NSX version 4.0.1.1 introduces support for stateful services on Tier-0 and Tier-1 gateways in Active-Active HA mode, where one Service Router (SR) can span multiple active edge nodes. This feature offers improved resource usage and scale-out for higher performance.
This article introduces a three-step troubleshooting approach that can be used to determine the traffic path to a target IP, for an NSX network topology that uses this feature.
In this example, NSX Edge-1 and Edge-2, are members of an NSX 4.0.1 Edge cluster.
- The Tier-0 SR is in stateful active active mode, spanning two Edges.
Step 1: Determine the uplink interface UUIDs
Step 2: Determine the group interface HA details
Step 3: Determine the path to a target IP address
The Result:
We have done it!
Using the NSX Edge CLI, in this example we have determined that the path to target IP 8.8.8.8 is over Edge-2.
Command Summary:
Here are a summary of the NSX Edge commands we used:
| Command | Description |
| get logical-routers | Display information about the logical routers. |
| get logical-router <UUID> high-availability status | Display the high availability status for the specified logical router. |
| get logical-router interfaces | Display information for all logical router interfaces. |
| get logical-router interface <UUID> interface-groups high-availability | Display high availability information for an group interface. |
| get logical-router interface <UUID> shadow-macs ip <IP-Address> | Determine the path to a target IP address. |
