This article delves deeper into ESXi networking, offering commands for configuration, analysis, and troubleshooting of network interfaces, vSwitches, and Distributed Virtual Switches (DVS).
Enhanced NSX ESXi Commands and Network Interface Insights
| Command | Output | Description |
| esxcli network ip route ipv4 list | Shows IPv4 routing table. | Displays the ESXi host’s IPv4 routing table for network troubleshooting. |
| esxcli network firewall get | Retrieves firewall status. | Shows whether the ESXi firewall is enabled or disabled, critical for securing host management. |
| esxcli network ip dns search list | Lists DNS search domains. | Provides configured DNS search domains, essential for name resolution. |
Diving into vSwitch and DVS Advanced Configurations
| Command | Output | Description |
esxcli network vswitch dvs vmware vxlan network list | Lists VXLAN configurations. | Details VXLAN networks on DVS, pivotal for NSX overlay networking. |
| esxcli network vswitch standard portgroup list | Lists port groups on standard switches. | Provides an overview of port groups, aiding in network segmentation and policy application. |
| esxcli network vswitch dvs vmware list | Lists all DVS. | Displays all Distributed Virtual Switches configured on the host. |
| esxcli network vswitch standard list | Shows all standard vSwitch configurations. | Details configurations of standard vSwitches, including port groups and uplinks. |
| esxcli network vswitch standard policy security get -v vSwitch0 | Retrieves security policy for vSwitch0. | Shows security settings like MAC address changes and forged transmits policies. |
| esxcli network vswitch dvs vmware lacp status get -v DSwitch0 | Gets LACP status of DSwitch0. | Displays LACP (Link Aggregation Control Protocol) status, crucial for link aggregation configurations. |
| esxcli network vswitch standard uplink add -u vmnic2 -v vSwitch1 | Adds uplink vmnic2 to vSwitch1. | Configures physical NICs as uplinks to standard vSwitches, enhancing network connectivity. |
| esxcli network vswitch dvs vmware vxlan config get | Shows global VXLAN configuration. | Retrieves global VXLAN settings, important for NSX network virtualization setups. |
| esxcli network vswitch standard policy failover set -v vSwitch0 –active-uplinks vmnic0,vmnic1 | Sets active uplinks for failover. | Configures active/standby uplinks for standard vSwitch, crucial for high availability. |
| esxcli network vswitch dvs vmware portgroup list | Lists all port groups on DVS. | Provides details on port groups within DVS, aiding in VLAN and security policy management. |
These commands offer administrators the ability to finely tune their vSwitch and DVS configurations, ensuring optimal performance, security, and reliability of their virtual network infrastructure. Understanding and utilizing these commands can significantly enhance the management of network resources in a VMware NSX environment.