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Stacking between x440 and x670v Extreme Switch

Posted on 2015-01-25
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Last Modified: 2015-01-29
I need to stack 4 switches, 2 x X670V and 2 x X440.

I have successfully stacked the 2 x X670V together via VIM40GB4X and i need to add the 2 x X440 to the stack as well.

Is this possible?

thanks in advance
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Question by:Gene Fontanilla
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by:Aaron Tomosky
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Disclaimer: I've no experience with extreme in production, but I did evaluate them about a year ago so I'm familiar with them only from reading documentation. Hopefully this is helpful.

Do you mean you use the " VIM4-40G4X" to stack the 2x x670V switches? How many cables did you connect? 2 cables should give you SummitStack-V160 and 4 should give you SummitStack-V320
http://learn.extremenetworks.com/rs/extreme/images/Summit-X670V-48t-DS.pdf

Here is the LONG stacking doc
http://extrcdn.extremenetworks.com/wp-content/uploads/2014/02/100286-00_Rev19_InstallGuide.pdf
Page 159 is where the interesting chart is.
It looks like the only way to stack a 670V with a 440 is if you have the x440-10G and use SummitStack-V with an SPF+ cable. It specifically calls out "*X440-L2 models cannot be stacked"
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by:Gene Fontanilla
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Hi Aaron,

Yes i used the VIM4-40G4X stacking module, I used 2 qsfp+ cables on a SummitStack-V160 Setup. And I am trying to use the sfp+ ports on the x440 as the stacking ports.

Problem is that when I enter "show stacking". it does not detect the x440 from the x670v and vice versa.

Im using the x440-48t-10G switch by the way.

I hope someone can confirm to me if this is possible or not.
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Aaron Tomosky earned 500 total points
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Again, I'm just reading the manual here...

according to page 142 of the userguide
http://documentation.extremenetworks.com/exos/downloads/EXOS_User_Guide_15_6.pdf

you need to login to the x440 and check:
show stacking-support
show stacking stack-ports

then probably run:
enable stacking-support

The next few pages go through enabling stacking. IMO if these are new then you have support, you should get with them to help with a complicated setup like this.
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by:Gene Fontanilla
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Hi aaron,

I have successfully stacked all switches via summit stack-V feature, but that was using 10g as stacking ports. I'm now trying to stack it with the combination of the 40g and 10g.

thanks for the help!
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by:Aaron Tomosky
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Thats what I was worried about, being able to use the 40g for the x670 and the 10g to the x440 at the same time. I couldn't find anything about this in the documentation...

anyway, I'm glad you got it working across models at least at 10g, it's nice to have that setup proved good.

If both 40g and 10g fails, you could always do a 40g stack and a separate 10g stack for the x440 switches. Then possibly a 2x 10g linkagg up to the x670 stack. That would leave you with two management switches...
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Author Comment

by:Gene Fontanilla
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I got the 40g and 10g stacking to work!

but then again, i can't seem to get the 80G setup to work on the stack.

I think this is the limitation for this setup
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by:Aaron Tomosky
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That's awesome! Now YOU are the expert on stacking extreme switches.
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by:Gene Fontanilla
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Thanks for the link and directing me to the right page/topic
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by:Gene Fontanilla
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Hi aaron,

just an update on the stacking, I have managed to stack the 2 - x670v  with an 80G speed on in stack ports! :) apparently this setup is called v320. I thought v160 would give me the 80G. so there it is!

thanks again!
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by:Aaron Tomosky
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I think 160 is 4x40gb, 320 is 4x80gb. You can add more cables to get more speed and redundancy.
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