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NSX-T Routing logical and physical views

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In this blog we will look at logical and physical view diagrams covering different NSX-T routing scenarios.

Scenario-1 Single Tier topology 


Scenario-2 Multi tier with no statefull services 


Scenario-3 Multi tier with statefull services


Deployment modes: Active-Active(A/A) or Active-Standby(A/S)

Active-Active:
  • Active-Active mode is the default high availability mode for T0
  • In this mode, stateful services cannot be used 
  • But this supports stateless services such as reflexive NAT.
Active-Standby:

  • It is the only supported high availability mode supported by T1, and please be noted that T0 can also be configured in Active-Standby
  • In this mode, stateful services can be used  so this mode is used when stateful services are required
  • All stateful services are available on both T0 and T1 (when they are setup in Active-Standby mode) except the load balancer, LB is only available on T1 
Stateful services:

SNAT/DNAT
Load balancer
VPN
Firewall
DHCP 



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