3Com CoreBuilder 7000, Руководство по эксплуатации

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PNNI Routing 83
the hierarchy). Table 21 shows the updated topology database that node
A.1.2 will have after receiving this new information.
Table 21
Updated Database for Node A.1.2
Uplinks in a
Hierarchical Structure
When a hierarchy is created, uplinks from the lowest level to the higher
levels are created. An uplink is a link from a node in the lower level of
hierarchy to a logical group node in a higher level. This link represents the
connection from the border node to its neighbor. Uplinks are shown for
the second level hierarchy group A in Figure 24.
Figure 24 Uplinks in a Hierarchy
Node ID Description
A.1.2 Myself
A.1.3 My neighbor
A.1.1 A member of my group
A.2 A group connected to A.1 accessed by node A.1.2
A.3 A group connected to A.1 accessed by nodes A.1.2 and A.1.3
B A group connected to A accessed by groups A.2 and A.3
C A group connected to Group B
Logical Uplink
Logical Link
Physical Link
Parent
Children