Actions to Address Low Throughput and Congestion in NSX-T Data Center
Question
In a NSX-T Data Center environment, an administrator is observing low throughput and congestion between the Tier-0 Gateway and the upstream physical routers.
Which two actions could address low throughput and congestion? (Choose two.)
Answers
Explanations
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A. B. C. D. E.BD.
In an NSX-T Data Center environment, the Tier-0 gateway serves as the default gateway for all the connected subnets and provides connectivity to the physical world. When an administrator observes low throughput and congestion between the Tier-0 gateway and the upstream physical routers, there are a few actions that could be taken to address the issue. Let's explore the two options that could help address the problem:
A. Configure a Tier-1 gateway and connect it directly to the physical routers: Adding a Tier-1 gateway and connecting it directly to the physical routers can provide an alternate path for traffic to flow from the virtual environment to the physical world. This can help distribute the traffic load and alleviate congestion on the Tier-0 gateway. This approach is also helpful if the upstream physical routers are experiencing congestion and cannot handle the incoming traffic. By creating a new Tier-1 gateway and configuring it to connect directly to the physical routers, traffic can be rerouted through the new gateway and congestion can be reduced.
B. Configure ECMP on the Tier-0 gateway: ECMP, or Equal-Cost Multipath, is a routing technique that enables traffic to be distributed across multiple paths of equal cost. When configured on the Tier-0 gateway, ECMP can help increase throughput and reduce congestion by balancing traffic across multiple links to the upstream physical routers. This approach is especially useful when there are multiple physical routers available for traffic to use, and can help ensure that all available links are being used to their fullest potential.
C. Configure NAT on the Tier-0 gateway: Configuring NAT, or Network Address Translation, on the Tier-0 gateway can help address issues related to address overlapping between the virtual and physical networks. However, this option is not directly related to low throughput and congestion, and therefore may not provide a significant improvement in performance.
D. Deploy Large size Edge node/s: Deploying a large size Edge node/s can help increase the processing power available for handling traffic in the NSX-T environment. However, this option may not directly address the low throughput and congestion issue between the Tier-0 gateway and the upstream physical routers.
E. Add an additional vNIC to the NSX Edge node: Adding an additional vNIC to the NSX Edge node can provide an additional interface for traffic to flow through, which can help distribute the traffic load and alleviate congestion. However, this option may not directly address the issue between the Tier-0 gateway and the upstream physical routers.
In summary, the two actions that could address low throughput and congestion between the Tier-0 Gateway and the upstream physical routers in an NSX-T Data Center environment are:
A. Configure a Tier-1 gateway and connect it directly to the physical routers. B. Configure ECMP on the Tier-0 gateway.
