Frame transmission apparatus and method for checking normality

A frame transmission apparatus, comprising:

• a plurality of ports;
• and
• a monitoring unit configured to check the normality of the frame transfer state within the apparatus by transferring a predetermined maintenance management frame from a first port to a second port within the apparatus, wherein,
• when the second port is a logical port configured by logically bundling a plurality of physical ports by link aggregation, the monitoring unit selects each of the plurality of physical ports as a transmission destination port and transfers a plurality of maintenance management frames from the first port to the plurality of physical ports.

A frame transmission apparatus, comprising:

• a plurality of ports;
• and
• a monitoring unit configured to check the normality of the frame transfer state within the apparatus by transferring a predetermined maintenance management frame from a first port to a second port within the apparatus, wherein,
• when each of the first port and the second port is a logical port configured by logically bundling a plurality of physical ports by link aggregation, the monitoring unit selects each of a plurality of physical ports belonging to the first port as a transmission source port, selects each of a plurality of physical ports belonging to the second port as a transmission destination port, and transfers a plurality of maintenance management frames so as to cover all the combinations of a transmission source physical port and a transmission destination physical port.

A frame transmission apparatus, comprising:

• a plurality of ports;
• and
• monitoring unit configured to check the normality of the frame transfer state within the apparatus by transferring a predetermined maintenance management frame from a first port to a second port within the apparatus, wherein:
• the first port is a logical port configured by logically bundling a plurality of physical ports by link aggregation;
• and,
• when receiving, from a maintenance person, designation of a specific physical port among the plurality of physical ports as the transmission source port of the maintenance management frame, the monitoring unit transfers the maintenance management frame from the specific physical port to the second port.

A frame transmission apparatus, comprising:

• a plurality of ports;
• and
• a monitoring unit configured to check the normality of the frame transfer state within the apparatus by transferring a predetermined maintenance management frame from a first port to a second port within the apparatus, wherein:
• the second port is a logical port configured by logically bundling a plurality of physical ports by link aggregation;
• and,
• when receiving, from a maintenance person, designation of a specific physical port among the plurality of physical ports as the transmission destination port of the maintenance management frame, the monitoring unit transfers the maintenance management frame from the first port to the specific physical port.

A frame transmission apparatus, comprising:

• a plurality of ports;
• and
• a monitoring unit configured to check the normality of the frame transfer state within the apparatus by transferring a predetermined maintenance management frame from a first port to a second port within the apparatus, wherein:
• each of the first port and the second port is a logical port configured by logically bundling a plurality of physical ports by link aggregation;
• and,
• when receiving, from a maintenance person, designation of a specific physical port in one of the first port and the second port as the transmission source port or the transmission destination port of the maintenance management frame, the monitoring unit transfers a plurality of maintenance management frames so as to cover all the combinations of the specific physical port designated by the maintenance person and one of a plurality of physical ports belonging to the other logical port for which no designation is provided.

A frame transmission apparatus, comprising:

• a plurality of ports;
• and
• a monitoring unit configured to check the normality of the frame transfer state within the apparatus by transferring a predetermined maintenance management frame from a first port to a second port within the apparatus, wherein:
• each of the first port and the second port is a logical port configured by logically bundling a plurality of physical ports by link aggregation;
• and,
• when receiving, from a maintenance person, designation of a specific physical port among a plurality of physical ports belonging to the first port as the transmission source port of the maintenance management frame and designation of a specific physical port among a plurality of physical ports belonging to the second port as the transmission destination port of the maintenance management frame, the monitoring unit transfers the maintenance management frame from the transmission source physical port to the transmission destination physical port as designated by the maintenance person.