| US 7,486,663 B2 | ||
| Remote access server wherein the number of logical link resources is set higher than the number of physical link resources | ||
| Tetsuo Matsuda, Minato-ku (Japan); Masayuki Yamada, Minato-ku (Japan); Kazuhiko Azuma, Minato-ku (Japan); and Toshikazu Maruyama, Minato-ku (Japan) | ||
| Assigned to NEC Corporation, Tokyo (Japan) | ||
| Filed on Feb. 26, 2004, as Appl. No. 10/786,364. | ||
| Claims priority of application No. 2003-055581 (JP), filed on Mar. 03, 2003. | ||
| Prior Publication US 2004/0174866 A1, Sep. 09, 2004 | ||
| Int. Cl. H04L 12/66 (2006.01) | ||
| U.S. Cl. 370—352 [370/353; 370/354; 370/355; 370/356; 370/400; 370/401] | 4 Claims |
| 1. A remote access server that is a data-link initiation reception side device that, in accordance with a connection request
that is received by way of a circuit-switching network from a terminal device, which is the data-link initiation side device,
initiates a link and connects to an Internet Service Provider (ISP) server by way of the Internet; and controls connections,
said remote access server comprising:
divided circuit resources that are provided between physical link resources to each of said terminal devices and logical link
resources to said ISP server, and
means for, upon receiving new connection requests from terminal devices, using a logical link resource and a connection identifier
that are not in current use to connect to said ISP server; and
means for, upon receiving a request from a terminal device indicating a transition to a dormant state, releasing the physical
link resource to said terminal device while maintaining the connection of the logical link resource to said ISP server without
change, and upon receiving a reconnection request that indicates a connection identifier from a terminal device, using the
logical link resource that is set to that connection identifier to implement reconnection,
wherein a logical link resource number, which is the number of said logical link resources, is set greater than a physical
link resource number, which is the number of said physical link resources.
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