isSendBacklogged property
bool
get
isSendBacklogged
True while bytes accepted by send exceed the transport's high-water mark and have not yet been handed to the OS — the peer (or the pipe to it) has stalled. Hosts defer frame PRODUCTION while this is true. A live session never selectively drops accepted frames (the wire protocol's diffs are only valid against the exact previous frame the peer holds); exceeding a transport hard bound fails the whole session closed.
Implementation
bool get isSendBacklogged;