There is a command group 'az_networkfabric_fabric'. This group of commands could 'manage network fabric 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_fabric_create'.The syntax is: az networkfabric fabric create --fabric-asn
                               --ipv4-prefix
                               --managed-network-config
                               --nf-sku
                               --nfc-id
                               --resource-group
                               --resource-name
                               --server-count-per-rack
                               --ts-config
                               [--annotation]
                               [--fabric-version]
                               [--ipv6-prefix]
                               [--location]
                               [--no-wait {0, 1, f, false, n, no, t, true, y, yes}]
                               [--rack-count]
                               [--tags]. The 1th example of the child command would be to use it to 'create a network fabric with option b properties', the syntax is: az networkfabric fabric create --resource-group "example-rg" --location "westus3" --resource-name "example-fabric" --nf-sku "fab1" --fabric-version "1.x.x" --nfc-id "/subscriptions/xxxxx-xxxx-xxxx-xxxx-xxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/networkFabricControllers/example-NFC" --fabric-asn 20 --ipv4-prefix 10.1.0.0/19 --rack-count 2 --server-count-per-rack 5 --ts-config "{primaryIpv4Prefix:'172.31.0.0/30',secondaryIpv4Prefix:'172.31.0.20/30',username:'****',password:'*****',serialNumber:'1234'}" --managed-network-config "{infrastructureVpnConfiguration:{networkToNetworkInterconnectId:'/subscriptions/xxxxx-xxxx-xxxx-xxxx-xxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/networkFabrics/example-fabric/networkToNetworkInterconnects/example-nni',peeringOption:OptionB,optionBProperties:{routeTargets:{exportIpv4RouteTargets:['65046:10039'],exportIpv6RouteTargets:['65046:10039'],importIpv4RouteTargets:['65046:10039'],importIpv6RouteTargets:['65046:10039']}}},workloadVpnConfiguration:{networkToNetworkInterconnectId:'/subscriptions/xxxxx-xxxx-xxxx-xxxx-xxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/networkFabrics/example-fabric/networkToNetworkInterconnects/example-nni',peeringOption:OptionB,optionBProperties:{routeTargets:{exportIpv4RouteTargets:['65046:10039'],exportIpv6RouteTargets:['65046:10039'],importIpv4RouteTargets:['65046:10039'],importIpv6RouteTargets:['65046:10039']}}}}". The 2th example of the child command would be to use it to 'create a network fabric with option a properties', the syntax is: az networkfabric fabric create --resource-group "example-rg" --location "westus3" --resource-name "example-fabric" --nf-sku "fab1" --fabric-version "1.x.x" --nfc-id "/subscriptions/xxxxx-xxxx-xxxx-xxxx-xxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/networkFabricControllers/example-NFC" --fabric-asn 20 --ipv4-prefix "10.1.0.0/19" --rack-count 2 --server-count-per-rack 5 --ts-config "{primaryIpv4Prefix:'172.31.0.0/30',secondaryIpv4Prefix:'172.31.0.20/30',username:'****',password:'*****',serialNumber:1234}" --managed-network-config "{infrastructureVpnConfiguration:{networkToNetworkInterconnectId:'/subscriptions/xxxxx-xxxx-xxxx-xxxx-xxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/networkFabrics/example-fabric/networkToNetworkInterconnects/example-nni',peeringOption:OptionA,optionAProperties:{bfdConfiguration:{multiplier:5,intervalInMilliSeconds:300},mtu:1500,vlanId:520,peerASN:65133,primaryIpv4Prefix:'172.31.0.0/31',secondaryIpv4Prefix:'172.31.0.20/31'}},workloadVpnConfiguration:{networkToNetworkInterconnectId:'/subscriptions/xxxxx-xxxx-xxxx-xxxx-xxxxx/resourceGroups/example-rg/providers/Microsoft.ManagedNetworkFabric/networkFabrics/example-fabric/networkToNetworkInterconnects/example-nni',peeringOption:OptionA,optionAProperties:{bfdConfiguration:{multiplier:5,intervalInMilliSeconds:300},mtu:1500,vlanId:520,peerASN:65133,primaryIpv4Prefix:'172.31.0.0/31',secondaryIpv4Prefix:'172.31.0.20/31',primaryIpv6Prefix:'3FFE:FFFF:0:CD30::a0/127',secondaryIpv6Prefix:'3FFE:FFFF:0:CD30::a0/127'}}}". The 3th example of the child command would be to use it to 'help text for sub parameters under the specific parent can be viewed by using the shorthand syntax       see https   github com azure azure cli tree dev doc shorthand_syntax md for more about shorthand syntax', the syntax is: az networkfabric fabric create --ts-config "??"
az networkfabric fabric create --managed-network-config "{infrastructureVpnConfiguration:??"
az networkfabric fabric create --managed-network-config "{infrastructureVpnConfiguration:{option-b-properties:??". The parameter '--fabric-asn' is required. It is used to asn of ce devices for ce/pe connectivity. the value should be between 1 to 4294967295. example: 65123.. The parameter '--ipv4-prefix' is required. It is used to ipv4prefix for management network. example: 10.1.0.0/19.. The parameter '--managed-network-config' is required. It is used to configuration to be used to setup the management network.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--nf-sku' is required. It is used to supported network fabric sku. the sku determines whether it is a single / multi rack network fabric.. The parameter '--nfc-id' is required. It is used to azure resource id for the networkfabriccontroller the networkfabric belongs.. 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 network fabric.. The parameter '--server-count-per-rack' is required. It is used to number of servers.possible values are from 1-16.. The parameter '--ts-config' is required. It is used to network and credentials configuration currently applied to terminal server.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--annotation' is optional. description for underlying resource.. The parameter '--fabric-version' is optional. the version of network fabric.. The parameter '--ipv6-prefix' is optional. ipv6prefix for management network. example: 3ffe:ffff:0:cd40::/59.. The parameter '--location -l' is optional. location of azure region  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 '--rack-count' is optional. number of compute racks associated to network fabric. possible values are from 1-8.. The parameter '--tags' is optional. resource tags.  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. 