HP-UX SNAplus2 R7 NOF Programmer's Guide

NOF API Verbs
QUERY_NN_TOPOLOGY_TG
tg_errors
Total number of topology TG update inconsistencies detected by this node. This occurs when this node
attempts to update its topology database and detects a data inconsistency. This node will create a TDU with
the current RSN incremented to the next odd number and broadcast it to all adjacent network nodes.
tg_timer_updates
Total number of topology TG updates built for this node’s resource due to timer updates. Updates are sent
via TDUs to all adjacent network nodes. These updates ensure that other network nodes do not delete this
node’s resource from their topology database.
tg_purges
Total number of topology TG records purged from this node’s topology database. This occurs when a TG
record has not been updated in a specified amount of time. The owning node is responsible for broadcasting
updates for its resource that it wants kept in the network topology.
total_route_calcs
Number of routes calculated for all class of services since the last initialization.
total_route_rejs
Number of route requests for all class of services that could not be calculated since the last initialization.
total_tree_cache_hits
Number of route computations that were satisfied by a cached routing tree. This number may be greater than
the total number of computed routes, since each route may require inspection of several trees.
total_tree_cache_misses
Number of route computations that were not satisfied by a cached routing tree, so that a new routing tree had
to be built.
total_tdu_wars
Number of TDU wars the local node has detected and prevented.
3.142.4 Returned Parameters: Function Not Supported
If the verb does not execute successfully because the local node is not a network node, SNAplus2 returns the
following parameters:
primary_rc
AP_FUNCTION_NOT_SUPPORTED
The local node is not a network node. This verb can be used only at a network node.
3.142.5 Returned Parameters: Other Conditions
Appendix B, Common Return Codes lists further combinations of primary and secondary return codes that are
common to all NOF verbs.
3.143 QUERY_NN_TOPOLOGY_TG
Each network node maintains a network topology database which holds information about all the network nodes,
VRNs and network node to network node TGs in the network. QUERY_NN_TOPOLOGY_TG returns information
about the TG entries in this database.
568