With IPHost Network Monitor you can run WMI Request Bytes Out Total monitoring of various devices in your network.
To create a WMI monitor for Request Bytes Out Total, provide host name (it must be a Windows host) and specify custom WQL query:
The total size, in bytes, of responses sent to a client. This does not include standard HTTP response headers.
ASP.NET application performance counters
IPHost Network Monitor is an advanced and easy tool for monitoring LAN and WAN networks, network servers, workstations and TCP/IP devices. Use IPHost Network Monitor to monitor your servers, domains, computers and devices.