Redirection IP packet through switch fabric
First Claim
1. A method for redirecting an Internet Protocol (IP) packet from a packet redirect source to a packet redirect destination through a switch fabric, the method comprising:
- at said packet redirect source, copying a switch identifier of a switch of said switch fabric to a first subset of bits of a destination Media Access Control (MAC) address field of said IP packet, wherein said switch of said switch fabric is directly connected to said packet redirect destination;
at said packet redirect source, copying an index to a second subset of bits of said destination MAC address field of said IP packet, wherein said index at least indicates a port of said switch of said switch fabric, wherein said port of said switch is directly connected to said packet redirect destination;
in said switch fabric, forwarding said IP packet from said packet redirect source to said switch of said switch fabric according to said first subset of bits of said destination MAC address field of said IP packet; and
at said switch of said switch fabric, forwarding said IP packet out on said port of said switch according to said second subset of bits of said destination MAC address field of said IP packet.
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Abstract
A method for redirecting Internet Protocol (IP) packets from a packet redirect source to a packet redirect destination through a switch fabric of Ethernet switches is disclosed. At the packet redirect source, the topological location and the identifier of the packet redirect destination are put in a first set of bits and a second set of bits of the destination Media Access Control (MAC) address field of the packet to be redirected. The switch fabric forwards the packet to the switch directly connected to the packet redirect destination according to the first set of bits. Then the switch forwards the packet to the packet redirect destination according to the second set of bits.
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Citations
20 Claims
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1. A method for redirecting an Internet Protocol (IP) packet from a packet redirect source to a packet redirect destination through a switch fabric, the method comprising:
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at said packet redirect source, copying a switch identifier of a switch of said switch fabric to a first subset of bits of a destination Media Access Control (MAC) address field of said IP packet, wherein said switch of said switch fabric is directly connected to said packet redirect destination; at said packet redirect source, copying an index to a second subset of bits of said destination MAC address field of said IP packet, wherein said index at least indicates a port of said switch of said switch fabric, wherein said port of said switch is directly connected to said packet redirect destination; in said switch fabric, forwarding said IP packet from said packet redirect source to said switch of said switch fabric according to said first subset of bits of said destination MAC address field of said IP packet; and at said switch of said switch fabric, forwarding said IP packet out on said port of said switch according to said second subset of bits of said destination MAC address field of said IP packet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer program product comprising a non-transitory computer readable storage media having stored thereupon computer program code including a set of processor based instructions for redirecting an Internet Protocol (IP) packet from a packet redirect source to a packet redirect destination through a switch fabric, the computer program code, when being executed by a computer, causes:
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instructing said packet redirect source to copy a switch identifier of a switch of said switch fabric to a first subset of bits of a destination Media Access Control (MAC) address field of said IP packet, wherein said switch of said switch fabric is directly connected to said packet redirect destination; instructing said packet redirect source to copy an index to a second subset of bits of said destination MAC address field of said IP packet, wherein said index at least indicates a port of said switch of said switch fabric, wherein said port of said switch is directly connected to said packet redirect destination; instructing said switch fabric to forward said IP packet from said packet redirect source to said switch of said switch fabric according to said first subset of bits of said destination MAC address field of said IP packet; and instructing said switch of said switch fabric to forward said IP packet out on said port of said switch according to said second subset of bits of said destination MAC address field of said IP packet. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A system including a controller for redirecting an Internet Protocol (IP) packet, the system comprising:
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a packet redirect source; a packet redirect destination; and a switch fabric including a plurality of switches, wherein said packet redirect source copies a switch identifier of a switch of said switch fabric to a first subset of bits of a destination Media Access Control (MAC) address field of said IP packet, wherein said switch of said switch fabric is directly connected to said packet redirect destination; wherein said packet redirect source copies an index to a second subset of bits of said destination MAC address field of said IP packet, wherein said index at least indicates a port of said switch of said switch fabric, wherein said port of said switch is directly connected to said packet redirect destination; wherein switch fabric forwards said IP packet from said packet redirect source to said switch of said switch fabric according to said first subset of bits of said destination MAC address field of said IP packet; and wherein said switch of said switch fabric forwards said IP packet out on said port of said switch according to said second subset of bits of said destination MAC address field of said IP packet. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification