Cisco Application :: Ace20-MOD-K9 Cookie Persistency On Ace Module
Sep 5, 2012
I have an ACE20-MOD-K9 with version A2_3_6a, and i am having problems in cookie persistency. the setup contains 4 servers using round-robin algorithm and cookie persistency and that receive http traffic on port 9090. I have been receiving complains that the users are getting disconnected randomly while accessing the web application through ACE. Below is part of the config, when setting the timeout of the cookie to default or something equal to hours, the disconnection/complains gets worse.
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Nov 13, 2012
We are using an ACE engine module(ACE20-MOD-K9) provide loading balancing service for two WEB servers and configured cookie for stickness. Below is the current configuration and it seems working fine now.
The problem I was facing is before use parameter-map change the http header length to 8k the stickness doesn't really working properly. User complains that their working session constantly be kicked out and redirect them to login page. By tracing traffic from a client we found that sometime ACE fails or stop insert the configured cookie, after increase the header length ACE start getting work.
how does the header length setup effect ACE to insert a cookie? Will the cookie insert attmpt fail if the header is longer then the maximum length configured on ACE? [code]
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Jun 28, 2011
I have a ACE20 module with a performance of 4 Gbps. I want to upgrade the performance from 4 Gbps to 8 Gbps. Is correct the following SKU for the upgrade?
ACE30-UPG-08-K9=ACE10 or ACE20 to ACE30 Upgrade for 8 Gbps Throughput
And if i want to upgrade the performance to 16Gbps is correct the sku?
ACE30-UPG-16-K9=ACE10 or ACE20 to ACE30 Upgrade for 16 Gbps Throughput
I noticed that the price list of both codes is the same....
Is it right for the SKUs listed I get the new module with the performance ACE30 requested?
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Mar 28, 2012
I was trying to implement stickiness based on cookie. Server inserts a cookie and sends it to the browser. I learned from app team that this cookie is changing dynamically during the session, so stickiness based on server’s cookie doesn’t work.
Now I want to investigate into possibility of ACE to insert a cookie. My question is: ACE feature of “cookie insert”: does it add additional cookie into http header without removing server cookies or it deletes the cookie(s) that server put into http header and replaces them with its own cookie?
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May 9, 2013
How to migrate the following config from a CSM to and ACE20 module.
Currently we have a CSM configured as below:- 452 Client and 453 Server sharing the same Public vlan.
We require outbound access from groups of internal individual servers to external addresses.
CSM config
module ContentSwitchingModule 8
vlan 452 client
ip address 10.206.135.252 255.255.252.0
[Code].....
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Sep 9, 2012
Facing issue with ACE module Part#ACE20-MOD-K9 having NP failed error message and module got restarted.
Module software currently# c6ace-t1k9-mz.A2_1_6a.bin
We have studied the Support Community document and got the BUG id's information having impact on this module, BUG id's: CSCsv92321, CSCsx25981, CSCsq38638
Software version to upgrade for the ACE module having no impact on this ACE module by these BUG id's having parity error symptoms.
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Oct 27, 2011
My ACE module rebooted itself and after the reboot it lost all the config and it has been booted with factory default setting.
[code]....
I would like to know the reason for the same. Is this due to firmware bug? or with the Hardware? I am bit dissatisfied that all of my config vanished without any reason after the reboot of ACE.
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Mar 5, 2013
I have an HTTPS probe that sometime fail, sometimes does not fail.
[code]....
The probe that sometimes fails is the TEST-HTTPS. The TCP_443 probe works perfectly well.The ACE is configured in bridge mode.Is it possible to capture the PROBE traffic on the ACE side?
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Dec 3, 2012
Everytime I make a config change to one of the contexts on our ACE20, I get this message: Config Application in Progress. This command is queued to the system
If I run show download info, I get:
context : context1
Interface Download-status
--------------------------------------------------------------
187 In Progress
199 Pending
Regex download optimization status : Couldn't get status[TNRPC Timed out]
It eventually seems to complete, but it takes a very, very long time. We are running Version A2(3.5) [build 3.0(0)A2(3.5)].
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Jul 23, 2012
We have ACE 4710, It is configured with IP based stickiness and working fine for a web application server (BMC Remedy). We tried configuring cookie based stickiness for the same server. Server application is having JSESSIONID.But after configuring cookie based stickiness, there is an issue that the first page is coming for entering login credentials and after entering it the page is blank or not responding. What is the pre-requirement for configuring cookie based stickiness in ACE for BMC Remedy web application and which type of cookie based stickiness is suitable or possible?
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Jun 28, 2012
I have two CSS 11503 in my network, recently we had configured sticky with advanced-balance arrowpoint-cookie.
The sticky is functioning but we found our server's private IP in the IE cookie ARPT box.
Is there any way to hide ARPT info? Below is an example configuration of my CSS and attached screenshot is Firefox cookie info.
content 5301
add service 172.18.71.77_5301
add service 172.18.71.77_5302
[Code]......
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Sep 10, 2012
We've got ACE30s (active/standby) running A5(1.2), and a context that's front-ending one of our major applications, doing SSL termination on the client side and SSL initiation on the back side:
parameter-map type ssl FrontEndSSL-Param
rehandshake enabled
parameter-map type ssl BackendSSL-param
authentication-failure ignore
[Code]...
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Feb 1, 2012
I have a requirement to load balance OWA 2010 inbound connectivity to 2 CAS servers using a ACE 4710 with sticky sessions enabled.
The CAS servers are currently responding on 80 or 443 at this moment in time. Eventually I want to off load the SSL to the ACE 4710, its currently running on the CAS servers. I need to enable sticky sessions to keep the session to the same CAS server for each internet based connection. I also have a proxy enabled for inbound connectivity so I cannot use source IP.
Here is my configuration but it doesn’t seem to be working, i am currently testing with port 80 connections not SSL.
serverfarm host INHOUSE-EXCHANGE-OWA-vFARM
predictor response app-req-to-resp samples 4
probe 443
probe HTTP-PROBE
rserver INHOUSE-TEST-CAS01-SVR
inservice(code)
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Jan 8, 2013
We are using a ACE 4710 with A3(2.6) software release.I had to change our sticky load balancing method for HTTPS to cookie based.However while connections appear to work if I look at the show sticky database table I can not see or confirm sticky entries for the cookie based connections.Here or config snippets to show the config
sticky http-cookie ghh-www scook-ghh
cookie insert browser-expire
serverfarm ghh-www-443
class-map match-all ghh-www-443_CLASS
2 match virtual-address 172.16.1.21 tcp eq https
[code].....
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Jun 2, 2011
I have been trying to addACE20-MOD-K9 in ANM 4.2 (0) but when I try to import it times out and I get
""Failed to import ACE configuration: Device discovery failed: Connection timed out.""
I have double-checked credentialn and access rules on the module and they seem OK. I am trying to add the module with the Admin credentials and ssh/telnet access is permited.
Is this the right way or I'm missing something. Module version is A2(3.2a)
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Sep 22, 2011
ACE20 module with A2(3.3)I have tried to config a NAT-pool with two adresses, but only one is used.
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Jun 27, 2012
I want to route gre traffic through an ACE20, but it doesn't seem to work. The only thing I configured was an ACL with gre enabled, but the ACE20 seems to drop the gre packtes. The gre traffic is entering via the vlan 561 interface and should be send out via the vlan 472 interface. Source 10.94.32.212, destination 10.94.132.39. The tunnel control traffic on port tcp/1723 is working fine. In the service-policies is nothing configured for the gre traffic.
Code...
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Oct 25, 2011
Have a client with one ACE20 and now he needs a second one for redundancy.Since ACE20 is EOL, can I use an ACE30 with an ACE20 as a failover pair?
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Apr 26, 2011
I have a problem with the ACE 20 load balance
To start with following is our architectural request flow:
Load Balancer --> Webseal /(reverse proxy) --> HTTP Server --> Portal Server
We have Hardware Load Balancer Cisco ACE20. When we access our portal from Webseal server it works totally fine without any issue, but when we access the same application using ACE we face the following issues:
1) Some of the links on do not work. For eg: We have a link "subscribe" which points to [URL], whenever we click on this link, the request is directed to [URL] i.e homepage
2) URL redirection does not work We have some links which have a url forwarding or redirection for example when we open [URL] it forwards the requests to [URL] opendocument....., but this redirection fails and again the request is thrown to homepage i.e., [URL]
3) The response of the request and the overall portal when accessed via ACE is very sluggish and it takes 20 seconds for homepage to load, whereas the homepage loads in 4 secs when accessed via webseal.
Below is the ACE details.
Hardware Product Number: ACE20-MOD-K9 Card Index: 207 Hardware Rev: 2.3 Feature Bits: 0000 0002 Slot No. : 7 Type: ACE
Software loader: Version 12.2[120] system: Version A2(1.4) [build 3.0(0)A2(1.4) adbuild_11:54:12-2009/03/05_/auto/adbu-rel2/rel_a2_1_4_throttle/REL_3_0_0_A2_1_4] system image file: [LCP] disk0:c6ace-t1k9-mz.A2_1_4.bin installed license: ACE-SEC-LIC-K9
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Feb 18, 2013
I would like to know if I can migrate the config from ACE20 to ACE30 (last software) without any issue.I don't have any ACE30 to test
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Oct 26, 2011
I would like to add a vlan to a second context on a pair of redundant ACE modules. As soon as I open up that shared vlan box we will expose ourselves to mac conflicts until the shared-vlan-hostid commands can be implemented and the module reloaded. Adding the commands is not a big deal but I may not be able to schedule a reload until next week. What I would like to do is confirm the mac pools in use by each module right now. My hope is that they grabbed unique pools when they last booted and a conflict will not be a concern now.
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Jul 18, 2012
We have a pair of ACE20-MOD-K9 in Fault Tolerant mode. They are running multiple contexts and we have a problem with one particular context which is running SSL off-loading. Despite the config being identical on both (accept for the peer addresses obviously) and both having the same SSL Key and Cert files loaded on both, the configuration will not sync between them. [code] All the Crypto files are identical as I copied them from one ACE to the other.
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Mar 18, 2012
I see several code versions that seem to support on ACE30.Is A2.3.4 Or A2(3.5) that latest version for ACE20-MOD-9?Will the version 4 or 5 run on ACE20?I currently user A2(3).
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May 16, 2012
We are currently running a ACE20 with 11 contexts. Recently we have seen that one of the contexts is being 'starved' of resources, especially Concurrent Connections, Bandwidth and Throughput.
Whilst we know how to address this situation by reallocating resources from less busy contexts, I was wondering if there was a more scientific way of looking at the resources being used and calculating the best way to allocate them across the ACE other than just looking at the 'show resource usage' and 'show resource allocated' commands?
Has Cisco or any other 3rd party developed a handy tool to monitor the the ACE resources which will possibly assist with calculating the optimum resource allocations across all contexts?
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Jul 15, 2012
I have 2 Cat 6509-E switches in VSS configuration with 2 ACE modules. One in each Cat6k.
The ACE modules are running the following:
Software
loader: Version 12.2[120]
system: Version A2(3.2a) [build 3.0(0)A2(3.2a)]
We have only 2 contexts, the Admin and another one that we redirect traffic to WAAS equipment. The ANM soft running is only used for stats about the ACEs. It is version 5.2.
Since last week, the standby ACE module reboots on it own. It rebooted between 10 and 15 times until we had to leave the module PwrDown due to the constant reboots.
I tried to find any bug in the soft but I could not find anything related to that.
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Jan 27, 2012
I tried to create a L7 class-map for blocking the clients with ciphes strength less than 128 in ACE20 running with Software version A2(2.3).But there were no command inside the L7 class-map called cipher for matching the cipher strength 128. Command Tried to issue was host1/Admin(config-cmap-http-lb)#match cipher less-than 128 So I want to know whether this is possible on ACE 20 and SW version A2(2.3). Kindly suggest a way to acheive this.
I have seen some other configuration using the parameter-match, But I dont know the Cipher Names which to allow. I want to drop all the connections with less than 128 bits cipher strength.
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Jul 14, 2011
is there a way to reset/clear a particular context's configuration?
I see there is a 'wri erase' within a context, but no reload/reset - neither from the context itself nor from the Admin... puzzling...
I dont want to reload an entire blade just to clear one of the context's configs.
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Jan 18, 2012
We are using an ACE20 module running version A2(3.2).I have a question regarding IP stickyness and the timeout parameter.I found this in the "Server load balancing configuration guide" (in a section entitled: "Configuring a Timeout for IP Address Stickiness"):
"The sticky timeout specifies the period of time that the ACE keeps (if possible) the IP address sticky information for a client connection in the sticky table after the latest client connection terminates. The ACE resets the sticky timer for a specific sticky-table entry each time that the module opens a new connection or receives a new HTTP GET on an existing connection that matches that entry."
The parts in bold seem to point to the fact that the timeout is an "inactivity timeout" as the counter is reset on every new connection.The next section in the documentation is entitled: "Enabling an IP Address Sticky Timeout to Override Active Connections" and says:
"By default, the ACE ages out a sticky table entry when the timeout for that entry expires and no active connections matching that entry exist. To specify that the ACE time out IP address sticky table entries even if active connections exist after the sticky timer expires, use the timeout activeconns command."
This seems to contradict the previous statement.So my question is: is the IP stickyness timeout an "inactivity timeout" or not?
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Nov 6, 2012
I've run into an interesting problem trying to migrate my production config from my redundant ACE20's (A2(3.4)) to the new ACE30's (Tried (A4(1.0) and A5(1.0)). Everything on the ACE30 is working fine with a base config, but when the restore all is run from the ACE20 backup (backup all), the SSL files are not restored and return errors. All the contexts are restored correctly, along with the startup-config, but the running config fails due to no SSL.
All the crypto certs/keys are exportable and are present in the backup .tgz file.
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May 13, 2013
I have a physical server running behind the ACE module ACE20-MOD-K9. The Server has several virtual machines. One of that virtual machines, has a WEB SERVER running virtual https servers. For example, server with IP address 10.0.0.20/24, has serveral virtual HTTPs servers as of urll... So, if you nslookup the servers, they all respond with 10.0.0.20 IP address. So if I do url...goes to 10.0.0.20 and read the VIRTUAL SERVER config and replies back to the request.Now, I am trying to verify that the TCP connection (443) and the HTTPS server itself is up and running but only for the url... site and not for the other 2.The problem that I am facing is tha the HTTPS probe fails randomly. The TCP probe works fine.
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Oct 6, 2011
During high throughput times (nightly, when backup runs) we see packet drops on the network. We think it's the ACE module that drops. We use 2 ACE 20-MOD-K9 with base licenses in a FT configuration in Layer2 Mode.Now I found an interesting statistic on the ACE: [code] How to reset this counter?
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Sep 1, 2011
I recently installed the license ACE-SSL-05K-K9 on ACE10 with multicontext solution.The license provides 5000 Maximum number of SSL transactions per second (TPS).The customer would like to track this to find out the correct size and in the case of services https upgrade licenses.Can I do it so through particular output or it's necessary monitoring with snmp service? In the second case, can you tell me the oid string to use?
In case the module should receive a higher number of connections to that provided by the license, what's the issue for new https connections?
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Feb 16, 2010
We are using a Ace module running version 3.0?We do have a service which can now be reached by a url like https://www.xxx.com/yyy/ < notice the last /This is running via the Ace which terminates SSL and so on..
So now our client wants an url like https://www.yyy.com . The backend realservers and place of virtual dirs on IIS stays the same.
So now /yyy/ needs to be added to the backend realserver request, so the correct virtual dir is used. Therfore I need to add this Uri towards the realserver.
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