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Max Link Latency (ms)
(0=none)
Determines how many bytes can be queued on a WAN link (expressed in
milliseconds). For a detailed description, refer to ‘‘Max Link Latency (ms) (0=none)’’
on page -.
Max Queue Size
Sets the maximum size (in packets) of the transmit queue of each individual X.25
virtual circuit. If the value specified by Max Queue Size is exceeded, the router drops
the oldest packet(s) in the transmit queue.
Default: 10
Range: 1 to 999
Min Frame Spacing
Sets the minimum number of flag sequences prefixed to an X.25 packet.
As is the HDLC packet, an X.25 frame is prefixed by a variable number of 8-bit flag
sequences, and is terminated by a single instance of the same flag. Therefore, the
number of flags transmitted between sequential frames is equal to the constant 1 (the
trailing flag) plus the (variable) number of leading flags.
After determining the minimum number of flags to prefix to each frame, reduce this
number by 1 (to account for the terminating flag).
Default: 2
Range: 2 to 62 (even values only)
Min Idle Time (secs)
Sets the minimum period of circuit inactivity (no IP datagrams sent to or received
from IP Address) before a circuit can be cleared and reused for a call to another
destination. A value of 0 (implying an infinite idle time) prevents a connection to IP
Address from ever being cleared once such a connection is established.
Default: 10 (seconds)
Range: 0 to 9999
MTU Size
Sets the maximum number of bytes in a packet delivered to the X.25 PDN service
from an upper level redirecting protocol. It facilitates X.25 PDN service if the remote
end of the virtual circuit requires a specific data packet length.
Allowable values are in the range up to 1600 bytes (the largest packet sent by an
upper level redirecting protocol to X.25 PDN). Should you enter a value greater the
1600, X.25 enforces the upper boundary limit.
Default: 590
Range: 0 to 1600
Note: Ensure that the value you enter at MTU Size is equal to or greater than the
value specified at Pkt Size.
X.25 Service
Parameters
13
X.25 Service Parameters
Parameters and Options
13-9