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MrVmware9423
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ECMP approach used mostly...

Dear Team,

Based on below daigrams which approach mostly used by customers. 

 

8 Way ECMP with 8 Edge Nodes

MrVmware9423_3-1660127129435.jpeg

 

8 way ECMp with 4 Edge Nodes

MrVmware9423_2-1660127123407.jpeg

 

Thank you in advance

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shank89
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There are multiple layers of ECMP,

  • T0DR to SR (up to 8 active Edge nodes)
  • T0SR to Physical (up to 8 paths / next hops)

How you chose to achieve this is up to your design.

Shashank Mohan

VCIX-NV 2022 | VCP-DCV2019 | CCNP Specialist

https://lab2prod.com.au
LinkedIn https://www.linkedin.com/in/shankmohan/
Twitter @ShankMohan
Author of NSX-T Logical Routing: https://link.springer.com/book/10.1007/978-1-4842-7458-3

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shank89
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It's pretty hard to suggest a common approach, its very much dependent on customer requirements.

Customers usually start off with 2 Edges, if there are throughput or specific requirements you can look at scaling horizontally or vertically.  But going straight to 8 Edge nodes unless properly discovered is overkill, as could 4 potentially be.

The question is... why are you trying to do this?  If you are..

Shashank Mohan

VCIX-NV 2022 | VCP-DCV2019 | CCNP Specialist

https://lab2prod.com.au
LinkedIn https://www.linkedin.com/in/shankmohan/
Twitter @ShankMohan
Author of NSX-T Logical Routing: https://link.springer.com/book/10.1007/978-1-4842-7458-3
ShahabKhan
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I agree with Shashank. At the end of the day, it all depends on Customer's requirement & use-case. I too suggest Customer to start with 2 Edge Nodes with 4 path ECMP & then based on the utilization add more Edge Nodes to the cluster. 

MrVmware9423
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Thank you for the asisstance.

 

Last question, is below diagram looks good if we need to setup 8 way ECMP with 8 Edge nodes, 4 Edge Node points to ToR1 VLAN300 and rest 4 points to ToR2 VLAN 400

 

MrVmware9423_0-1660130983761.jpeg

 

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shank89
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There are multiple layers of ECMP,

  • T0DR to SR (up to 8 active Edge nodes)
  • T0SR to Physical (up to 8 paths / next hops)

How you chose to achieve this is up to your design.

Shashank Mohan

VCIX-NV 2022 | VCP-DCV2019 | CCNP Specialist

https://lab2prod.com.au
LinkedIn https://www.linkedin.com/in/shankmohan/
Twitter @ShankMohan
Author of NSX-T Logical Routing: https://link.springer.com/book/10.1007/978-1-4842-7458-3
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