In an NSX environment, an administrator is observing low throughput and intermittent congestion between the Tier-0 Gateway and the upstream physical routers. The environment was designed for high…

Question

Options

• AConvert Tier-1 gateways to be edgeless.
• BDisable NAT on the Tier-0 gateway.
• CAdd an additional vNIC to the NSX Edge node.
• DDeploy additional Edge nodes.

• A
  6% (3)
• B
  13% (6)
• C
  4% (2)
• D
  77% (36)

Explanation

When a VMware Cloud Foundation (VCF) environment experiences North-South congestion at the Tier-0 Gateway, it typically indicates that the processing capacity of the existing NSX Edge Nodes has been reached. In an Active/Active configuration, the Tier-0 gateway utilizes Equal Cost Multi-Pathing (ECMP) to distribute traffic across all available Edge nodes in the cluster. If a two-node Edge cluster is saturated despite ECMP being enabled, the standard "Scale-Out" procedure is to deploy additional Edge nodes (Option D). NSX supports up to 8 Edge nodes in a single cluster for a Tier-0 gateway. By adding more nodes, the administrator increases the total number of CPU cores dedicated to the DPDK (Data Plane Development Kit) packet processing engine. Each additional node provides more "bandwidth lanes" for the ECMP hash to utilize, effectively multiplying the aggregate throughput capability of the North-South exit point.

No community discussion yet for this question.