X.25 Configuration 7-7
When establishing a connection to an X.25 network, you must set this parameter to DTE (the default value) if you are connecting to a X.25 service provider.
Default Inbound/Outbound Packet Size - The Inbound Packet uses the default packet size for a inbound call unless another packet size is specified. Set this value to correspond to your network subscription. The Outbound Packet determines the maximum out going data packet size when a call is established without the Flow Control Negotiation parameter. The default Outbound Packet Size should be a value that is agreed upon by the PDN and the remote DTE.
Sequencing Modulo - Control over the numbering of sequential data packets allowed in a window. Emulex X.25 only allows Modulo 8.
Default Window Size - Specifies the default value of the maximum number of sequentially numbered data packets that can be transmitted by the local DTE without receiving an acknowledgment at any given time.
When a virtual circuit is established without flow control negotiation, this value is used as an outbound window size. You should set this parameter to the value agreed upon by the PDN.
Note: The following timers and counters are not configurable.
T20 (Restart Response Timer) - Determines the amount of time, in seconds, that the local DTE waits when it issues a Restart Request packet to receive a restart confirmation or restart indication. When the time limit expires, the Restart Request packet is retransmitted.
T21 (Call Response Timer) - Specifies the amount of time, in seconds, that the DTE waits for a response to an outbound Call Request packet.
T22 (Reset Response Timer) - Specifies the amount of time, in seconds, that the DTE waits for a response to a Reset Request packet.
T23 (Clear Response Timer - Specifies the amount of time, in seconds, that the DTE waits for a response to a Clear Request packet.
T24
This timer is used to ensure that no acknowledgment is lost. If the timer expires, an RR (Receiver Ready) packet is sent.
