johnforecast / raspbiandecnet Goto Github PK

The outgoing timer is started when this node receives a Connect-Initiate Ack and transitions to the DN_CD state. If this timer expires before the link transitions to the RUN state or the link is disconnected, the link will be disconnected. This timer detects:

• Remote node crash or network path lost after the CI-Ack has been sent
• The remote object misbehaves and the remote system does not implement an incoming timer

On VMS this timer has a value of 60 seconds.

This timer is started when the connection information is passed to the target object. If the timer expires before an accept or reject is issued by the target object, the link will be diconnected with an "Object not responding" error. This timer detects:

• A malfunctioning object implementation

VMS implements this timer with a default value of 45 seconds.

The NSP level code requests the "Return to Sender" flag on Connect Initiate and Retransmitted Connect Initiate messages. The routing layer incorrectly clears the "Return to Sender" flag in dn_output().

When accessing a file from VMS it seems to force the file name to all lower case:

1. If system.map exists then:

    type linux"user pwd"::"system.map"
   

   works.

2. If System.map exists then:

    type linux"user pwd"::"System.map"
   

   fails with "file not found"

The current code will issue a single retransmission of CI and CC messages but does not destroy the logical link. Need to add code which generates more (4?) restransmissions. After the last retransmission has timed out the link should be put in the "No Commumnications" state and the socket becomes "Unconnected".