Virtual Layer 2 and Mechanism to Make it Scalable
First Claim
1. A network component comprising:
- a receiver configured to receive a plurality of Internet Protocol (IP) addresses for a plurality of hosts in a plurality of external Layer 2 networks located at a plurality of physical locations and interconnected via a service;
a logic circuit configured to map the IP addresses of the hosts in the external Layer 2 networks to a plurality of Media Access Control (MAC) addresses of a plurality of corresponding gateways in the same external Layer 2 networks; and
a transmitter configured to send to the external Layer 2 networks a plurality of a plurality of IP addresses for a plurality of local hosts in a local Layer 2 network coupled to the external Layer 2 networks via the service.
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Accused Products
Abstract
A network component including a receiver configured to receive a plurality of Internet Protocol (IP) addresses for a plurality of hosts in a plurality of external Layer 2 networks located at a plurality of physical locations and interconnected via a service, a logic circuit configured to map the IP addresses of the hosts in the external Layer 2 networks to a plurality of Media Access Control (MAC) addresses of a plurality of corresponding gateways in the same external Layer 2 networks, and a transmitter configured to send to the external Layer 2 networks a plurality of a plurality of IP addresses for a plurality of local hosts in a local Layer 2 network coupled to the external Layer 2 networks via the service.
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Citations
11 Claims
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1. A network component comprising:
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a receiver configured to receive a plurality of Internet Protocol (IP) addresses for a plurality of hosts in a plurality of external Layer 2 networks located at a plurality of physical locations and interconnected via a service; a logic circuit configured to map the IP addresses of the hosts in the external Layer 2 networks to a plurality of Media Access Control (MAC) addresses of a plurality of corresponding gateways in the same external Layer 2 networks; and a transmitter configured to send to the external Layer 2 networks a plurality of a plurality of IP addresses for a plurality of local hosts in a local Layer 2 network coupled to the external Layer 2 networks via the service. - View Dependent Claims (2, 3, 4)
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5. A method, comprising:
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receiving a frame from a first host in a first data center (DC) location that is intended for a second host in a second DC location; mapping a destination address (DA) for the second host in the frame to a Media Access Control (MAC) address of a Layer 2 Gateway (L2GW) in the second DC location; adding an outer MAC header that supports Institute of Electrical and Electronics Engineers (IEEE) 802.1ah standard for MAC-in-MAC to obtain an inner frame that indicates the MAC address of the L2GW; and sending the inner frame to the second DC location via a service instance coupled to the second DC location. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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Specification