Compressed virtual routing and forwarding in a communications network
First Claim
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1. A method comprising:
- receiving Virtual Routing and Forwarding (VRF) information at a network device, said VRF information associated with a network comprising a plurality of network sites and a VRF identifier;
processing said VRF information at the network device, wherein processing comprises mapping said VRF identifier to an Interior Gateway Protocol (IGP) adjacency; and
transmitting said VRF information with said VRF identifier on said IGP adjacency;
wherein multiple of said VRF identifiers associated with different networks are mapped to said IGP adjacency at the network device.
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Abstract
In one embodiment, an apparatus includes a plurality of network site interfaces in communication with two or more networks, each of the networks associated with a different Virtual Routing and Forwarding (VRF) instance, and a processor configured for mapping the VRF instances to an Interior Gateway Protocol (IGP) adjacency and transmitting VRF information on the IGP adjacency along with a VRF identifier indicating the network associated with the VRF information. A method is also disclosed.
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Citations
20 Claims
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1. A method comprising:
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receiving Virtual Routing and Forwarding (VRF) information at a network device, said VRF information associated with a network comprising a plurality of network sites and a VRF identifier; processing said VRF information at the network device, wherein processing comprises mapping said VRF identifier to an Interior Gateway Protocol (IGP) adjacency; and transmitting said VRF information with said VRF identifier on said IGP adjacency; wherein multiple of said VRF identifiers associated with different networks are mapped to said IGP adjacency at the network device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus comprising:
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a plurality of network site interfaces in communication with two or more networks, each of the networks associated with a different Virtual Routing and Forwarding (VRF) instance; and a processor configured for mapping said VRF instances to an Interior Gateway Protocol (IGP) adjacency and transmitting VRF information on said IGP adjacency along with a VRF identifier indicating the network associated with said VRF information. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus comprising:
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means for processing Virtual Routing and Forwarding (VRF) information received at the apparatus, said VRF information associated with a network comprising a plurality of network sites and a VRF identifier, wherein means for processing comprises means for mapping said VRF identifier to an Interior Gateway Protocol (IGP) adjacency; and means for transmitting said VRF information with said VRF identifier on said IGP adjacency; wherein multiple of said VRF identifiers associated with different networks are mapped to said IGP adjacency at the network device. - View Dependent Claims (17, 18, 19, 20)
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Specification