Interworking between ethernet and MPLS
First Claim
1. A source node for addressing target nodes in a communication system, the source node configured to be part of an Ethernet domain and the target nodes configured to be part of a Multiple Protocol Label Switching (MPLS) domain that is connected to the Ethernet domain via an interworking node, the source node comprising processing circuits configured to execute the stored processing instructions to:
- generate a message comprisingan identifier of the source node,an identifier of the interworking node, andan identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an MPLS address;
send the message to the certain target node via the interworking node, andreceive from the certain target node via the interworking node a reply to the message.
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Abstract
A source node for addressing target nodes (44, 46) in a communication system (10), the source node configured to be part of an Ethernet domain (20) and the target nodes (44, 46) configured to be part of a Multiple Protocol Label Switching (MPLS) domain (40) that is connected to the Ethernet domain (20) via an interworking node (30). The source node is further configured to: i) generate a message (51) comprising an identifier of the source node, an identifier of the interworking node (30), and an identifier of a certain target node (44) of the target nodes (44, 46), ii) send the message (51) to the certain target node (44) via the interworking node (30), and iii) receive from the certain target node (44) via interworking node (30) a reply (54) to the message (51). An alternate source node, related interworking nodes and methods are also described.
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Citations
25 Claims
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1. A source node for addressing target nodes in a communication system, the source node configured to be part of an Ethernet domain and the target nodes configured to be part of a Multiple Protocol Label Switching (MPLS) domain that is connected to the Ethernet domain via an interworking node, the source node comprising processing circuits configured to execute the stored processing instructions to:
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generate a message comprising an identifier of the source node, an identifier of the interworking node, and an identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an MPLS address; send the message to the certain target node via the interworking node, and receive from the certain target node via the interworking node a reply to the message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An interworking node for transferring a message in a communication system, the interworking node configured to connect an Ethernet domain with a Multiple Protocol Label Switching (MPLS) domain, wherein the Ethernet domain comprises a source node and the MPLS domain comprises target nodes, the interworking node comprising processing circuits configured to execute the stored processing instructions to:
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receive from the source node a message comprising an identifier of the source node, an identifier of the interworking node, and an identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an MPLS address; convert the message from an Ethernet format to an MPLS format, send the converted message to the certain target node, wherein said converted message is addressed with the received Ethernet address; receive from the certain target node a reply to the converted message, convert the reply from an MPLS format to an Ethernet format, and send the converted reply to the source node. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for a source node adapted to address target nodes in a communication system, the source node configured to be part of an Ethernet domain and the target nodes configured to be part of a Multiple Protocol Label Switching (MPLS) domain that is connected to the Ethernet domain via an interworking node, the method comprising the steps of:
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generating a message comprising an identifier of the source node, an identifier of the interworking node, and an identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an MPLS address; sending the message to the certain target node via the interworking node, and receiving from the certain target node via the interworking node a reply to the message.
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23. A method for an interworking node adapted to transfer a message in a communication system, the interworking node configured to connect an Ethernet domain with a Multiple Protocol Label Switching (MPLS) domain, wherein the Ethernet domain comprises a source node and the MPLS domain comprises target nodes, the method comprising:
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receiving from the source node a message comprising an identifier of the source node, an identifier of the interworking node, and an identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an MPLS address; converting the message from an Ethernet format to an MPLS format, sending the converted message to the certain target node, wherein said converted message is addressed with the received MPLS address; receiving from the certain target node a reply to the converted message, converting the reply from an MPLS format to an Ethernet format, and sending the converted reply to the source node.
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24. A source node for addressing target nodes in a communication system, the source node configured to be part of a Multiple Protocol Label Switching (MPLS) domain and the target nodes configured to be part of an Ethernet domain that is connected to the MPLS domain via an interworking node, the source node comprising processing circuits configured to execute the stored processing instructions to:
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generate a message comprising an identifier of the source node, an identifier of the interworking node, and an identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an Ethernet address; send the message to the certain target node via the interworking node, and receive from the certain target node via interworking node a reply to the message.
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25. An interworking node for transferring a message in a communication system, the interworking node configured to connect a Multiple Protocol Label Switching (MPLS) domain with an Ethernet domain, wherein the MPLS domain comprises a source node and the Ethernet domain comprises target nodes, the interworking node comprising processing circuits configured to execute the stored processing instructions to:
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receive from the source node a message comprising an identifier of the source node, an identifier of the interworking node, and an identifier of a certain target node of the target nodes, said identifier of the certain target node comprises an Ethernet address; convert the message from an MPLS format to an Ethernet format, send the converted message to the certain target node, wherein said converted message is addressed with the received Ethernet address; receive from the certain target node a reply to the converted message, convert the reply from an Ethernet format to an MPLS format, and send the converted reply to the source node.
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Specification