Following is a list of hierarchical routing/addressing related commands
used in simulation scripts:
$ns_ set-address-format hierarchical
This command was used to setup hierarchical addressing in . However with
the recent changes in node APIs, this command has been replaced by
ns_ node-config -addressType hierarchical
This creates a default topology of 3 levels of hierarchy, assigning 8 bits
to each level.
$ns_ set-address-format hierarchical nlevels #bits in level1....#bits in level n
This command creates a hierarchy of <nlevels> and assigns the bits in each level
as specified in the arguments.
AddrParams set domain_num_ \
AddrParams set cluster_num_ \
AddrParams set nodes_num_ \
The above APIs are used to specify the hierarchical topology, i.e the number of
domains, clusters and nodes present in the topology. Default values used by
AddrParams (i.e if nothing is specified) provide a topology with a single
domain with 4 clusters, with each cluster consisting of 5 nodes.
Internal procedures:
$Hiernode_ add-hroute dst target
This procedure is used to add next-hop entries of a destination <dst> for a
given <target>. Since hier-nodes have multiple classifiers, one for each level
of hierarchy, add-hroute populates hier-classifiers correctly and should be
used in place of add-route used for flat-routing.
$hiernode_ split-addrstr str
This splits up a hierarchical adrress string (say a.b.c) into a list of
the addresses at each level (i.e, a,b and c).
