Method and apparatus for managing diameter routing

A network apparatus, comprising:

• a processor configured to record routing status from the network apparatus to a destination node, wherein communications between the network apparatus and the destination node are through a network element in the Diameter network and the network element forwards the first Diameter message from the network apparatus to the destination node;
• a receiver configured to receive a first Diameter message configured to be delivered to a destination node;
• wherein the processor is further configured to determine a routing status of a primary routing from the network apparatus to the destination node, according to the recorded routing status;
• and
• the network apparatus further comprises a sender configured to send the first Diameter message through the primary routing if the routing status of the primary routing is normal, and to send the first Diameter message through an alternative routing from the network apparatus to the destination node if the routing status of the primary routing is faulty,
• wherein:
• the receiver is further configured to receive an error message returned through the primary routing, wherein the error message indicates that the first Diameter message is not delivered to the destination node due to a link from the network element to the destination node is faulty;
• the processor is further configured to modify the routing status of the primary routing recorded by the processor as faulty according to the error message after the receiver has received the error message;
• and the sender is further configured to resend the first Diameter message through the alternative routing after the receiver has received the error message, wherein the alternative routing is a routing from the network apparatus to the destination node through another different network element.

A network device, comprising a hardware processor and a non-transitory storage medium accessible to the hardware processor, the processor is configured to:

• record routing status from the network apparatus to a destination node, wherein communications between the network apparatus and the destination node are through a network element in the Diameter network and the network element forwards the first Diameter message from the network apparatus to the destination node;
• receive a first Diameter message configured to be delivered to a destination node;
• determine a routing status of a primary routing from the network apparatus to the destination node, according to the recorded routing status;
• and
• send the first Diameter message through the primary routing if the routing status of the primary routing is normal, and to send the first Diameter message through an alternative routing from the network apparatus to the destination node if the routing status of the primary routing is faulty,
• wherein after sending the first Diameter message through the primary routing, the processor is further configured to:
• receive an error message returned through the primary routing, wherein the error message indicates that the first Diameter message is not delivered to the destination node due to a link from the network element to the destination node is faulty;
• and
• modify the routing status of the primary routing as faulty according to the error message, and resending the first Diameter message through the alternative routing, wherein the alternative routing is a routing from the network apparatus to the destination node through another different network element.