Type P (APPN Topology) Entry

Type P entries for APPN Topology records are described in the following table. These entries contain 88 bytes.

Length

Offset

Type

Description

4

0

N

Number of routes calculated using an existing tree

4

4

N

Number of routes calculated using a modified tree

4

8

N

Number of routes calculated using a new tree

4

12

N

Number of topology database updates (TDUs) originated by this node

4

16

N

Number of TDUs propagated by this node

4

20

N

Number of TDUs received by this node resulting in a topology database update

4

24

N

Number of TDUs received by this node and discarded by this node for normal reasons. Resource sequence number (RSN) is valid, but data already seen

4

28

N

Number of TDUs received by this node and discarded because the RSN is not valid. (TDU is rebroadcast)

4

32

N

Number of TDUs received by this node and discarded because of data inconsistency. (TDU is rebroadcast)

4

36

N

Number of network nodes in the topology database

4

40

N

Number of end nodes in the topology database

4

44

N

Number of unidirectional TGs in the topology database

4

48

N

Number of TG failures at this node

4

52

N

Number of dynamic PU allocations

4

56

N

Number of times a routing tree was discarded due to the tree cache becoming full

4

60

N

Current number of trees in the tree cache

4

64

N

Number of virtual nodes in the topology database

4

68

N

Number of central directory server nodes in the topology database

4

72

N

Number of interchange nodes in the topology database

4

76

N

Number of end nodes connected to this node

4

80

N

Number of network nodes connected to this node

4

84

N

Number of virtual nodes connected to this node


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