Delay guarantee path setting system

A delay guarantee path setting system including at least one network management node of a plurality of nodes in a network, where the plurality of nodes are connected, the network management node setting a traffic transfer path based on a delay guarantee message to request a path setting to guarantee a bandwidth and a delay in a segment connecting two of the plurality of nodes,

• the network management node comprising:
• a pre-process section defining a weighted value for each of links connecting between the plurality of nodes according to an ability to comply with a requested bandwidth and a requested delay in the delay guarantee message;
• a link information storage section storing the delay, the available bandwidth, and the weighted value for each of the links;
• and
• a path setting section selecting, upon receiving the delay guarantee message, a path to comply with the segment, the requested delay, and the requested bandwidth in the received delay guarantee message, the path having the links of the weighted value to meet a predetermined condition, and setting the path as the traffic transfer path.

A delay guarantee path setting method for setting a traffic transfer path in a network where a plurality of nodes are connected, based on a delay guarantee message to request a path setting to guarantee a bandwidth and a delay in a segment connecting two of the plurality of nodes, the delay guarantee path setting method comprising the steps of:

• defining a weighted value for each of links connecting between the plurality of nodes according to an ability to comply with a requested bandwidth and a requested delay in the delay guarantee message;
• storing the delay, the available bandwidth, and the weighted value for each of the links;
• and
• selecting, upon receiving the delay guarantee message, a path to comply with the segment, the requested delay, and the requested bandwidth in the received delay guarantee message, the path having the links of the weighted value to meet a predetermined condition to set the path as the traffic transfer path.

A delay guarantee path setting program for setting a traffic transfer path in a network where a plurality of nodes are connected, based on a delay guarantee message to request a path setting to guarantee a bandwidth and a delay in a segment connecting two of the plurality of nodes, the delay guarantee path setting program causing a computer to execute the steps of:

• defining a weighted value for each of links connecting between the plurality of nodes according to an ability to comply with a requested bandwidth and a requested delay in the delay guarantee message;
• storing the delay, the available bandwidth, and the weighted value for each of the links;
• and
• selecting, upon receiving the delay guarantee message, a path to comply with the segment, the requested delay, and the requested bandwidth in the received delay guarantee message, the path having the links of the weighted value to meets a predetermined condition to set the path as the traffic transfer path.