Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

Bronze

Switch Stack - Different Feature Sets

Hi,

I have  stack of 5 3750X switches -

3 x IPBase
2x IPServices

 

My question is - Because these units are managed as one - If I enable sdm routing template - I Assume I all the routing features will be available to me on my stack? Would there be any difference if only one switch member had IPServices?

Is there any benefit of having 2 switches with IPServices if running a stack? 

Is it a case of, as long as one switch in the stack has the feature set. These features will be available. If I lose these switches - the features are lost?

 

Thanks

  • LAN Switching and Routing
5 REPLIES
Cisco Employee

The Cisco Catalyst 3750-X

The Cisco Catalyst 3750-X Series Switches with LAN Base feature set can only stack with other Cisco Catalyst 3750‑X Series LAN Base switches. A mixed stack of LAN Base switch with IP Base or IP Services features set is not supported.

It was always a recommendation.

According to this document:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps5023/prod_white_paper09186a00801b096a.html

Cisco IOS Software Images Must Be Identical


The Cisco StackWise technology requires that all units in the stack run the same release of Cisco IOS Software. When the stack is first built, it is recommended that all of the stack members have the same software feature set - either all IP Base or all IP Services. This is because later upgrades of Cisco IOS Software mandate that all the switches to be upgraded to the same version as the master.

With that being said I have seen customers run IP base with IP services even on a 3750x. LAN base will only run with LAN base though.

Cheers,

HTH

Inayath

******** plz dont forget to rate all usefull posts.*****

Bronze

At the moment I have the

At the moment I have the following - 

*    1 30    WS-C3750X-24       15.0(2)SE2            C3750E-UNIVERSALK9-M
     2 30    WS-C3750X-24P      15.0(2)SE2            C3750E-UNIVERSALK9-M
     3 30    WS-C3750X-24       15.0(2)SE2            C3750E-UNIVERSALK9-M
     4 30    WS-C3750X-24P      15.0(2)SE2            C3750E-UNIVERSALK9-M
     5 30    WS-C3750X-24       15.0(2)SE2            C3750E-UNIVERSALK9-M

2 of these have IPBase 

3 of them have IPServices.

The stack works fine.

Cisco Employee

Yes,IPBASE and IPServices

Yes,

IPBASE and IPServices would work fine.

These both would not be workiing if one of the switch has Lan Base.

 

HTH

Inayath

Cisco Employee

A)My question is - Because

A)My question is - Because these units are managed as one - If I enable sdm routing template - I Assume I all the routing features will be available to me on my stack? Would there be any difference if only one switch member had IPServices?

No difference.Generally if using IP Services, you'll want at least two switches with that feature set license so if the master fails, the other IP Services licensed switch will keep the stack running IP Services (otherwise the stack would drop down to IP Base feature set).

(Remember on a 3750X stack, you'll have the same binary [universal] image installed on all your stack members, but each will have its own device specific feature license.)

If we were to lose all of the switches running IP Services the stack would drop back to IP Base.  

B)Is there any benefit of having 2 switches with IPServices if running a stack?

Answer been told above.

C)

Is it a case of, as long as one switch in the stack has the feature set. These features will be available. If I lose these switches - the features are lost?

Yes.

 

hth

Super Bronze

DisclaimerThe Author of this

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

By default, a stack election should prefer an IP Services license/image over IP Base.

If the stack only has a single IP Service stack member, and it's the stack master, and if it fails, the stack will revert to IP Base features.  The way to avoid this is having multiple stack members (at least two) with IP Services.

34
Views
0
Helpful
5
Replies
This widget could not be displayed.