Manual

7.6.1 Establishing the configuration task.....................................................................................................7-34
7.6.2 Starting X.25 switching......................................................................................................................7-34
7.6.3 Configuring local switching (SVC).................................................................................................. 7-35
7.6.4 Configuring XOT route.....................................................................................................................7-35
7.6.5 Configuring optional keepalive and Xot-source attributes.................................................................7-36
7.6.6 Checking the configuration...............................................................................................................7-37
7.7 Maintaining LAPB and X.25......................................................................................................................7-37
7.7.1 Clearing the serial interface LAPB statistics......................................................................................7-37
7.7.2 Debugging X.25................................................................................................................................7-38
7.8 Configuration examples............................................................................................................................. 7-38
7.8.1 Example for configuring LAPB......................................................................................................... 7-39
7.8.2 Example for directly connecting two routers by Using X.25.............................................................7-41
7.8.3 Example for connecting routers to an X.25 public packet network ................................................... 7-44
7.8.4 Example for configuring the VC range.............................................................................................. 7-48
7.8.5 Example for transmitting IP datagrams through X.25 PVC...............................................................7-50
7.8.6 Example for configuring X.25 sub-interfaces...................................................................................7-52
7.8.7 Example for configuring the SVC function of XOT.........................................................................7-57
7.8.8 Example for configuring the PVC function of XOT.........................................................................7-61
7.8.9 Example for configuring the X.25 load balancing ............................................................................. 7-65
7.8.10 Example for configuring the X.25 load balancing carrying IP Datagrams ...................................... 7-69
7.8.11 Example for configuring the TCP/IP header compression...............................................................7-73
7.9 Troubleshooting..........................................................................................................................................7-75
7.9.1 LAPB is always disconnected...........................................................................................................7-75
7.9.2 LAPB protocol is up, VC cannot be established................................................................................ 7-75
7.9.3 X.25 Protocol cannot enter the up status............................................................................................7-76
7.9.4 X.25 Protocol is up, VC cannot be established.................................................................................. 7-76
7.9.5 Frequently reset or cleared during data transmission.........................................................................7-77
7.9.6 Request to set PVCs is rejected.........................................................................................................7-77
7.9.7 After SVC application of XOT is configured, the ping fails ............................................................ 7-78
7.9.8 After PVC application of XOT is configured, the ping fails ............................................................ 7-78
Nortel Secure Router 8000 Series
______________________________________________________________________ Configuration -WAN Access
Nortel Networks Inc. Issue 5.3 (30 March 2009)