Brocade & Dell power connect interoperability & spanning tree

Thirst4Knowledge
Thirst4Knowledge used Ask the Experts™
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Hi Experts,

I have a brocade converged M8248k switch and a Dell Power connect 8024F

I am trying to create a LAG between the two but I cannot join the ports I want on the brocade to an port channel group.  

I get an error message of "cannot join switch-port or router point to group"

which is pretty much baffling...

Does anyone have any documentation for brocade interoperability... I cant find anything on brocade its almost as if its a secret !!! only references I have found have different commands that are not available on my model

i cant get to the config at the moment as Im out of the office but thought that documentation would be a good start
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Top Expert 2015

Commented:
I see 8248 listed as FCOE router
STP is the same but i doubt brocade supports any sort of Link aggregation (as opposed to  a lag, a thing you do not want)

All brocade devices run same firmware image (and same uses guide). v6.1 is current. OEM/lite versions lose support earlier.

Author

Commented:
The web interface for the brocade does include option to build a Link aggregation via port channels.

Is there a difference ?
Top Expert 2015
Commented:
It has nothing to do with Spanning Tree Protocol which will disable transfer over loops in wiring.
From DELL's site: Link Aggregation with support for up to 8 member ports per aggregated link

Do you have a storage exceeding 10Gbps ? Or you only want multiple paths for failover?
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Author

Commented:
its for for fail over
Top Expert 2015

Commented:
You need aggregation. STP will allow only one of cables at no extra speed. I am not sure if brocade is ethernet switch enough to have use of STP. You need to test aggregation and unplugging cables. If it is a no-go you need STP.

Author

Commented:
I thought STP would be needed either way ?

Trunk or Aggregation ?
Top Expert 2015
Commented:
STP allows to avoid cabling loops thus allowing failover etc. Affregation/Trunking are different type where two links are known to be correctly connected.

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