User manual

Nortel Secure Router 8000 Series
Configuration -WAN Access
Issue 5.3 (30 March 2009)
Nortel Networks Inc.
xv
Figures
Figure 3-1 CE1 interfaces binding..................................................................................................................3-31
Figure 3-2 E1 interfaces binding ....................................................................................................................3-35
Figure 3-3 Schematic diagram of CE3 interface configuration ......................................................................3-38
Figure 4-1 STM-N frame structure...................................................................................................................4-3
Figure 4-2 Process of multiplexing E1 to STM-1.............................................................................................4-4
Figure 4-3 Process of multiplexing T1 to STM-1.............................................................................................4-4
Figure 4-4 Sequence of arrangement of TUG-3, TUG-2 and TU-12 in VC-4..................................................4-5
Figure 4-5 Networking diagram of connecting routers directly through POS interfaces ...............................4-27
Figure 4-6 Networking diagram of using STM-1 CPOS interface .................................................................4-30
Figure 5-1 Networking diagram of configuring the sub-interface..................................................................5-16
Figure 5-2 Networking diagram of configuring the loopback interface .........................................................5-18
Figure 6-1 PPP link operation process..............................................................................................................6-4
Figure 6-2 Networking diagram of PAP or CHAP authentication ..................................................................6-47
Figure 6-3 Networking diagram of the MP-group binding.............................................................................6-54
Figure 6-4 Networking diagram of the MP binding .......................................................................................6-59
Figure 6-5 Networking diagram of the MP configuration ..............................................................................6-70
Figure 7-1 X.25 network model........................................................................................................................7-3
Figure 7-2 X.25 protocol Layer........................................................................................................................7-4
Figure 7-3 X.25 packet and LAPB frame.........................................................................................................7-5
Figure 7-4 Interrelationship between LAPB, X.25 and X.25 switching...........................................................7-6
Figure 7-5 Diagram of X.25 network load balancing .......................................................................................7-7
Figure 7-6 XOT typical application diagram....................................................................................................7-8
Figure 7-7 X.25 channel division ...................................................................................................................7-16
Figure 7-8 LAN interconnection through X.25 ..............................................................................................7-24
Figure 7-9 X.25 switching networking diagram.............................................................................................7-30
Figure 7-10 Direct connection between two routers through serial interfaces (LAPB)..................................7-39