A-2
ATM Switch Router Software Configuration Guide
OL-7396-01
Appendix
Adding a Higher Level of PNNI Hierarchy
You can convert the network to a single hierarchical PNNI routing domain by configuring a second level
of hierarchy in each peer group and converting the IISP interface to a PNNI interface, as shown in
Figure A-2.
Figure A-2 Two-Level PNNI Hierarchical Network
The initial configuration for each ATM switch router is shown in the sections that follow. The commands
used to migrate the network to a two-level PNNI hierarchical network ( shown in Figure A-2) are also
provided.
Switch T1 Initial Configuration
The initial configuration for switch NewYork BldB.T1 follows:
hostname NewYork.BldB.T1
atm address 47.0091.4455.6677.1144.1011.1233.0060.3e7b.3a01.00
atm router pnni
node 1 level 72 lowest
redistribute atm-static
Switch T2 Initial Configuration
The initial configuration for switch NewYork BldB.T2 follows:
hostname NewYork.BldB.T2
atm address 47.0091.4455.6677.1144.1011.1244.0060.3e5b.bc01.00
atm router pnni
node 1 level 72 lowest
redistribute atm-static
SanFran.BldA.T4
T4
SanFran.BldA.T5
T5
NewYork.BldB.T2
NewYork.BldB.T1
T2
T1
NewYork.BldB.T3
T3
IIsp
Level 72
Level 56
10220
SanFran NewYork
*
*
Uplinks
Induced horizontal links
Logical group nodes (LGNs)
Peer group leaders (PGLs)
*