Intermediate node SD Access

[Pascal Lacroix]

Hi,

i have a question about the number of intermediate nodes in a SD Access fabric. Can i add two intermediate nodes behind each other? So you would get:

Location A Border Node --> Location B Intermediate Node --> location C Intermediate node --> Location D Fabric Edge Nodes

This because the fibers/switches of location D comes together at Location C and there are no fibers between location C and location A. 

See attachment voor network overview.

kind regards,

Pascal

[balaji.bandi · Accepted solution]

Technically i do not see any issue on this design. ( how you claim in DNAC about node important)

Check if this is feasible, Intermediate node or distribution ( is this single switch, what model ?) 

Look at four-tier :

https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#EdgeNode

[Pascal Lacroix]

Hi Balaji,

thanks for your answer. We are going to use a Cat9500-16X or Cat9300X-24Y as an intermediate node.

If i look at the four-tier model, then i should be able to connect two intermediate nodes (distribution 1 and distribution 2) behind each other. Correct?

regards,

Pascal

[balaji.bandi]

I will advise having Cat 9500 as an intermittent node (compare to Cat9300), again this is pure your decision.

yes, four-tier is what you looking to deploy. that is valid.

[Pascal Lacroix]

ok, i will take that in consideration.

thx!

[Roddie Hasan]

Hi Pascal,

There are no restrictions on the type or number of Intermediate nodes in your SDA fabric nor are they any restrictions on connectivity.  The only function of an Intermediate node is to be able to route packets between other fabric nodes, so as long as it is capable of routing and meets your connectivity and speed requirements, any topology/model is supported.

FWIW - Technically, there is no actual Intermediate node role in SDA, and DNAC will not show a specific feature for you to enable.  It is literally just a device that facilitates connectivity in your topology.

I hope this helps!

Roddie

[Pascal Lacroix]

Hi Roddie,

thanks for your answer. That's clear to me.

kind regards,
Pascal