Network link status monitoring service.
[scriptable, uuid(61618a52-ea91-4277-a4ab-ebe10d7b9a64)]
interface nsINetworkLinkService : nsISupports

Attributes

 This is set to true when the system is believed to have a usable
 network connection.

 The link is only up when network connections can be established. For
 example, the link is down during DHCP configuration (unless there
 is another usable interface already configured).

 If the link status is not currently known, we generally assume that
 it is up.
readonly attribute boolean isLinkUp 
 This is set to true when we believe that isLinkUp is accurate.
readonly attribute boolean linkStatusKnown