EP1047226A2
Expired / Lapsed
EP
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Communication quality assurance type network system
Assignee: Hitachi Ltd
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Filing: 2000-02-21
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Granted: —
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Expires: 2020-02-21
Abstract
Abstract A network system including at least one end node (102) connected to a network and a policy server (104). The end node (102) issues a network resource reservation request. The policy server (104) stores therein a network resource operation policy and network resource usage status information and accepts the network resource reservation request issued by the end node. Then, based on the network resource reservation request and on the stored operation policy and usage status information, the policy server determines network resource reservation and issues to an associated network device a control instruction executing the determined network resource reservation.
Inventors
- 👤 Shigeru Hitachi Ltd. Intel. Prop. Group Miyake
- 👤 Osamu Hitachi Ltd. Intel. Prop. Group Takada
- 👤 Tomoichi Hitachi Ltd. Intel. Prop. Group Ebata
- 👤 Masaotoshi Hitachi Ltd Intel Prop Group Takihiro
- 👤 Minoru Hitachi Ltd. Intel. Prop. Group Koizumi
- 👤 Toshiaki Hitachi Ltd. Intel. Prop. Group Hirata
- 👤 Koji Hitachi Ltd. Intel. Prop. Group Tsukada
- 👤 Yoshiyuki Hitachi Ltd. Intel Prop Group Kurosaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:12
CPC Classifications
H; H04; H04L; H04L47/00; H04L47/70; H04L47/82; H04L47/822; H04L41/00; H04L47/72; H04L47/724; H04L47/78; H04L47/781; H04L47/783; H04L47/785; H04L47/80; H04L47/805
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
115 words
A network system comprising: at least one end node (102) connected to a
network and having means for issuing a network resource
reservation request; and a policy server (104) connected to the network
comprising: means (210) for storing therein a network
resource operation policy and network resource usage
status information; means (304) for accepting said network resource
reservation request issued by the end node; means (305) for determining network resource
reservation, based on said network resource reservation
request and on the stored operation policy and usage
status information, and for storing the determined
network resource reservation; and means (308) for issuing to an associated
network device a control instruction executing the
determined network resource reservation.
Claim 2
Dependent Claim
51 words
The network system according to claim 1,
wherein said network resource reservation request is a
pre-reservation type resource reservation request
requesting the network resource reservation in future and said policy server (104) issues the control
instruction to the network device at a time specified by
the pre-reservation type resource reservation request.
Claim 3
Dependent Claim
40 words
The network system according to claim 1,
wherein said network resource reservation request is an
immediate type resource reservation request immediately
requesting the network resource reservation, and said policy server (104) issues the control
instruction to the network device immediately.
Claim 4
Dependent Claim
44 words
The network system according to claim 1,
wherein said means (305) for determining the network
resource reservation in said policy server (104)
determines a bandwidth to be reserved and said means (308) for issuing the control
instruction issues the control instruction reserving the
bandwidth.
Claim 5
Dependent Claim
58 words
The network system according to claim 1,
wherein said means (305) for determining the network
resource reservation in said policy server (104)
determines a route and a bandwidth to be reserved and said means (308) for issuing the control
instruction issues to the network device on the
determined route the control instruction reserving the
route and the bandwidth.
Claim 6
Dependent Claim
63 words
The network system according to claim 1,
wherein said network includes a plurality of sub-networks
each managed by the policy server (104) and, when said network resource reservation request
that has been received is associated with the sub-network
managed by an other policy server, the policy server
further comprises means (320) for issuing the network
resource reservation request to the other policy server.
Claim 7
Dependent Claim
80 words
A network resource reservation method,
comprising the steps of: storing a network resource operation policy and
network resource usage status information; accepting a network resource reservation
request issued by an end node connected to a network; determining network resource reservation, based
on said network resource reservation request and on the
stored operation policy and usage status information, and
storing the determined network resource reservation; and issuing to an associated network device a
control instruction executing the determined network
resource reservation.
Claim 8
Dependent Claim
54 words
The network resource reservation method
according to claim 7, further comprising the step of: when said network resource reservation request
does not follow the stored operation policy or when the
requested network resources cannot be reserved, informing
the end node issuing the network resource reservation
request that the network resource reservation request is
rejected.
Claim 9
Dependent Claim
99 words
A policy server connected to a network and
performing network resource reservation and management,
comprising: means (210) for storing a network resource
operation policy and network resource usage status
information; means (304) for accepting a network resource
reservation request issued by an end node connected to a
network; means (305) for determining network resource
reservation, based on said network resource reservation
request and on the stored operation policy and usage
status information, and for storing the determined
network resource reservation; and means (308) for issuing to an associated
network device a control instruction executing the
determined network resource reservation.
Claim 10
Dependent Claim
43 words
The policy server (104) according to claim 9,
wherein when a pre-reservation type resource
reservation request requesting the network resource
reservation in future is received, the policy server
issues the control instruction to the network device at a
time specified by the request.
Claim 11
Dependent Claim
35 words
The policy server according to claim 9, wherein when an immediate type resource reservation
request immediately requesting the network resource
reservation is received, said policy server issues the
control instruction to the network device immediately.
Claim 12
Dependent Claim
82 words
A network resource reservation program causing
a computer system to: store a network resource operation policy and
network resource usage status information; accept a network resource reservation request
issued by an end node connected to a network; determine network resource reservation, based
on said network resource reservation request and on the
stored operation policy and usage status information, and
to store the determined network resource reservation; and issue to an associated network device a control
instruction executing the determined network resource
reservation.
References Cited (Backward Citations)
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