Routing in communication networks
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsPiergiuseppe di Marco, Per Skillermark, Jingcheng Zhang
Life of this patent
Estimating the term…
Abstract
A node (100) is configured for use in a communication network. The node (100) is configured to obtain a message with a source address and a destination address. The node (100) is also configured to determine whether the message is a type of message that is sent in response to a different message routed from the destination address to the source address, and whether a forward route (16) from the destination address to the source address has been established. The node (100) is also configured to selectively transmit the message on a backward route (18) that is the reverse of the forward route (16), depending on the determining.
Claims13
A method performed by a node configured for use in a communication network, the method comprising:
- obtaining a message with a source address and a destination address;
- determining whether the message is a type of message that is sent in response to a different message routed from the destination address to the source address, and whether a forward route from the destination address to the source address has been established;
- and
- selectively transmitting the message on a backward route that is the reverse of the forward route, depending on the determining,
- wherein the forward route is established by a first protocol layer of the node, and wherein a second protocol layer of the node that is lower than the first protocol layer determines whether to transmit the message on the backward route.
A node configured for use in a communication network, the node comprising communication circuitry and processing circuitry wherein the node is configured to:
- obtain a message with a source address and a destination address;
- determine whether the message is a type of message that is sent in response to a different message routed from the destination address to the source address, and whether a forward route from the destination address to the source address has been established;
- and
- selectively transmit the message on a backward route that is the reverse of the forward route, depending on the determining,
- wherein the forward route is established by a first protocol layer of the node, and wherein a second protocol layer of the node that is lower than the first protocol layer determines whether to transmit the message on the backward route.
A non-transitory computer readable storage medium storing computer executable instructions that, when executed by a node configured for use in a communication network, configures the node to:
- obtain a message with a source address and a destination address;
- determine whether the message is a type of message that is sent in response to a different message routed from the destination address to the source address, and whether a forward route from the destination address to the source address has been established;
- and
- selectively transmit the message on a backward route that is the reverse of the forward route, depending on the determining,
- wherein the forward route is established by a first protocol layer of the node, and wherein a second protocol layer of the node that is lower than the first protocol layer determines whether to transmit the message on the backward route.
Dependencies are inferred from the claim text.