IP Library Granted Patent US 10,735,276
Granted Patent B2
US 10,735,276 · App. 16/084,672 · Granted Aug 4, 2020

Server, communication method, and recording medium

Inventors: Keisuke Torigoe (Tokyo, JP); Masanori Takashima (Tokyo, JP)
Assignee: NEC CORPORATION
H04L41/22H04L41/0672H04L41/0806H04L41/0873H04L41/12H04L45/02H04L45/28H04L45/32H04L45/38H04L45/50H04L45/64H04L49/25H04L49/254
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Quick Facts
Patent No.
US 10,735,276
App. No.
16/084,672
Granted
Aug 4, 2020
Kind
B2
Abstract

A server according to the present invention includes: a memory; and at least one processor coupled to the memory, the processor performing operations, the operations includes: storing topology information indicating a topology of a network composed of a plurality of switches; generating network route information indicating a communication route on the network based on the topology information; acquiring, from the switch, a transfer entry learned by the switch based on switch route information indicating a broadcast domain to that a port of the switch included in the network belongs; and mapping the transfer entry and the network route information to the topology information.

Claims (36)

1. A server comprising:

a memory; and

at least one processor coupled to the memory,

the processor performing operations, the operations comprising:

storing topology information indicating a topology of a network composed of a plurality of switches;

generating network route information indicating a communication route on the network based on the topology information;

acquiring, from a switch, among the plurality of switches, a transfer entry learned by the switch based on switch route information indicating a broadcast domain to which a port of the switch included in the network belongs; and

mapping the transfer entry and the network route information to the topology information.

2. The server according to claim 1 , wherein

the operations further comprises

generating the network route information based on the topology information and the switch route information.

3. The server according claim 1 , wherein

the transfer entry is learned of association between an address of a destination and the port for output to the destination by the switch based on the switch route information.

4. The server according to claim 1 , wherein

the operations further comprises

when there is no consistency between the transfer entry collected and the network route information, determining that an error occurs in the network.

5. The server according to claim 4 , wherein

the operations further comprises

when the mapping means determines that an abnormality occurs in the network, instructing the switch to delete the transfer entry.

6. The server according to claim 1 , wherein

the operations further comprises

acquiring the switch route information from the switch along with the transfer entry.

7. The server according to claim 1 , wherein

the network is a U/C separation network in that a user plane and a control plane are separated, and

the operations further comprises

setting the switch route information in the switch.

8. A communication method for a server comprising:

storing topology information indicating a topology of a network composed of a plurality of switches;

generating network route information indicating a communication route on the network based on the topology information;

acquiring, from a switch, among the plurality of switches a transfer entry learned by the switch based on switch route information indicating a broadcast domain to which a port of the switch included in the network belongs; and

mapping the transfer entry and the network route information to the topology information.

9. A computer-readable non-transitory medium having a computer readable program recorded thereon, wherein the computer readable program, when executed on a computer, causes the computer to:

store topology information indicating a topology of a network composed of a plurality of switches;

generate network route information indicating a communication route on the network based on the topology information;

acquire, from a switch, among the plurality of switches a transfer entry learned by the switch based on switch route information indicating a broadcast domain to which a port of the switch included in the network belongs; and

map the transfer entry and the network route information to the topology information.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2026
From: NEC CORPORATION
To: NEC ASIA PACIFIC PTE LTD.
Reel/Frame 074814/0461 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 13, 2018
From: TORIGOE, KEISUKE; TAKASHIMA, MASANORI
To: NEC CORPORATION
Reel/Frame 047066/0027 →
Priority Claims (1)
JP 2016-128354 · Jun 29, 2016 · national
Continuity (1)
Related Publication 20190081866A1 · Mar 14, 2019
Cited By (1)
US 12,381,809