set [node node-id] nsp ... Modifies the attributes of the nsp entity. The modifiable attributes and their data types [in brackets] are: congestion avoidance [boolean] delay factor [integer] delay weight [integer] flow control policy [segment flow control|no flow control] keepalive time [seconds] maximum remote nsaps [integer] maximum receive buffers [integer] (OpenVMS) maximum transport connections [integer] retransmit threshold [integer]
1 – congestion_avoidance
Default: False Value: True or false Enables the use of the automatic congestion avoidance mechanism. This mechanism reduces the transport window size in response to an indication from the Network layer. set [node node-id] nsp congestion avoidance boolean Example: set nsp congestion avoidance false
2 – delay_factor
Default: 2 Value: 2-15 Factor by which to multiply the current value of the roundtrip delay estimate status attribute in order to set a value for the retransmission timer. Note, the roundtrip delay estimate is an attribute of the nsp port entity. set [node node-id] nsp delay factor integer Example: set nsp delay factor 2
3 – delay_weight
Default: 3 Value: 0-255 Relative weighting to apply to the current estimate and to a new sample when estimating roundtrip delay. set [node node-id] nsp delay weight integer Example: set nsp delay weight 3
4 – flow_control_policy
Default: Segment flow control Value: Segment flow control or no flow control Determines NSP flow control policy used. This attribute may not be changed when NSP state is "on." Flow control is the mechanism that determines when to send a Data or expedited messages. Flow control is performed separately for normal and expedited data. During transport connection formation, each end of the connection determines the kind of flow control policy it expects when acting as a data receiver. It is not required that both end operate with the same flow control policy. set [node node-id] nsp flow control policy control-policy Examples: set nsp flow control policy segment flow control set nsp flow control policy no flow control
5 – keepalive_time
Default for Tru64 UNIX: 30 Value: 1-65535 Default for OpenVMS: 60 Value: 1-65535 Time, in seconds, that NSP waits for data to be transmitted or received before testing a transport connection. When this timer expires, NSP sends a data request PDU to the remote NSP. This PDU does not change the flow control parameters, but does require acknowledgment. For Tru64 UNIX, You can modify this characteristic to a lower value only when the entity is disabled. set [node node-id] nsp keepalive time integer Example: set nsp keepalive time 60
6 – maximum receive buffers (OpenVMS)
Default: 2000 Value: 1-65535 Maximum number of receive buffers that can store received transport PDUs. You may not decrease the value while NSP is enabled. set [node node-id] nsp maximum receive buffers integer Example: set nsp maximum receive buffers 4000
7 – maximum_remote_nsaps
Default for Tru64 UNIX: 160 Value: 1-65535 Default for OpenVMS: 201 Value: 1-65535 Maximum number of remote NSAPs that can exist concurrently. Must be equal to or greater than the default, which equals the current value of maximum transport connections. You can modify this characteristic to a lower value only when the entity is disabled. set [node node-id] nsp maximum remote nsaps integer Example: set nsp maximum remote nsaps 201
8 – maximum_transport_connections
Default for Tru64 UNIX: 128 Value: 0-1023 Default for OpenVMS: 200 Value: 0-65535 Maximum number of active transport connections allowed at one time. Must not be less than the current value of maximum remote NSAPs. You may not decrease the value while NSP is enabled. set [node node-id] nsp maximum transport connections integer Example: set nsp maximum transport connections 200
9 – retransmit_threshold
Default: 12 Value: 1-65535 Maximum number of times a source nsp entity is to restart an expired retransmission timer before the remote node is to be considered unreachable. When the threshold is reached, NSP sets the confidence variable to false. set [node node-id] nsp retransmit threshold integer Example: set nsp retransmit threshold 12