Minimum config for CSS for box-to-box redundancy

Answered Question

we have two CSS units CSS1 and CSS2. both have config wiped out clean. I have x-over cable patched between two units on interface "e1" on vlan 1 (VRRP vlan)


CSS1 will have 10.0.0.2/24 on circuit vlan1; CSS2 will have 10.0.0.1/24 on circuit vlan1. CSS1 should be Master with higher IP.


I want to get box-to-box redundancy operational before I add any content/service, then any new config is only needed on master unit then gets pushed to backup unit.

So what config will be added on both CSS to get basic redundancy up and working?


CSS1:


ip redundancy


interface e1

bridge vlan 1


circuit vlan1

ip add 10.0.0.2 255.255.255.0

redundancy-protocol


app

app session 10.0.0.1


CSS2:

ip redundancy


interface e1

bridge vlan 1


circuit vlan1

ip add 10.0.0.1 255.255.255.0

redundancy-protocol


app

app session 10.0.0.2


is it all? or need to configure other circuit vlan?


thanks a lot!


Correct Answer by jecahuao about 7 years 11 months ago

Hi, for b2b configuration, take a look of the following links:


Configuring Box-to-Box Redundancy

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/configuration/redundancy/guide/Redndncy.html


and Box-to-Box Redundancy on the CSS 11xxx Configuration Example:

http://www.cisco.com/en/US/products/hw/contnetw/ps792/products_configuration_example09186a0080228179.shtml


Cheers,


jc

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Correct Answer
jecahuao Tue, 05/12/2009 - 00:28
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  • Cisco Employee,

Hi, for b2b configuration, take a look of the following links:


Configuring Box-to-Box Redundancy

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/configuration/redundancy/guide/Redndncy.html


and Box-to-Box Redundancy on the CSS 11xxx Configuration Example:

http://www.cisco.com/en/US/products/hw/contnetw/ps792/products_configuration_example09186a0080228179.shtml


Cheers,


jc

dario.didio Tue, 05/12/2009 - 07:12
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  • Silver, 250 points or more

Hi,


when configuring redundancy, you can use following command:


ip redundancy master


on the CSS that you want to become the master. This way, the master also preempts, when it goes offline and comes back, it retakes the master role.


more info:


http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/configuration/redundancy/guide/Redndncy.html#wp1015827


HTH,

Dario

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