G -
Hi there, is it possible to enable load balancing for a particular group of APs and disabled for the rest. Perhaps AP groups. Running 8500 WLC with 3600 series APs. It will enhance the service concurrent user capacities for areas with a high device count.
Sent from Cisco Technical Support iPhone AppNope and I wouldn't recommend that feature. It cause soooooo many client issues when you around 12 clients associating to a given AP. If you have high density then as long as you are running v7.2, you have RF Profiles. These profiles are defined per AP Group if you want. On the RF Policies I would tweak the data rates depending on how the coverage is when looking at a post site survey. Knowing the power and the coverage pattern allows one to disable rates, set various rates as support and or mandatory. This is how you can reduce the cell size and have better client balancing that to enable client load balancing. Also tweaking the RRM is required too.
Sent from Cisco Technical Support iPhone App -
Cisco 1921 Dual ADSL Load Balancing/Failover?
Hello,
We have purchased a Cisco 1921 with twin ADSL after advice from a Cisco sales rep. However I am having trouble working out the load balancing/fail over config for the device.
I would like traffic to balance over both ADSL lines and if one goes down not to interrupt connectivity.
I had a look at ppp multilink but I am unsure our ISP (BT) support this?
This is my current config which I think only one ADSL line is being used. Some input would be appreciated
Robbie
! Last configuration change at 13:18:34 UTC Tue Mar 29 2011
version 15.0
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname xxxxxx
boot-start-marker
boot-end-marker
no logging buffered
enable secret 5 xxxxx
enable password xxxx
no aaa new-model
no ipv6 cef
ip source-route
ip cef
ip name-server 194.74.65.68
ip name-server 194.72.0.114
multilink bundle-name authenticated
crypto pki trustpoint TP-self-signed-xxxxxx
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-xxxxx0
revocation-check none
rsakeypair TP-self-signed-xxxxx!
crypto pki certificate chain TP-self-signed-xxxxxx
certificate self-signed 02 nvram:IOS-Self-Sig#4.cer
license udi pid CISCO1921/K9 xxxxx
username admin privilege 15 secret 5 xxxxxxxxxx/
interface GigabitEthernet0/0
description lan$ETH-LAN$
ip address 10.0.8.1 255.255.248.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
interface GigabitEthernet0/1
no ip address
shutdown
duplex auto
speed auto
interface ATM0/0/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
no atm ilmi-keepalive
dsl operating-mode adsl2
interface ATM0/0/0.1 point-to-point
description $ES_WAN$$FW_OUTSIDE$
ip flow ingress
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
interface ATM0/1/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
no atm ilmi-keepalive
dsl operating-mode adsl2
interface ATM0/1/0.1 point-to-point
description $ES_WAN$$FW_OUTSIDE$
ip flow ingress
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
interface Dialer0
mtu 1483
ip address negotiated
ip access-group spalding in
ip access-group spalding out
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxx
ppp chap password 0 xxxxx
ppp multilink
ppp multilink links minimum 2
ppp multilink fragment disable
ppp timeout multilink link add 2
no cdp enable
interface Dialer1
mtu 1483
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxx
ppp chap password 0 xxxxx
ppp link reorders
ppp multilink
ppp multilink links minimum 2
ppp multilink fragment disable
ppp timeout multilink link add 2
no cdp enable
ip forward-protocol nd
no ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 1 interface Dialer0 overload
ip nat inside source static tcp 10.0.15.201 3389 interface Dialer0 3389
ip nat outside source static tcp 195.194.75.218 3389 10.0.15.200 3389 extendable
ip route 0.0.0.0 0.0.0.0 Dialer0
access-list 1 remark INSIDE_IF=GigabitEthernet0/0
access-list 1 permit 10.0.0.0 0.254.255.255
dialer-list 1 protocol ip permit
control-plane
line con 0
line aux 0
line vty 0 4
privilege level 15
login local
transport input telnet ssh
line vty 5 15
privilege level 15
login local
transport input telnet ssh
scheduler allocate 20000 1000
endHi,
Can anyone help me with this config? not very reliable.
Building configuration...
Current configuration : 17349 bytes
! Last configuration change at 06:08:06 UTC Sun Apr 5 2015 by Shawn
version 15.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
hostname Router
boot-start-marker
boot system flash0:c2900-universalk9-mz.SPA.154-3.M2.bin
boot-end-marker
security authentication failure rate 3 log
security passwords min-length 6
logging buffered 51200
logging console critical
enable secret 5 $1$sNeA$GB6.SMrcsxPf51tK2Eo9Z.
aaa new-model
aaa authentication login local_authen local
aaa authorization exec local_author local
aaa session-id common
no ip source-route
ip port-map user-protocol--8 port udp 3392
ip port-map user-protocol--9 port tcp 3397
ip port-map user-protocol--2 port udp 3391
ip port-map user-protocol--3 port tcp 14000
ip port-map user-protocol--1 port tcp 3391
ip port-map user-protocol--6 port udp 3394
ip port-map user-protocol--7 port tcp 3392
ip port-map user-protocol--4 port udp 14100
ip port-map user-protocol--5 port tcp 3394
ip port-map user-protocol--10 port udp 3397
ip dhcp excluded-address 192.168.1.1 192.168.1.49
ip dhcp excluded-address 192.168.10.1 192.168.10.49
ip dhcp pool DHCP_POOL1
import all
network 192.168.1.0 255.255.255.0
dns-server 139.130.4.4 203.50.2.71
default-router 192.168.1.1
lease infinite
ip dhcp pool ccp-pool1
import all
network 192.168.10.0 255.255.255.0
dns-server 139.130.4.4 203.50.2.71
default-router 192.168.10.1
lease infinite
no ip bootp server
ip host SHAWN-PC 192.168.1.10
ip host DIAG 192.168.1.5
ip host MSERV 192.168.1.13
ip name-server 139.130.4.4
ip name-server 203.50.2.71
ip cef
ip cef load-sharing algorithm include-ports source destination
no ipv6 cef
multilink bundle-name authenticated
cts logging verbose
crypto pki trustpoint TP-self-signed-1982477479
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1982477479
revocation-check none
rsakeypair TP-self-signed-1982477479
license udi pid
license boot module c2900 technology-package securityk9
license boot module c2900 technology-package datak9
redundancy
controller VDSL 0/0/0
operating mode adsl2+
controller VDSL 0/1/0
operating mode adsl2+
no cdp run
track timer interface 5
track 1 interface Dialer0 ip routing
delay down 15 up 10
track 2 interface Dialer1 ip routing
delay down 15 up 10
ip tcp synwait-time 10
ip ssh time-out 60
ip ssh authentication-retries 2
class-map type inspect match-all sdm-nat-user-protocol--7-1
match access-group 104
match protocol user-protocol--7
match access-group 102
class-map type inspect match-all sdm-nat-user-protocol--4-2
match access-group 101
match protocol user-protocol--4
class-map type inspect match-all sdm-nat-user-protocol--6-1
match access-group 103
match protocol user-protocol--6
class-map type inspect match-all sdm-nat-user-protocol--5-1
match access-group 103
match protocol user-protocol--5
class-map type inspect match-all sdm-nat-user-protocol--4-1
match access-group 102
match protocol user-protocol--4
class-map type inspect match-all sdm-nat-user-protocol--7-2
match access-group 101
match protocol user-protocol--7
class-map type inspect match-all sdm-nat-user-protocol--3-1
match access-group 102
match protocol user-protocol--3
class-map type inspect match-all sdm-nat-user-protocol--2-1
match access-group 101
match protocol user-protocol--2
class-map type inspect match-all sdm-nat-user-protocol--1-2
match access-group 102
match protocol user-protocol--1
class-map type inspect match-all sdm-nat-user-protocol--1-1
match access-group 101
match protocol user-protocol--1
class-map type inspect match-all sdm-nat-user-protocol--2-2
match access-group 102
match protocol user-protocol--2
class-map type inspect match-all sdm-nat-user-protocol--3-2
match access-group 101
match protocol user-protocol--3
class-map type inspect match-all sdm-nat-user-protocol--8-2
match access-group 101
match protocol user-protocol--8
class-map type inspect match-all sdm-nat-user-protocol--9-2
match access-group 104
match protocol user-protocol--9
class-map type inspect match-any ccp-skinny-inspect
match protocol skinny
class-map type inspect match-all sdm-nat-user-protocol--9-1
match access-group 101
match protocol user-protocol--9
match access-group 104
class-map type inspect match-all sdm-nat-user-protocol--8-1
match access-group 104
match protocol user-protocol--8
match access-group 102
class-map type inspect match-any ccp-h323nxg-inspect
match protocol h323-nxg
class-map type inspect match-any ccp-cls-icmp-access
match protocol icmp
match protocol tcp
match protocol udp
class-map type inspect match-all sdm-nat-user-protocol--10-2
match access-group 104
match protocol user-protocol--10
class-map type inspect match-all sdm-nat-user-protocol--10-1
match access-group 101
match protocol user-protocol--10
match access-group 104
class-map type inspect match-any ccp-h225ras-inspect
match protocol h225ras
class-map type inspect match-any ccp-h323annexe-inspect
match protocol h323-annexe
class-map type inspect match-any ccp-cls-insp-traffic
match protocol pptp
match protocol dns
match protocol ftp
match protocol https
match protocol icmp
match protocol imap
match protocol pop3
match protocol netshow
match protocol shell
match protocol realmedia
match protocol rtsp
match protocol smtp
match protocol sql-net
match protocol streamworks
match protocol tftp
match protocol vdolive
match protocol tcp
match protocol udp
class-map type inspect match-all SDM_GRE
match access-group name SDM_GRE
class-map type inspect match-any ccp-h323-inspect
match protocol h323
class-map type inspect match-all ccp-invalid-src
match access-group 100
class-map type inspect match-any ccp-sip-inspect
match protocol sip
class-map type inspect match-all ccp-protocol-http
match protocol http
class-map type inspect match-any CCP_PPTP
match class-map SDM_GRE
class-map type inspect match-all ccp-insp-traffic
match class-map ccp-cls-insp-traffic
class-map type inspect match-all ccp-icmp-access
match class-map ccp-cls-icmp-access
policy-map type inspect ccp-inspect
class type inspect ccp-invalid-src
drop log
class type inspect ccp-protocol-http
inspect
class type inspect ccp-insp-traffic
inspect
class type inspect ccp-sip-inspect
inspect
class type inspect ccp-h323-inspect
inspect
class type inspect ccp-h323annexe-inspect
inspect
class type inspect ccp-h225ras-inspect
inspect
class type inspect ccp-h323nxg-inspect
inspect
class type inspect ccp-skinny-inspect
inspect
class class-default
drop
policy-map type inspect sdm-pol-NATOutsideToInside-1
class type inspect sdm-nat-user-protocol--1-1
inspect
class type inspect sdm-nat-user-protocol--2-1
inspect
class type inspect sdm-nat-user-protocol--3-1
inspect
class type inspect sdm-nat-user-protocol--4-1
inspect
class type inspect sdm-nat-user-protocol--5-1
inspect
class type inspect sdm-nat-user-protocol--6-1
inspect
class type inspect sdm-nat-user-protocol--7-1
inspect
class type inspect sdm-nat-user-protocol--8-1
inspect
class type inspect sdm-nat-user-protocol--9-1
inspect
class type inspect sdm-nat-user-protocol--10-1
inspect
class type inspect CCP_PPTP
pass
class type inspect sdm-nat-user-protocol--7-2
inspect
class type inspect sdm-nat-user-protocol--8-2
inspect
class type inspect sdm-nat-user-protocol--1-2
inspect
class type inspect sdm-nat-user-protocol--2-2
inspect
class type inspect sdm-nat-user-protocol--9-2
inspect
class type inspect sdm-nat-user-protocol--10-2
inspect
class type inspect sdm-nat-user-protocol--3-2
inspect
class type inspect sdm-nat-user-protocol--4-2
inspect
class class-default
drop log
policy-map type inspect ccp-permit
class class-default
drop
policy-map type inspect ccp-permit-icmpreply
class type inspect ccp-icmp-access
inspect
class class-default
pass
zone security in-zone
zone security out-zone
zone-pair security ccp-zp-self-out source self destination out-zone
service-policy type inspect ccp-permit-icmpreply
zone-pair security ccp-zp-in-out source in-zone destination out-zone
service-policy type inspect ccp-inspect
zone-pair security ccp-zp-out-self source out-zone destination self
service-policy type inspect ccp-permit
zone-pair security sdm-zp-NATOutsideToInside-1 source out-zone destination in-zone
service-policy type inspect sdm-pol-NATOutsideToInside-1
interface Null0
no ip unreachables
interface Embedded-Service-Engine0/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
interface GigabitEthernet0/0
description $ETH-LAN$
ip address 192.168.10.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
duplex auto
speed auto
no mop enabled
interface GigabitEthernet0/1
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
duplex auto
speed auto
no mop enabled
interface ATM0/0/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
no atm ilmi-keepalive
interface ATM0/0/0.1 point-to-point
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
pvc 8/35
encapsulation aal5mux ppp dialer
dialer pool-member 1
interface ATM0/0/0.2 point-to-point
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
interface Ethernet0/0/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
no mop enabled
interface ATM0/1/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
no atm ilmi-keepalive
interface ATM0/1/0.1 point-to-point
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
pvc 8/35
encapsulation aal5mux ppp dialer
dialer pool-member 2
interface Ethernet0/1/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
no mop enabled
interface GigabitEthernet0/3/0
no ip address
interface GigabitEthernet0/3/1
no ip address
interface GigabitEthernet0/3/2
no ip address
interface GigabitEthernet0/3/3
no ip address
interface GigabitEthernet0/3/4
no ip address
interface GigabitEthernet0/3/5
no ip address
interface GigabitEthernet0/3/6
no ip address
interface GigabitEthernet0/3/7
no ip address
interface Vlan1
description $FW_INSIDE$
ip address 192.168.1.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nbar protocol-discovery
ip flow ingress
ip nat inside
ip virtual-reassembly in
zone-member security in-zone
interface Dialer0
description $FW_OUTSIDE$
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip nbar protocol-discovery
ip flow ingress
ip nat outside
ip virtual-reassembly in
zone-member security out-zone
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname [email protected]
ppp chap password 7 1444405858557A
ppp pap sent-username [email protected] password 7 135645415F5D54
ppp multilink
interface Dialer1
description $FW_OUTSIDE$
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip nbar protocol-discovery
ip flow ingress
ip nat outside
ip virtual-reassembly in
zone-member security out-zone
encapsulation ppp
dialer pool 2
dialer-group 2
ppp authentication chap pap callin
ppp chap hostname [email protected]
ppp chap password 7 01475E540E5D55
ppp pap sent-username [email protected] password 7 055F5E5F741A1D
ppp multilink
router eigrp as#
router eigrp 10
network 192.168.1.1 0.0.0.0
router rip
version 2
network 192.168.1.0
no auto-summary
ip forward-protocol nd
ip http server
ip http access-class 3
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip dns server
ip nat inside source static tcp 192.168.1.10 3392 interface Dialer1 3392
ip nat inside source static udp 192.168.1.10 3392 interface Dialer1 3392
ip nat inside source static tcp 192.168.1.35 3391 interface Dialer0 3391
ip nat inside source static udp 192.168.1.35 3391 interface Dialer0 3391
ip nat inside source static tcp 192.168.1.5 3394 interface Dialer0 3394
ip nat inside source static udp 192.168.1.5 3394 interface Dialer0 3394
ip nat inside source static tcp 192.168.1.17 3397 interface Dialer0 3397
ip nat inside source static udp 192.168.1.17 3397 interface Dialer0 3397
ip nat inside source static tcp 192.168.1.10 14000 interface Dialer0 14000
ip nat inside source static udp 192.168.1.10 14100 interface Dialer0 14100
ip nat inside source route-map ADSL0 interface Dialer0 overload
ip nat inside source route-map ADSL1 interface Dialer1 overload
ip route 0.0.0.0 0.0.0.0 Dialer0 track 1
ip route 0.0.0.0 0.0.0.0 Dialer1 track 2
ip access-list extended NAT
remark CCP_ACL Category=18
permit ip 192.0.0.0 0.255.255.255 any
ip access-list extended SDM_GRE
remark CCP_ACL Category=1
permit gre any any
remark CCP_ACL Category=1
ip access-list extended STATIC-NAT-SERVICES
permit ip host 192.168.1.35 any
permit ip host 192.168.1.5 any
permit ip host 192.168.1.10 any
permit ip host 192.168.1.17 any
dialer-list 1 protocol ip permit
dialer-list 2 protocol ip permit
route-map ADSL0 permit 10
match ip address NAT
match interface Dialer0
route-map ADSL1 permit 10
match ip address NAT
match interface Dialer1
access-list 1 remark INSIDE_IF=Vlan1
access-list 1 remark CCP_ACL Category=2
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 2 remark HTTP Access-class list
access-list 2 remark CCP_ACL Category=1
access-list 2 permit 192.168.1.0 0.0.0.255
access-list 2 deny any
access-list 2 remark HTTP Access-class list
access-list 2 remark CCP_ACL Category=1
access-list 3 remark HTTP Access-class list
access-list 3 remark CCP_ACL Category=1
access-list 3 permit 192.168.1.0 0.0.0.255
access-list 3 deny any
access-list 10 remark INSIDE_IF=NAT
access-list 10 remark CCP_ACL Category=2
access-list 10 permit 192.168.1.0 0.0.0.255
access-list 100 remark CCP_ACL Category=128
access-list 100 permit ip host 255.255.255.255 any
access-list 100 permit ip 127.0.0.0 0.255.255.255 any
access-list 100 permit ip 139.130.227.0 0.0.0.255 any
access-list 100 permit ip 203.45.106.0 0.0.0.255 any
access-list 101 remark CCP_ACL Category=0
access-list 101 permit ip any host 192.168.1.10
access-list 101 remark CCP_ACL Category=0
access-list 101 permit ip any host 192.168.1.35
access-list 101 permit tcp any any eq www
access-list 102 remark CCP_ACL Category=0
access-list 102 permit ip any host 192.168.1.35
access-list 102 remark CCP_ACL Category=0
access-list 102 permit ip any host 192.168.1.10
access-list 103 remark CCP_ACL Category=0
access-list 103 permit ip any host 192.168.1.5
access-list 104 remark CCP_ACL Category=0
access-list 104 permit ip any host 192.168.1.17
control-plane
banner login ^CCE-Rescue Systems^C
line con 0
login authentication local_authen
transport output telnet
line aux 0
login authentication local_authen
transport output telnet
line 2
no activation-character
no exec
transport preferred none
transport output lat pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
authorization exec local_author
login authentication local_authen
transport input telnet ssh
line vty 5 15
authorization exec local_author
login authentication local_authen
transport input telnet ssh
scheduler allocate 20000 1000
end
Thanks
Shawn -
Hi,
i have configured to load balancing the http traffic to 2 servers, servers have the ip address 10.10.50.100 and 10.10.50.101 resp and the vip is 10.10.46.10
iam not able to access the http through the vip, can some one help on this
am i required to the nating, below is the connectivity
User -->SW->ASA->CSS->SW->server1 & server2
iam not able to access the server through vip
Please help
Thanks
Ravi
RaviWhat is the default gateway defined on Servers?
Is it CSS circuit IP or the ASA?
How is CSS conected? Are there diff vlans connected to servers and ASA? Or CSS is connected to the Switch in one arm mode?
You need to make sure that the return traffic from Servers should pass through the CSS.
Syed -
Cisco RV042 - Dual Wan Load Balancing - Secure Site (HTTPS) Trouble
PID VID :
RV042 V03
Firmware Version :
v4.0.0.07-tm (Aug 19 2010 19:19:50)
Ever since I setup my RV042 with load balancing using the Dual Wan system I have had trouble staying connected to some secure sites. After doing some searching I found that the potential issue is the IP change mid session.
"http://www.broadbandreports.com/forum/r25537589-Cisco-RV042-can-not-use-load-balancing-for-some-web-sites"
Although my interface is significantly different I was able to find the same area in my RV042 admin area however, it doesn't seem to work.
System Management
> Dual Wan
In Wan 1 & Wan 2 I have HTTPS and HTTPS Secondary all forwarded to use Wan 2 under Protocol Binding
This however has not managed to do anything at all for my network and every computer conneceted experiences the same HTTPS irregularities at some websites.
I'm sure I must be doing something wrong, but I don't know what it is.
Both incoming connections are from the same service provider although the plans are different.
Any help with this would greatly help me stop losing my mind trying to fight with my website control panel for 10 minutes to just login and get something done.
ThanksAny ideas or advice from anyone?
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