connecting several T1 to the same segment possible?

[AntonioPA]

Hi all

I would like to connect several T1 routers to a single hub segment. These T1 routers would not be attached to an Edge cluster because they would not require any SR. The intended topology would look like as follows:

 

------------------------------- Segment Hub

 |             |           |

 |             |           |

T1a           T1b         T1c

 |             |           |

 |             |           |

Segment A    Segment B    Segment C

         
In the above example, there is only a single segment "below" each T1, but the intention would be to have several segments.

So far I haven't found how to achieve this.

Many thanks in advance

[p0wertje]

Hi,

 

It is not possible to connect more then 1 logical-router to the same segment.
The only thing you could do is connect it over the service interface. But for the service interface you need a SR

From the design guide:
Service Interface: Interface connecting VLAN segments to provide connectivity and
services to VLAN backed physical or virtual workloads. Service interface can also be
connected to overlay segments for Tier-1 standalone load balancer use-cases explained in
Load balancer Chapter 6 . This interface was referred to as centralized service port (CSP)
in previous releases. Note that a gateway must have a SR component to realize service
interface. NSX-T 3.0 supports static and dynamic routing over this interface.

[shank89]

What is the end goal and what are you trying to achieve in doing this?

[AntonioPA]

The end in my case is to increase the number of T1 LR a VM can be connected to using distributed routing. The ESXi hypervisor limits to 10 NICs

[AntonioPA]

Another interesting use case would be to have a multi-tier T1. How to achieve this othrewise?