Nortel Networks 8000 - Manual (Page 9)

6.10.3 Disabling the re-group of the fragments of the MP packets........................................................ 6-43
6.10.4 Configuring the packet order guarantee function on the MP-group interface............................. 6-44
6.10.5 Checking the configuration.......................................................................................................... 6-45
6.11 Maintaining PPP and MP........................................................................................................................6-46
6.12 Configuration examples..........................................................................................................................6-47
6.12.1 Example for configuring PAP authentication................................................................................ 6-47
6.12.2 Example for configuring unidirectional CHAP authentication.................................................... 6-50
6.12.3 Example for configuring bidirectional CHAP authentication...................................................... 6-52
6.12.4 Example for binding MPs into the MP-group............................................................................... 6-54
6.12.5 Example for configuring MP direct binding using the VT...........................................................6-59
6.12.6 Example for configuring MP authentication binding using the VT............................................. 6-62
6.13 Troubleshooting......................................................................................................................................6-68
6.13.1 Physical link is not in the up state..................................................................................................6-68
6.13.2 Link is always in the down state.................................................................................................... 6-69
6.13.3 CHAP authentication of a PPP link fails....................................................................................... 6-69
6.13.4 MP configured through the VT works abnormally........................................................................6-70
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
Nortel Secure Router 8000 Series
Configuration -WAN Access_____________________________________________________________________________
Issue 5.3 (30 March 2009) Nortel Networks Inc. Vii