-> {"jsonrpc":"2.0","id":4,"method":"tools/call","params":{
     "name":"network.cli.exec","arguments":{"cmd":"show ip arp vrf mgmt 10.0.0.5"}}}
<- {"jsonrpc":"2.0","id":4,"result":{"stdout":"10.0.0.5  00:50:56:ab:cd:ef  Vlan100"}}