Monitoring apparatus and method for determination of location of packet loss

摘要

A monitoring apparatus includes a memory, and a processor coupled to the memory and configured to receive plural acknowledgment packets each including an identifier for identifying a packet and information indicating selective acknowledgment which are transmitted from a reception node that has received a data packet transmitted from a transmission node via a network to the transmission node via the network, and determine that a data packet loss occurs in the reception node in a case where a first identifier and first information included in a first acknowledgment packet among the plural acknowledgment packets are respectively matched with a second identifier and second information included in a second acknowledgment packet received after the first acknowledgment packet among the plural acknowledgment packets.

主权项

1. A monitoring apparatus, comprising:
a memory; and a processor coupled to the memory and configured to:
receive plural acknowledgment packets each including an identifier for identifying a packet and information indicating selective acknowledgment which are transmitted from a reception node that has received a data packet transmitted from a transmission node via a network to the transmission node via the network,determine that a data packet loss occurs in the reception node when a first identifier and first information included in a first acknowledgment packet among the plural acknowledgment packets are respectively matched with a second identifier and second information included in a second acknowledgment packet received after the first acknowledgment packet among the plural acknowledgment packets,determine that the data packet loss occurs in the network when the first identifier is matched with the second identifier and the first information is different from the second information,count up a number of the packet loss occurring in the reception node and in the network, andoutput the counted-up number of packet loss occurring in the reception node and in the network,wherein transmission buffer capacity and reception buffer capacity of a network device that relays the packet in the network are increased when the data packet loss occurs in the network.