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4.2.7 Correcting inconsistent topologies
The topology must be consistent across the Cluster DB, CNM and in LNMC (on the FSP of
each node). Verify the topology by using the following lsnwtopo command (see Example 4-21
on page 257):
# lsnwtopo
The ISR network topology that is specified by the cluster configuration data is 8D.
# lsnwtopo -C
The ISR network topology in used by CNM is 8D.
Example 4-21 lsnwtopo -A showing an inconsistent topology in LNMC
# lsnwtopo -A
Frame 6 Cage 4 : Topology 8D, Supernode 51, Drawer 1
Frame 6 Cage 3 : Topology 8D, Supernode 51, Drawer 0
Frame 6 Cage 13 : Topology 8D, Supernode 5, Drawer 2
Frame 6 Cage 12 : Topology 8D, Supernode 5, Drawer 1
Frame 6 Cage 10 : Topology 8D, Supernode 4, Drawer 3
Frame 6 Cage 11 : Topology 128D, Supernode 5, Drawer 0 *RUNTIME-EXCLUDED
Frame 6 Cage 5 : Topology 8D, Supernode 51, Drawer 2
Frame 6 Cage 9 : Topology 8D, Supernode 4, Drawer 2
Frame 6 Cage 7 : Topology 8D, Supernode 4, Drawer 0
Frame 6 Cage 8 : Topology 8D, Supernode 4, Drawer 1
Frame 6 Cage 14 : Topology 8D, Supernode 5, Drawer 3
Frame 6 Cage 6 : Topology 8D, Supernode 51, Drawer 3
The outputs from these iterations of lsnwtopo indicate that the 8D topology is consistent
across the Cluster DB, CNM, and LNMC on the FSPs, except for Frame 6 Cage 11, which
shows: Frame 6 Cage 11: Topology 128D, Supernode 5, Drawer 0 *RUNTIME-EXCLUDED.
Example 4-22 on page 258 shows how to identify and correct topology inconsistencies.
Chapter 4. Troubleshooting problems
257
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