There is a command group 'az_networkcloud_l3network'. This group of commands could 'manage layer 3  l3  network'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_networkcloud_l3network_create'.The syntax is: az networkcloud l3network create --extended-location
                                 --l3-isolation-domain-id
                                 --l3-network-name
                                 --resource-group
                                 --vlan
                                 [--interface-name]
                                 [--ip-allocation-type {dualstack, ipv4, ipv6}]
                                 [--ipv4-connected-prefix]
                                 [--ipv6-connected-prefix]
                                 [--location]
                                 [--no-wait {0, 1, f, false, n, no, t, true, y, yes}]
                                 [--tags]. The 1th example of the child command would be to use it to 'create or update l3 network', the syntax is: az networkcloud l3network create --name "l3NetworkName" --extended-location name="/subscriptions/subscriptionId/resourceGroups/resourceGroupName/providers/Microsoft.ExtendedLocation/customLocations/clusterExtendedLocationName" type="CustomLocation" --location "location"  --interface-name "eth0" --ip-allocation-type "DualStack" --ipv4-connected-prefix "198.51.100.0/24" --ipv6-connected-prefix "2001:db8::/64" --l3-isolation-domain-id "/subscriptions/subscriptionId/resourceGroups/resourceGroupName/providers/Microsoft.ManagedNetworkFabric/l3IsolationDomains/l3IsolationDomainName" --vlan 12 --tags key1="myvalue1" key2="myvalue2" --resource-group "resourceGroupName". The parameter '--extended-location' is required. It is used to the extended location of the cluster associated with the resource.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--l3-isolation-domain-id' is required. It is used to the resource id of the network fabric l3isolationdomain.. The parameter '--l3-network-name --name -n' is required. It is used to the name of the l3 network.. The parameter '--resource-group -g' is required. It is used to name of resource group. you can configure the default group using `az configure --defaults group=<name>`.. The parameter '--vlan' is required. It is used to the vlan from the l3isolationdomain that is used for this network.. The parameter '--interface-name' is optional. the default interface name for this l3 network in the virtual machine. this name can be overridden by the name supplied in the network attachment configuration of that virtual machine.. The parameter '--ip-allocation-type' is optional. the type of the ip address allocation, defaulted to "dualstack".. The parameter '--ipv4-connected-prefix' is optional. the ipv4 prefix (cidr) assigned to this l3 network. required when the ip allocation type is ipv4 or dualstack.. The parameter '--ipv6-connected-prefix' is optional. the ipv6 prefix (cidr) assigned to this l3 network. required when the ip allocation type is ipv6 or dualstack.. The parameter '--location -l' is optional. the geo-location where the resource lives  when not specified, the location of the resource group will be used.. The parameter '--no-wait' is optional. do not wait for the long-running operation to finish.. The parameter '--tags' is optional. resource tags.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. 