Layer two virtual private network having control plane address learning supporting multi-homed customer networks
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United States of America Patent
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Feb 10, 2015
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N/A
app pub date -
Mar 22, 2012
filing date -
Mar 23, 2011
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Abstract
This disclosure describes techniques for supporting an and Multi-Protocol Label Switching (MPLS)-based Virutal Private Network (VPN) service that provides layer two (L2) connectivity between the customer edge device. In particular, the techniques support a Border Gateway (BGP) MPLS-based MAC VPNs (“MAC-VPN” or “MAC VPN”). The techniques provide a MAC VPN in which L2 MAC address learning occurs in the control plane via inter-device BGP signaling in the control plane rather than the data plane, in response to VPN traffic, as may be typical with other VPN technologies.
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