There is a command group 'az_networkfabric_l2domain'. This group of commands could 'manage l2 isolation domain resource'. 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_networkfabric_l2domain_create'.The syntax is: az networkfabric l2domain create --nf-id
                                 --resource-group
                                 --resource-name
                                 --vlan-id
                                 [--annotation]
                                 [--location]
                                 [--mtu]
                                 [--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 a l2 isolation domain', the syntax is: az networkfabric l2domain create --resource-group "example-rg" --resource-name "example-l2domain" --location "westus3" --nf-id "/subscriptions/xxxxxx-xxxxxx-xxxx-xxxx-xxxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/NetworkFabrics/example-fabricName" --vlan-id  501 --mtu 1500. The parameter '--nf-id' is required. It is used to arm resource id of the network fabric.. 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 '--resource-name' is required. It is used to name of the l2 isolation domain.. The parameter '--vlan-id' is required. It is used to vlan identifier of the network fabric. the value should be between 100 to 4094. example: 501.. The parameter '--annotation' is optional. description for underlying resource.. The parameter '--location -l' is optional. location of azure region  when not specified, the location of the resource group will be used.. The parameter '--mtu' is optional. maximum transmission unit. the value should be between 64 to 9200. default value is 1500. example: 1500.. 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.. 