VMware 2V0-41.24 - VMware NSX 4.X Professional V2

Configure ECMP on the Tier-0 gateway: ECMP (Equal-Cost Multi-Path) allows multiple paths for traffic between the Tier-0 Gateway and the upstream physical routers, effectively distributing the traffic load and improving throughput. By enabling ECMP, you can reduce congestion and increase bandwidth utilization, thus addressing performance issues.

Deploy Large size Edge node/s: Deploying larger Edge nodes can provide more resources (CPU, memory, and network interfaces) to handle higher throughput and reduce congestion. This is especially important if the existing Edge node is overwhelmed by the amount of traffic.

https://vdc-download.vmware.com/vmwb-repository/dcr-public/c3fd9cef-6b2b-4772-93be-3fe60ce064a1/1f67b9e1-b111-4de7-9ea1-39931d28f560/NSX-T%20Command-Line%20Interface%20Reference.html#get%20logical-switch%20%3Clogical-switch-id%3E

To validate the BGP connection status between the Tier-0 Gateway and the upstream physical router on an NSX Edge node, the correct sequence involves enabling the specific logical router (Tier-0 Gateway), checking the VRF (Virtual Routing and Forwarding) context, and then using the show bgp neighbor command to view the BGP session status.

enable : This command enables the logical router interface (Tier-0 Gateway) to access its configuration.

get vrf : This command checks the specific VRF (used for routing separation) to see the associated routing table.

show bgp neighbor: This command displays the status of the BGP connection, including details about the neighbor relationships and their state.

IP Pool: This allows you to define a range of IP addresses within NSX that the TEPs can use.

DHCP Server: This enables the TEPs to automatically obtain IP addresses from a DHCP server configured in the network.

When using NSX Federation, Policy mode is the only supported mode in NSX Global Manager. This mode allows centralized management and consistent policy enforcement across multiple NSX environments, providing a unified approach to managing network and security policies in federated deployments.

VMware recommends deploying a virtual NSX Edge Node using an ISO in either automated or interactive mode. This method provides flexibility and ensures that the NSX Edge node is deployed properly with all the necessary configurations. Using an ISO allows for a more streamlined and controlled deployment process, especially in larger environments.

If Distributed Firewall Rule hit counts are not being logged, it is likely because Distributed Firewall Rule logging is not enabled. For hit counts to appear in the logs, logging must be explicitly enabled on each firewall rule where tracking is required. Without enabling logging at the rule level, no hit count information will be recorded in syslog.

The insertion point for East-West network introspection in NSX is at the Guest VM vNIC (virtual Network Interface Card). By inspecting traffic at the vNIC level, NSX can monitor and apply security policies to traffic between virtual machines (East-West traffic) within the same network segment or data center, providing detailed security controls for VM-to-VM communication.

esxcfg-nics -l: This command lists all physical NICs on the ESXi host along with their link status, allowing you to check if any vmnic link status is down.

esxcli network nic list: This command provides a list of network interfaces with their details, including link status, making it useful for verifying if the link status of a vmnic is down.

Display how the different NSX components are interconnected.

Network Topology in NSX provides a visual representation of how different NSX components (like Edge nodes, Logical Routers, and other NSX components) are interconnected.

Display the VMs connected to Segments.

It also allows you to see which VMs are connected to specific segments (logical switches).

Display how the Physical components are interconnected.

The Network Topology view includes information about how physical network components are connected, providing a comprehensive overview of both the virtual and physical networking infrastructure.