The current state of the CSNA slow down
condition. A channel device will turn on
the slow down bit whenever insufficient
buffering is available to receive data
from the adjacent channel device.
The values have the following meanings:
normal - Link is normal.
slowDownSent - The router has put VTAM into
a slow down state.
slowDownReceived - VTAM has put the router into
a slow down state.
slowDownSentReceived - Both VTAM and the router
are in a slow down state.