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APPN 58 bytes (see note)
Note: Assumes worst case for APPN BAN where a T/R MAC address
header and LLC header are added in addition to the FR header
bytes.
If FR data encryption is enabled then you must subtract up to an additional
12 bytes.
When using Frame Relay SVCs, the maximum information field size must
be the same at both ends of the virtual circuit. To determine the maximum
information field size, subtract 16 bytes from the frame size if encryption is
enabled on the SVC and subtract 4 bytes if encryption is not enabled on
the SVC.
idle [flag or mark]
Sets the transmit idle state for HDLC framing. The default value is flag,
which provides continuous flags (7E hex) between frames. The mark option
puts the line in a marking state (OFF, 1) between frames. Mark idle causes
the transmit LED to be dark between frames. Flag idle partially lights the
transmit LED between frames.
ir-adjustment
increment-% decrement-% minimum-IR
Sets the minimum information rate (IR) and the percentages for
incrementing and decrementing the IR in response to network congestion.
The minimum IR, expressed as a percentage of CIR, is the lower limit of
the information rate. The minimum percentage is 1 and the maximum
percentage is 100. The default is 25.
When network congestion clears, the information rate is gradually
incremented by the IR adjustment increment percentage until the maximum
information rate is reached. The minimum percentage is 1 and the
maximum percentage is 100. The default is 12.
When network congestion occurs, the information rate is decremented by
the IR adjustment decrement percentage each time a frame containing
BECN is received until the minimum information rate is reached. The
minimum percentage is 1, and the maximum percentage is 100. The default
is 25.
Example:
set ir-adjustment
IR adjustment % increment [12]?
IR adjustment % decrement [25]?
Minimum IR as % of CIR [25]?
line-speed
rate
For internal clocking, this command specifies the speed of the transmit and
receive clock lines. The range is 2400 to 2 048 000 bps.
For external clocking, this command does not affect the hardware (in other
words, the actual speed of the line) but it sets the speed of some protocols,
such as IPX, used to determine routing cost parameters. Congestion
monitoring also uses the configured line speed to determine the maximum
information rate. Therefore, it is recommended that you set the speed to
match the actual line speed. If the speed is not configured, the protocols
and congestion monitoring assume a speed of 1 000 000 bps.
Notes:
1. When using external clocking, the maximum line speed is 6 312 000.
2. When using internal clocking, the maximum line speed is 2 048 000.
Configuring Frame Relay Interfaces
430
MRS V3.2 Software User’s Guide
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