This host is a Cabletron switch and is running Cabletron WebView. This web software provides a graphical, real-time representation of the front panel on the switch. This graphic, along with additionally defined areas of the browser interface, allow you to interactively configure the switch, monitor its status, and view statistical information. An attacker can use this to gain information about this host.
Depending on the location of the switch, it might be advisable to restrict access to the web server by IP address or disable the web server completely.