Fast linkup arbitration
First Claim
1. A second network node comprising:
- first and second network ports each operable to support a network connection configured according to one or more of a predetermined set of physical layer protocols, said first and second network ports being physically connected to corresponding network ports of a first network node by respective physical links such that, in a first mode, physical links are made between the first and second network ports and the corresponding network ports on the first network node such that a first network message is received at at least one of the first and second network ports, and in a second mode, both the first and second network ports are isolated from the corresponding network ports on the first network node;
a memory configured to store information representing a header for the first network message; and
a processor configured to convert the first network message into a data packet using the information representing the header,wherein the first network port is configured to receive network messages over one of the physical links from its corresponding network port according to a first physical layer protocol,wherein the second network port is configured to receive network messages over one of the physical links from its corresponding network port according to a second physical layer protocol different from the first physical layer protocol.
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Accused Products
Abstract
A data processing system comprising: first and second network ports each operable to support a network connection configured according to one or more of a predetermined set of physical layer protocols; and a processor configured to, on a network message being formed for transmission to a network endpoint accessible over either of the first and second network ports: estimate the total time required to, for each of the predetermined set of physical layer protocols, negotiate a respective network connection and transmit the entire network message over that respective network connection; select the physical layer protocol having the lowest estimate of the total time required to negotiate a respective network connection and transmit the network message over that respective network connection; and configure at least one of the first and second network ports to use the selected physical layer protocol.
186 Citations
19 Claims
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1. A second network node comprising:
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first and second network ports each operable to support a network connection configured according to one or more of a predetermined set of physical layer protocols, said first and second network ports being physically connected to corresponding network ports of a first network node by respective physical links such that, in a first mode, physical links are made between the first and second network ports and the corresponding network ports on the first network node such that a first network message is received at at least one of the first and second network ports, and in a second mode, both the first and second network ports are isolated from the corresponding network ports on the first network node; a memory configured to store information representing a header for the first network message; and a processor configured to convert the first network message into a data packet using the information representing the header, wherein the first network port is configured to receive network messages over one of the physical links from its corresponding network port according to a first physical layer protocol, wherein the second network port is configured to receive network messages over one of the physical links from its corresponding network port according to a second physical layer protocol different from the first physical layer protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for use in a second network node comprising first and second network ports and a processor, each of said first and second network ports operable to support a network connection configured according to one or more of a predetermined set of physical layer protocols, said first and second network ports connected to corresponding network ports of a first network node by respective physical links such that, in a first mode, physical links are made between the first and second network ports and the corresponding network ports on the first network node such that a first network message is received at at least one of the first and second network ports, and in a second mode, both the first and second network ports are isolated from the corresponding network ports on the first network node, said method comprising:
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storing in a memory, information representing a header for the first network message; converting the first network message into a data packet using the information representing the header; receiving at the first network port, network messages over one of the physical links from its corresponding network port according to a first physical layer protocol; and receiving at the second network port, network messages over one of the physical links from its corresponding network port according to a second physical layer protocol different from the first physical layer protocol.
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Specification