US 8,509,083 B2 · Band management apparatus and band management method

Abstract

According to an aspect of an embodiment, a band management apparatus that manages a communication band of a transmission path between data relay devices in a ring network comprises a hypothetical network management information storage unit that stores information on the communication band set for the transmission path for each hypothetical network set in such a way as to include the data relay devices, a communication band calculator that calculates the communication band for each transmission path between neighboring data relay devices contiguously connected without sandwiching another data relay device, based on the information stored by the hypothetical network management information storage unit and a communication band setting unit that individually sets each communication band calculated by the communication band calculator as the communication band of the transmission path between the neighboring data relay devices.

Claims14

Dependent claims

A band management apparatus for a ring network including a plurality of nodes, comprising:

a storage to store first information including, for each VLAN ID (Virtual LAN IDentifier), a first node ID, which indicates a first node that transmits a packet with a VLAN ID from outside of the ring network to a receiving side node, a second node ID, which indicates a receiving side node that transmits the packet from the first node to outside of the ring network, a transmission band amount for the VLAN ID and a category of the band, and second information including a band amount for each of all spans between neighboring nodes of the ring network stored by a communication band calculator;
and
a communication band calculator that calculates the band amount for each of all spans between neighboring nodes of the ring network, based on the first information and stores the result to the storage as the second information,
wherein, the category includes a guaranteed band and a best effort band.

1 more element

A band management method for a ring network including a plurality of nodes, comprising:

storing, in a memory, first information that indicates, for each VLAN ID (Virtual LAN IDentifier), a first node ID, which indicates a first node that transmits a packet with a VLAN ID from outside of the ring network to a receiving side node, a second node ID, which indicates a receiving side node that transmits the packet from the first node to outside of the ring network, a transmission band amount for the VLAN ID and a category of the band, and second information including a band amount for each of all spans between neighboring nodes of the ring network, stored by a communication band calculator;
and
calculating at the communication band calculator the band amount for each of all spans between neighboring nodes of the ring network, based on the first information and storing the result to the memory as the second information, wherein, the category includes a guaranteed band and a best effort band.

Dependencies are inferred from the claim text.

Band management apparatus and band management method

Life of this patent

Band management apparatus and band management method

Life of this patent

Abstract

Claims14