Method and device for establishing a route of a connection

A method for establishing a route of a connection, comprising:

• configuring a route relation group on a service node responsible for route calculation, the route relation group comprising a connection in which the service node is contained and other connections having route relation with the connection;
• and
• when a route of a connection is requested to be established, the service node responsible for route calculation confirming the route of the connection according to the route relation group configured on the service node, and then establishing the route of the connection,
• wherein the step of confirming the route of the connection specifically comprises:
• after receiving a route establishment request of the connection, the service node responsible for route calculation calculates the route of the connection to obtain route resource information;
• a specific route relation group which the connection belongs to is determined according to the route resource information and information of the route relation group configured on the service node;
• via a route confirmation request, the calculated route resource information is sent to service nodes of other connections in the specific route relation group which are responsible for route calculation;
• the service nodes of other connections responsible for route calculation respectively confirm whether the route of the connection can be established, and return a result of the confirmation to the service node receiving the route establishment request and responsible for route calculation;
• and
• the service node receiving the route establishment request and responsible for route calculation determines whether to establish the route of the connection according to the result of the confirmation.

A device for establishing a route of a connection, comprising:

• a route relation management module, used for configuring a route relation group on a service node responsible for route calculation, the route relation croup comprising a connection in which the service node is contained and other connections having route relation with the connection;
• a determining module, used for confirming a route of a connection according to the route relation group configured on the service node responsible for route calculation when the route of the connection is requested to be established;
• a route establishment module, used for establishing the route of the connection according to a result of the confirmation;
• a transceiver module, used for receiving a route establishment request of a connection when a route of the connection is requested to be established, and sending, via a route confirmation request, route resource information of the connection to service nodes of other connections in a specific route relation group which are responsible for route calculation;
• and
• a route calculation module, used for calculating the route of the connection according to the route establishment request of the connection to obtain route resource information and determining the specific route relation group which the connection requesting the establishment of the route belongs to.