Request reverse charging while initiating a call

Request throughput-level negotiation while initiating a call

Network user ID

X.25 facility facility-number window size in-size out-size

X.25 facility facility-number reverse

X.25 facility facility-number throughput in out

X.25 facility facility-number throughput in out

x25 t21 – set DTE call request retransmission timer

x25 t22 – set DTE reset request retransmission timer

x25 t23- set DTE clear request retransmission timer

x25 r20 – set the maximum number of the timeout (restart) x25 r22 – set the maximum number of the timeout (restore) x25 r23- set the Maximum number of the timeout (clear) x25 pvc – create a permanent virtual circuit

x25 idle – specify the maximum idle time on interface

Two routers connected with cable

Figure 1-14 Two routers connecting

Router1dce s1:10.1.1.1/16

X.121 87654321

X.121 12345678

Router2dte s1:10.1.1.2/16

router configuration：(Use DCE cable) Router1：

interface serial 1 encapsulation x25 dce

ip address 10.1.1.1 255.255.0.0

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