10-02-2018 04:24 AM
Dear ,
Kindly I am designing a network with core layer as below:
three switches 3850 stacking in one group:
WS-C850-24XS-S + WS-C3850-24XS-S + WS-C3850-24T-S
All three switches in one stack , all has the release 16.6 & IP base license.
I will have two stack groups for redundancy (each stack group contain three switches as above)
I want to check how can I configure these two sets of stack groups in the core layer ? Can I do it with HSRP or there is another way?
Thanks
Sally
10-02-2018 05:01 AM
10-02-2018 05:21 AM
Thanks for your reply.
I will have a group of edge switches , each connected through two uplink ports 10G LR ports to the core layer.
In the core layer I will terminate uplink port 1 from the access switch to stack group 1 & the second uplink from the access switch to the second stack group.
My point was related that how can I make the two stacks group communicate with each other.
Can I use HSRP or stackwise virtual?
What is better in the design?
Thanks
Sally
10-02-2018 11:04 PM
Hi Sally,
As far as I know the stackwise virtual option does not work between already stacked switches. I might be wrong...
So that would leave you with only the one option using two stacks of 3 each switches, configured as collapsed core/distribution.
If your requirement is to have VLANs span across different access (edge) switches then you will need to have the HSRP with STP tweaking option. What I mean by tweaking is that you will need to pair the active HSRP side with the STP root Bridge for optimization of traffic flow.
If the requirement is to have unique VLANs per access(edge) switch then you may have Layer 3 links between access and core (thus no need for STP and HSRP), but for me it sounds like this is not the option.
I hope this helps.
Good luck and enjoy the experience
Ciao
JC
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide