Power over ethernet management devices and connection between ethernet devices
First Claim
1. An ethernet network comprising:
- a physical ethernet segment shared by at least two protected private networks coupled to a carrier network, comprising;
a first special client coupled to the interface between said ethernet segment and one of said protected private networks;
a second special client coupled to the interface between said ethernet segment and the other of said protected private networks; and
a network resolver between said ethernet segment and said carrier network;
each of said special clients and said resolver having a unique MAC address and being programmed to find the MAC address corresponding to an IP address, each of said special clients being programmed to send an ARP request to said network resolver using a unicast destination address, and said network resolver being programmed to respond to said request using a unicast ARP reply.
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Accused Products
Abstract
In one embodiment, a connection is maintained between a pair of ethernet ports that have circuitry connected in series with the ports and receiving power-over-ethernet (PoE) from one of the ports, by providing a controllable bypass circuit coupled to the pair of ethernet ports in parallel with the circuitry receiving power-over-ethernet, sensing a preselected condition, and opening and closing the bypass circuit in response to the presence or absence of the preselected condition. Power sourcing equipment (PSE) may supply the one of the ports with power over ethernet, and the circuitry may transports data between the pair of ethernet ports. The circuitry may also supply the switch with a control signal in response to the detection of the preselected condition.
31 Citations
8 Claims
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1. An ethernet network comprising:
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a physical ethernet segment shared by at least two protected private networks coupled to a carrier network, comprising; a first special client coupled to the interface between said ethernet segment and one of said protected private networks; a second special client coupled to the interface between said ethernet segment and the other of said protected private networks; and a network resolver between said ethernet segment and said carrier network; each of said special clients and said resolver having a unique MAC address and being programmed to find the MAC address corresponding to an IP address, each of said special clients being programmed to send an ARP request to said network resolver using a unicast destination address, and said network resolver being programmed to respond to said request using a unicast ARP reply. - View Dependent Claims (2, 3)
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4. A method of resolving an MAC address from an IP address in an ethernet network, the ethernet network comprising a physical ethernet segment shared by at least two protected private networks coupled to a carrier network, the method comprising;
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receiving by a network responder, the network responder located between the ethernet segment and the carrier network, a first ARP request transmitted by a first special client, the first ARP request using a first unicast destination address, the first special client coupled to an interface between the ethernet segment and one of the protected private networks; receiving by the network responder, a second ARP request transmitted by a second special client, the second ARP request using a second unicast destination address, the second special client coupled to an interface between the ethernet segment and the other of the protected private networks; resolving by the network responder, the unique MAC address of the first special client corresponding to the IP address of the first special client; resolving by the network responder, the unique MAC address of the second special client corresponding to the IP address of the second special client; transmitting by the network responder to the first special client a response to the first ARP request, using a third ARP request, the third ARP request using a third unicast destination address; transmitting by the network responder to the second special client a response to the second ARP request, using a fourth ARP request, the fourth ARP request using a fourth unicast destination address. - View Dependent Claims (5, 6, 7, 8)
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Specification