A bandwidth management apparatus determines, when a call whose communication
information
is to be transmitted as a sequence of datagrams is assigned, a link to be used
for transmitting the communication information, judges whether there exists a surplus
bandwidth in sections of the determined link, and allocates the call to a bandwidth
necessary for transmitting the communication information when the judgement result
is true, and informs a node that is involved in call setup for the call about the
judgement result. Also disclosed are an address resolution assistance apparatus
that cooperates with the bandwidth management apparatus, a band managing method,
and an address resolution assisting method which realize the respective apparatuses.
In a network to which the invention is applied, good speech quality can be stably
maintained irrespective of its configuration and scale.
