Patent ID: 8897126
Filing Date: 2014-11-25
Classification: H04L

Abstract:
1. A communication apparatus comprising: a switch part for switching passageways of traffic; and an apparatus control part for controlling the switch part, wherein the apparatus control part includes a protocol processing part operated by prescribed control software and a volatile storing part for saving information held at the protocol processing part; and the switch part comprises a control part for controlling a built-in switch circuit part according to a request from the apparatus control part and a nonvolatile storing part for storing a connection state of the built-in switch circuit part, wherein the apparatus control part has a storing part for storing defining information for setting a priority order among paths to be recovered, and an order determining device for rebuilding a plurality of the paths sent from adjacent apparatuses to the protocol processing part in the order of priority defined by the defining information in the storing part, when the apparatus control part recovers from trouble, wherein: the protocol processing part comprises an information delaying device which, when a trouble occurs, delays information of the trouble; and the apparatus control part has a function of rebuilding, after starting the apparatus control part, path information of a plurality of paths stored in the volatile storing part, which is lost in restart of the apparatus control part or updating the control software, based on I/F information held at the nonvolatile storing part of the switch part, and information of the plurality of paths transmitted from the adjacent apparatuses, and has a function of notifying the trouble information delayed by the information delaying device to other adjacent apparatuses after completing the rebuilding, and of recovering the trouble.