Stack x460-g2-48p-10ge4 with vim-2q and x450-g2-48p-10ge4

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I have a x460-g2-48p-10ge4 with a vim-2q and a x450-g2-48p-10ge4 with the v84 SummitStack ports in the back. Both switches are running 16.1.1.4.

I am pretty confident I can stack the switches using alternate 10g stack ports 51 & 52 using a sfp+ twinax cable. Is it possible to stack the switches using s2 on the vim-2q of the x460-g2 and s1/2 on the v84 of the x460-g2 using a qsfp+ twinax cable? I am also planning on using s1 on the vim-2q as a 40g uplink to my network.

The table found here is not updated for the x460-g2 yet.

The 16.1 User Guide found here seems to indicate that stacking between the V84 and vim-2q is possible although it is not very clear and refers to the previously mentioned Hardware Guide that does not mention the x450-g2 that I can find:

  • Summit X450G2 switches support multiple types of QSFP+ stacking cables for connection between VIM-2q ports and QSFP+ ports on other Summit switches. For information on which cables to use with each type of Summit family switch, see the Summit Family Switches Hardware Installation Guide.
Both switches show s1/2 available as native stacking ports. I do not receive a link light when I connect the switches together using port s1/2 and a qsfp+ twinax cable.

Thanks in advance for your help,
Jeff
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Jeff

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Posted 3 years ago

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Brandon Clay, Escalation Support Engineer

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Hi Jeff,

I believe that you should be able to stack these with alternate stacking, using SFP+ cables. I can double check on that when I get into the office tomorrow.

However, the V84 stacking is currently limited to X450-G2s only. It is not compatible with V80 on the X460-G2.

-Brandon
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Jeff

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Brandon,

Thanks for the prompt response. I spoke with Joshua at GTAC last night and he confirmed that the alternate stack ports are the only way to go.

He also confirmed that policy will not span a stack of dissimilar models in 16.1 as per the release notes. This is where I would insert a frowny face if I did that sort of thing.

Jeff
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Jeff

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I misspoke in my original post. The Summit Hardware Guide has not been updated for the x450-g2.
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Drew C., Community Manager

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I anticipate this being updated soon.  The X450-G2 is a brand new switch.  Unfortunately, it sometimes takes a few days for all of the documentation to get published.  I'll check in with our Info Dev team to see if we can get an update on its status.
(Edited)
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Weidle, Bert, Alum

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I checked with Info Dev, the final draft document is going into final review later today,  and should be posted in a few days .
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Brandon Clay, Escalation Support Engineer

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Hi Jeff,

It looks like that statement in the User Guide may be incorrect, as currently the only Summit switch that supports V84 stacking is the X450-G2. I'm looking into this right now, and I'll update this thread with what I find.

-Brandon
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Brandon Clay, Escalation Support Engineer

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Hi All,

Just to close the loop on this, I've confirmed that the statement mentioned above about the X450-G2 connecting to other Summit switches is incorrect. The QSFP+ ports on the X450-G2 can only be used to stack with other X450-G2s, not with other Summits.

I'll get in touch with our Info Dev folks to get this corrected.

-Brandon