Network apparatus and method of monitoring processor
To detect a failure in each processor core appropriately. It is provided a network apparatus for transferring a packet, comprising: a control unit; and a network processor including a plurality of processor cores, each configured to perform a process of transferring a packet input over a network. The control unit being configured to: transmit a packet to the network processor; acquire a packet processing status of each of the plurality of processor cores; and monitor a status of the each of the plurality of processor cores based on the acquired packet processing status.
1. A network apparatus for transferring a packet, comprising:
a control unit; and
a network processor including a plurality of processor cores, each configured to perform a process of transferring a packet input over a network,
the control unit being configured to:
transmit a packet to the network processor;
acquire a packet processing status of each of the plurality of processor cores; and
monitor a status of the each of the plurality of processor cores based on the acquired packet processing status.
2. The network apparatus according to claim 1 , wherein the network processor stores the packet transmitted from the control unit in a predetermined queue.
3. The network apparatus according to claim 2 , wherein the control unit is further configured to:
transmit a health-check packet to the network processor;
acquire statistic information on a process for the health-check packet performed by the each of the plurality of processor cores; and
monitor the status of the each of the plurality of processor cores based on the acquired statistic information.
4. The network apparatus according to claim 3 , wherein the network processor stores the health-check packet in a lowest priority queue, and performs burst transmission of health-check packets stored in the lowest priority queue to the each of the plurality of processor cores.
5. The network apparatus according to claim 3 , wherein the network processor updates statistic information on the received health-check packet, and discards the received health-check packet.
6. The network apparatus according to claim 2 , wherein:
the control unit transmits a health-check packet to the network processor;
the each of the plurality of processor cores generates a packet to be returned to the control unit; and
the control unit is further configured to:
monitor the packet returned from the each of the plurality of processor cores; and
monitor the status of the each of the plurality of processor cores based on a return status of the packet.
7. The network apparatus according to claim 6 , wherein the network processor stores the health-check packet in a highest priority queue, and transmits the health-check packet stored in the highest priority queue to a processor core specified for each health-check packet.
8. The network apparatus according to claim 7 , wherein:
the control unit generates a health-check packet to be transmitted to another network apparatus; and
the network apparatus is configured to:
generate a return packet in response to a received health-check packet in case where a destination of the received health-check packet is a local network apparatus; and
transmit the generated return packet to a network apparatus that has transmitted the received health-check packet.
9. A method of monitoring a processor in a network apparatus for transferring a packet,
the network apparatus including
a control unit and
a network processor including a plurality of processor cores, each configured to perform a process of transferring a packet input over a network,
the method comprising steps of:
transmitting, by the control unit, a health-check packet to the network processor;
acquiring, by the control unit, a health-check packet processing status of each of the plurality of processor cores; and
monitoring, by the control unit, a status of the each of the plurality of processor cores based on the acquired health-check packet processing status.