Software upgrade on box-to-box redundant CSS's

I am planning a software upgrade from version 5.00 Build 63 to version 6.1 on a pair of CSS 11150 devices running box-to-box redundancy.
Should both devices be upgraded at the same time, or can I split them and upgrade on consecutive weekends ?

if it was 2 different 5.0 release, I would say ok.
But a 5.0 and a 6.1 release, it could be ok but that's not 100% sure.
Sorry, that's all I can say.
Maybe you could put both images on the CSS, boot the CSS out of 6.1 and configure them to reboot with 5.0 in case something wrong happens.
Gilles.

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Why bother with the software upgrade BT ?

I've still got the old silver BTVision box, I've had it since launch which is quite a few years I can tell you !!. At the start the software was very dodgy, even watching TV had its problems. After some very overdue software upgrades the box now runs as sweet as a nut.
My question is, with the new HD Youview box on the horizon (which I will be getting day one), why bother upsetting the applecart ??. The old boxes are running fine so why introduce a new slow, buggy UI to a platform that is on its way out ?. What is BT trying to achieve here apart from forcing an upgrade on people that apparently doesnt provide any extra features and wipes all of your recordings ?.

minusdot wrote:
StewM wrote:
The new software is still in testing mode at this time. Hopefully by the time it is fully launched the bugs will be fixed and the features added back.
If it's in use by non-beta testing customers, as it appears to be, then it is not in "testing mode". Can I stick with the old look please!
And yet you want multi-room. Which one cannot have on the WinCE platform as it has no flexibility. But the new platform will, eventually.
Rank - Mostly Harmless.

CSS Box-to-Box software upgrade

I'm getting ready to upgrade two CSS's in box-to-box redundancy mode.
The upgrade is simple enough, but what are the best practices for two boxes in box-to-box?
I suppose I can copy the software up to the master box. Then force the standby box to be master and copy up the software to the standby.
Perform the upgrade/reboot on the standby. Then once the standby is again operational, do the master.
Seems cumbersome. Any suggestions?

I would suggest upgrading and rebooting the secondary CSS, then do the primary. Â However, I would suggest you verify the APP session status between the 2 CSS's BEFORE upgrading and rebooting the primary. Â If you can ensure APP session communication between the load balancers you should be okay to perform the upgrade on the primary device. Â In my opinion this is the better if the two options you have outlined.
- JasonÂ

CSS Box-box redundancy image upgrade

Hi
Please, what is the best pratice to upgrade CSS image without losing service to serverfarm.(image are stored on flash).
The css are in redundancy mode.
(ip redundancy & redundancy-phy are configured)
(1) If ip redundancy master is configure temporarily on the active CSS,then after upgrading the image on the Backup CSS(to a different image),
can redundancy force-master be use on the upgraded CSS to force is to be the master.
So that upgrade can be carried on the other CSS.
(2) If the image have been ftp-ed to the two css,
will changing the primary boot on one of the css automatically recognise the correct image in order that the CSS will be in redundancy mode.
or any method that will prevent both CSS becoming master due to different image .
Thanks

you will need console access to both CSS to change the primary boot file manually on both of them.
Then, reboot the backup CSS.
Once it is up, configure 'ip redundancy master' so the CSS will become the master.
Once master, reboot the other CSS.
However, there will be traffic lost as the backup CSS is in a down state. The CSS will have to bring up interfaces and start keepalives.
Also, all active connections will be lost because this solution is not stateful.
Finally, I would like to say that I always recommend vip/interface redundancy [unless you are doing fwlb] as with this solution the backup CSS is *alive* [no need to bring up interfaces and start keepalives], it has faster failover, we have better control on redundancy parameters, and it is stateful if combine with ASR.
Regards,
Gilles.

CSS Box to Box - Redundancy

We have two CSS running in box to box redundancy in two-arm (router mode) on code 8.10.40. Master is running with ip redundancy master (causing it to always be master if it is up and running).
We had a need to reload a previous configuration. To do this I copied the configuration to startup-config under running boot-file. I then ran command copy start run (on the master). After doing so, we lost all VIPs, although servers on second arm of CSS were accesible as well as the interface on the same network as the VIPs.
There is a 6509 switch between our CSS and the Firewall (firewall's are running in same mode - box to box). Firewall team saw traffic destined for the VIPs leave their interface, but we never saw it hit the CSS. I think that we had an ARP issue, but nobody can attest to this 100%. We had to reboot both CSS's to get VIPs to respond properly.
What would be the normal expectations in this scenario?
What is best practice to reload a configuration?

the copy start run does not erase the running config. So, it tries to add whatever config you had in startup on top of the running config.
Personally I would have simply done a reload once the config was in startup.
Gilles.

How to implement long-distance box-box Redundant for CSS product?

I want to config box-box redundancy for CSS,but It's about 1200+ meters from one to the other,
so it couldn't implement using crossover UTP cable.
(DOes it work well when link with Fiber optical transceiver between the two Content Switches ?)
or
Would you pls. give your solution for this ?
Thanks,
thomas

As far as my knowledge goes I think cross over cable is the only option.When the CSS are too far apart, Box-to-Box
redundancy cannot be used.A gige-cable cannot be used for failover.
Have a look at this:
http://www.cisco.com/univercd/cc/td/doc/product/webscale/css/advcfggd/redndncy.htm#xtocid145103

Is the software upgrade img 1.9 coming to motorola boxes

Is the software upgrade img 1.9 coming to motorola boxes or just cisco boxes, and when is it coming to SE Pa?

All boxes (Moto and Cisco) will be upgraded to 1.9a. When is another story. SE PA (VHO8 was supposed to get it last week, but something stopped the push. Any dates would be a guess.
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

CSS box to box redundancy redundant link

Hello,
Does CSS 15001 with firmware version sg0820001 (08.20.0.01) require gigabit link for box to box redundancy's redundant link?
Thank's
Raymond.

The crossover cable used for the redundant link can be connected to two Gigabit Ethernet or two Fast Ethernet ports.
See:
http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/configuration/redundancy/guide/Redndncy.html#wp1060803

CSS software upgrade failed

Hi everyone,
My customer had a problem during upgrading CSS software from 7.50.303 to 8.10.602.
He executed upgrade but it was failed with the following message.
==========
CSS# upgrade "sg0810602.adi-gz"
CSS#
Current Version: sg0750303 OFFICIAL
*** You must remove an installed version to upgrade. ***
Cannot delete enough installed versions to allow the upgrade.
One cannot delete an image that is the currently running image,
or an image that is selected as the primary or secondary boot
image. You must de-select the primary or secondary image
in order to continue with this upgrade.
==========
There is no another information on the CSS but I have just the above message.
Have you experienced similar symptom? or Do you have any information why this is happened and/or how can resolve this problem?
Your information would be appreciated.
Best regards,
Shinichi

Hi Shinichi,
Can you please share the commands you have run for upgrading the CSS software.
Kindly tell how many versions are already installed on you CSS.
Use the version command to see the currently running software version.
To
a. List the ADIs on the CSS.
(config)# show installed-software
sg0720104
sg0730003
b. Access boot mode:
(config)# boot
(config-boot)#
c. Use the remove command to remove the ADI.
(config-boot)# remove sg0720104
If you are having two software version installed.
Kindly send me the output of the
(config)# show installed-software
Before you can upgrade your CSS, make sure you have enough space on the box to
complete the upgrade.
Because a hard-disk-based CSS can contain a maximum of four ArrowPoint Distribution
Images (ADIs). A Flash disk-based CSS (CSS 11150 or CSS 11800) can contain a
maximum of two ADIs. If the limit has been reached, you must remove one ADI
version before you can add a new version.
====================================
Before you can upgrade your CSS, you must copy the new CSS software to your FTP server and configure an FTP server record so the CSS recognizes the server. Use the show installed-software version-limit command to display the maximum number of installed versions allowed on your hard disk or Flash disk.
When upgrading the CSS software, you can use the upgrade script or manually enter CLI commands. The upgrade script allows you to upgrade the CSS either automatically or interactively by responding to script prompts.
Either way, the tasks that the script performs include:
•Checking to see how many installed software versions are installed on the CSS, and if the CSS contains the maximum number of installed software versions, then deleting an older software version.
•Archiving the running configuration to the startup configuration.
•Copying the new ADI to the CSS boot-image directory.
•Unpacking the new ADI.
•Copying the scripts and user profiles from the older CSS software to the new software. The copied scripts do not include Cisco-supplied scripts except default-profile.
•Setting the primary boot file to the new ADI.
•Rebooting the CSS.
We recommend that you use the upgrade script because the upgrade script ensures that the existing scripts and user profiles are copied to the new software.
When manually upgrading the CSS software, you must enter CLI commands to perform the same tasks that the upgrade script would perform.
You can run the upgrade script to perform the software upgrade without having to enter any information. The script automatically:
•Checks to see how many installed software versions are installed on the CSS. If the CSS contains the maximum number of installed software versions, the script deletes an older version.
Note The script does not prompt you to delete a version of software that you configured as the primary or secondary boot file. On a disk-based system, you may need to quit and then deselect the primary or secondary boot file before continuing with the upgrade.
•Archives the running configuration to the startup configuration.
•Copies the new ADI to the CSS boot-image directory.
•Unpacks the new ADI.
•Copies the scripts and user profiles from the older CSS software to the new software. The copied scripts do not include Cisco-supplied scripts except default-profile.
•Sets the primary boot file to the new ADI.
•Reboots the CSS.
Kindly Use the following URL for your reading if you have not gone through this:
http://ciscosystems.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20/configuration/administration/guide/Upgrade.html
Please revert back with the answers of my question and I believe we will be able to resolve your problem.
Best regards,
Sachin

GE redundancy through fibre for box-to-box redundancy

According to Cisco documentation, you need to use crossover cable to connect master and redundant CSS for box-to-box redundancy. May I know whether the fibre can be used instead of crossover cable? And how about the ISC link for ASR? Can I use fibre also?

Gilles,
CSS Redundancy Configuration Guide (Software Version 7.30) said that:
Use the redundancy-l4-stateless command in content or group configuration mode to enable stateless redundancy failover in a box-to-box redundancy or a VIP and virtual interface redundancy configuration. Stateless redundancy failover allows critical TCP/IP traffic to continue in case of a failure at the load-balancing CSS by allowing the backup CSS to set up a mid-stream TCP flow. This feature is disabled by default.
The default behavior of a CSS is to set up load-balanced TCP flows only when it receives a TCP frame that begins with SYN. When stateless redundancy failover is enabled and a failover occurs, the backup CSS establishes a mid-stream flow for any existing TCP sessions. The CSS still exhibits the default behavior for all new flows. To restore the default behavior of the CSS for all flows after issuing the redundancy-l4-stateless command, use the no redundancy-l4-stateless command.
Does this mean that client does not need to reestablish connection to server after failover?
Thanks
Deng Qi

Box-to-box redundancy over DWDM

Is possible to use box-to-box redundancy, when the connectivity between CSSs (for APP) is provided by using DWDM technology??
CSS - ONS - ONS - CSS.
Thank you.

officially not supported but it works most of the time.
Gilles.

Quirkiness with box to box redundancy.

I have several sets of CSS's running in box to box redundancy running version 5.03 Build 15.
My question is what causes one CSS to out of the blue go backup and the other become master? I've had this happen on just about all the ones I have configured for box to box. This one pair has been running for a little over a year without a problem and today failed over to the other CSS twice. Nothing shows up in the logs except the "transition to redundancy backup / master." Another pair did this several times about a year ago, after having ran for quite some time. I rebooted both units and they were fine for a period of about 6 months. I find this very strange and am curious if anyone else has had these same problems. I have updated the code on one set, the problem reappered about 7 months later.
I'm now deploying all new CSS installs using interface/vip redundancy.
Thanks!

the version you are using is a potential explanation.
I would really not recommend it.
You should either go to 5.0 or 6.10
Regarding the problem you got, it could also be related to how you connected the CSS together.
Do you have a straight connection between the 2 ? or do you use a switch ?
If a switch, something could have happened there.
Gilles.

Box-to-box redundancy

I´m a little bit confused about the config guide ragarding box-to-box redundancy.
customer will use 2 Css 11503 and wants to configure box-to-box redundancy.
There is one advice that it is essary to link the two switches via a FE-Port. but i also fond an advice that a GE-Port can be used.
What is right? It´s depending on sw-version ?
Thank you for your help
regards
Dietrich Schleyer

Dietrich,
initially it was necessary for this link to be FE.
With the most recent versions this link can also be a GE link.
Since this link is only being used for some kind of keepalive between the 2 CSS, I don't see the need to use GigE.
Also, unless your customer is doing firewall loadbalancing, you should really convince him to use vip/interface redundancy and not box-to-box redundancy.
You get faster failover time with vip/interface red., you can turn on statefull failover [not possible with box-to-box] and it is easier to troubleshoot.
Regards,
Gilles.
Thanks for rating this answer.

Just purchased a Macbook Pro 15" 2 no software in the box.

Just purchased a Macbook Pro 15" 2.7ghz and there was no software in the box. What if I want to reinstall the OS, what do I do if I want to totally erase and reintall?

OS X: About OS X Recovery

I want to use Native System Center Software Center Notification box or Windows Update dialogue box to force a reboot.

I'm installing software that will require a reboot. I would like to use the Windows Update dialogue box to prompt users to reboot.
Or a reboot dialogue box that mimics System Center Software Center Notification box
Does anyone know of a way to use the System Center Client notification or the Windows update box to force a reboot. This is familiar to my users and will not freak them out

The Coretech Shutdown Tool is free, excellent and would satisfy your requirement.
http://blog.coretech.dk/kea/new-version-of-the-coretech-shutdown-tool/
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Software upgrade on box-to-box redundant CSS's

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