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Cluster switch and etherchannels

Unanswered Question
May 5th, 2006
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I`m configuring etherchannel between two catalyst 2950 stacked using gbic gigastack 3500XL and two gbic 1000BaseT to form the port group, I configured a cluster with both switches and I tried to connect to a Stacked core switch 3750, but when I connected the second gbic 1000BaseT the network fails.


Is possible setting up Etherchannel between two different switches using a cluster configuration to a core switch 3750?


Jesus Canastero

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Bobby Thekkekandam Fri, 05/05/2006 - 06:53
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Hi Jesus,


Are you trying to create a channel such that one port is on one switch, and the other is on another switch in each stack?


If so, this is not supported for the gigastacked switches. We do support cross-stack etherchannels for 3750s but on the 2950/3500xl stacks you'll have to keep each port in the channel local to the same switch.


HTH,


Bobby


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j.canastero Fri, 05/05/2006 - 09:08
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Hi Bobby


Mmmm... well... nothing to do!..


Is there some article that have something about this'?


Thanks in advance


Jesus

Bobby Thekkekandam Fri, 05/05/2006 - 09:21
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  • Cisco Employee,

Hi Jesus,


Support for cross-stack etherchannels is mentioned here for the 3750:


http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a008017ed8f.html


Lack of support for cross-stack etherchannels for gigastacked switches is not explicitly mentioned in any document, however. The lack of support is implied by not being listed among the supported features.


HTH,


Bobby


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