benefits of splitting a switch stack

Question

We currently have 2x s6000 acting as our network core with a number of n2048s being used for access. One switch stack consists of 6 switches of which the first 4 switches each have an uplink to both core1 and core2. Therefore there is 40GB to core1 and 40GB to core2 (80GB in total). I've been asked to look at splitting the stacks so they have 2x 3switch stacks each with 60GB uplinks - i.e. 120GB in total. Could we not just connect uplinks to switches 5 and 6 in the stack? I don't see why we need to split? Thanks for any advice on this. Huw

DELL-Josh Cr · Answer

Hi hywy, The N2048s can have up to 8 members in a LAG, so are the uplinks to Core1 and Core 2 part of the same LAG or are they different LAGs?

DELL-Josh Cr · Answer

As long as the total interfaces per port channel are 8 or less yes you can just add the other 2 interfaces.

huwy · Answer

Hi Josh.

Thanks for coming back. I appreciate the help.

I checked this out and they don't seem to be in a port channel - I am confused how this is supposed to work as the cores have VLT enabled.

Have these been setup incorrectly and are only uplinking at 10GB? I will attached some screen shots

Cheers,

Huw

huwy · Answer

Thanks Josh.

huwy · Answer

edited

DELL-Josh Cr · Answer

It looks like te1/0/1 and 1/02 are in port channel 1, are 2/0/1 and 2/0/2 in the same port channel?

huwy · Answer

I'll have to check that tomorrow and get back to you.

Assuming there is a 4 interface port channel to core1 and a 4 interface port channel to core 2 then is there no reason why I couldn't add another 2 interfaces to each of the LAGs?

Networking General

benefits of splitting a switch stack

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