User manual
Nortel Secure Router 8000 Series
Configuration -WAN Access
Issue 5.3 (
30 March 2009) Nortel Networks Inc. i
Contents
7 LAPB and X.25 configuration...................................................................................................7-1
7.1 Introduction...................................................................................................................................................7-3
7.1.1 X.25 .....................................................................................................................................................7-3
7.1.2 X.25 Principle ......................................................................................................................................7-4
7.1.3 LAPB...................................................................................................................................................7-5
7.1.4 X.25 switching function.......................................................................................................................7-6
7.1.5 X.25 load balancing .............................................................................................................................7-6
7.1.6 XOT.....................................................................................................................................................7-8
7.2 LAPB configuration......................................................................................................................................7-9
7.2.1 Establishing the configuration task ......................................................................................................7-9
7.2.2 Configuring the link layer protocol of an interface as LAPB ............................................................7-10
7.2.3 Configuring LAPB parameters ..........................................................................................................7-10
7.2.4 Checking the configuration................................................................................................................7-12
7.3 Configuring an X.25 interface.....................................................................................................................7-12
7.3.1 Establishing the configuration task ....................................................................................................7-12
7.3.2 Configuring X.25 attributes ...............................................................................................................7-13
7.3.3 Configuring X.25 interface supplementary parameter.......................................................................7-18
7.3.4 Configuring an X.25 sub-interface.....................................................................................................7-21
7.3.5 Checking the configuration................................................................................................................7-22
7.4 Configuring X.25 datagram transmission....................................................................................................7-22
7.4.1 Establishing the configuration tTask..................................................................................................7-22
7.4.2 Configuring X.25 datagram transmission ..........................................................................................7-23
7.4.3 Configuring supplementary parameters of X.25 datagram Transmission..........................................7-25
7.4.4 Configuring X.25 switching...............................................................................................................7-29
7.4.5 Checking the configuration................................................................................................................7-30
7.5 Configuring load balancing.........................................................................................................................7-31
7.5.1 Establishing the configuration task ....................................................................................................7-31
7.5.2 Enabling or disabling X.25 switching................................................................................................7-32
7.5.3 Configuring X.25 hunt group.............................................................................................................7-32
7.5.4 Configuring X.25 switching route......................................................................................................7-33
7.5.5 Checking the configuration................................................................................................................7-33
7.6 Configuring XOT........................................................................................................................................7-34