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Minimum connect
duration (sec)
Sets the total time to keep the connection open even if no further data is expected.
(This parameter is also disabled when you set the Connect when parameter to
Circuit is enabled.)
Default: 180
Disable: 0
Range: 0 to 64800 (seconds)
This parameter lets you keep a line open for the minimum period that you are
charged for a call. This reduces overall line charges by keeping a line open for
subsequent transmissions at a lower line rate than if an initial call is terminated, then
followed by another call. If a data flow interrupts a period of inactivity within the
Minimum connect duration time, then the connection remains open for at least one
Connect inactivity time period after the Minimum connect duration elapses (that is,
after the Minimum connect duration time expires).
Minimum Frame
Spacing
Used with the HP Point To Point circuit type to specify the minimum number of 8-bit
flag sequences prefixed to an HDLC packet transmitted by the router. You can
choose any even-numbered value from 2 to 62. The packet ends with a single
instance of the same flag. The total number of flags transmitted between sequential
packets includes the trailing flag and the variable number of leading flags.
Default: 2
Range: Even numbers from 2 to 62
Note: The default setting (2) is the required setting for a circuit connecting to an HP
remote bridge.
Modulus
Specifies the length, in bits, of the HDLC packet control field. The size of the control
field determines the maximumnumber of unacknowledged packets that may be
pending at any one time. The format of the entire HDLC frame, including the control
field, is illustrated in figure 4-2, below.
Default: 8
8
Selects an 8-bit control field, providing three bits for message sequencing and
allowing for a maximum of seven unacknowledged packets.
Note: The default of 8 is the required setting for connecting an HP Remote Bridge.
128
Selects a 16-bit control field, providing seven bits for sequencing and allowing a
maximum of 127 unacknowledged packets.
Circuit
Parameters
4
Circuit Parameters
Parameters and Options
4-21