Title:
PATH CONTROL SYSTEM, CONTROL APPARATUS, EDGE NODE, PATH CONTROL METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2014/034097
Kind Code:
A1
Abstract:
A path control system, comprises: forwarding network in which each forwarding node belongs to a group and forwards a packet based on a sub-label corresponding to the group; edge node that adds a label including a plurality of sub-labels based on information contained in a received packet; and a control apparatus that performs path control of the forwarding network by controlling a combination of sub-labels added by the edge node and by controlling forwarding processing performed based on the sub-labels by the forwarding node(s). When a failure has occurred in a communication path, the control apparatus causes the edge node to change a sub-label corresponding to a failure section of the communication path in which a failure has occurred out of sub-labels added to a packet received after the failure, and causes the forwarding node(s) to forward a packet along a path that does not go through the failure section.
Inventors:
HAYASHI TAKEO (JP)
Application Number:
PCT/JP2013/005053
Publication Date:
March 06, 2014
Filing Date:
August 27, 2013
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04L45/42; H04L45/247; H04L45/28; H04L45/50; H04L45/74
Foreign References:
| JP2006295938A | 2006-10-26 | |||
| JP2006324910A | 2006-11-30 | |||
| JP2005277446A | 2005-10-06 | |||
| JP2004254328A | 2004-09-09 | |||
| JP2008219083A | 2008-09-18 |
Attorney, Agent or Firm:
KATO, Asamichi (20-12 Shin-Yokohama 3-chome, Kohoku-ku, Yokohama-sh, Kanagawa 33, JP)
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