Virtual private network (VPN) with channelized ethernet over sonet (EoS) interface and method
First Claim
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1. A Virtual Private Network (VPN), comprising:
- a shared label switching network;
a plurality of Virtual Local Access Networks (VLANs) each coupled to an edge router of the shared label switching network, the VLANs each communicating traffic with a corresponding edge router utilizing channelized Ethernet over SONET (EoS); and
the edge routers interfacing the VLANs with the shared label switching network.
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Abstract
A VPN includes a shared label switching network, a plurality of VLANs and edge routers interfacing the VLANs with the shared label switching network. The VLANs are each coupled to an edge router and communicate traffic using channelized EoS.
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Citations
20 Claims
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1. A Virtual Private Network (VPN), comprising:
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a shared label switching network;
a plurality of Virtual Local Access Networks (VLANs) each coupled to an edge router of the shared label switching network, the VLANs each communicating traffic with a corresponding edge router utilizing channelized Ethernet over SONET (EoS); and
the edge routers interfacing the VLANs with the shared label switching network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An edge router of a shared label switching network, comprising:
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an Ethernet over SONET (EoS) line card including a SONET channelization element operable to receive from a Virtual Local Access Network (VLAN) a channelized EoS signal including a plurality of Ethernet channels and to send VLAN packets received in each of the Ethernet channels to a corresponding Ethernet interface;
one or more Virtual Private Network (VPN) units coupled to the Ethernet interfaces and operable to identify a VPN for the VLAN packets and to send the VLAN packets to a corresponding VPN subrouter based on the VPN; and
each VPN subrouter operable to convert the VLAN packets to a label switching packet for transmission over the shared label switching network in the VPN. - View Dependent Claims (13, 14, 15)
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16. A method, comprising:
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receiving a SONET frame including a plurality of Ethernet channels, each Ethernet channel including ingress packets associated with one or more Virtual Private Networks (VPNs);
determining a VPN associated with each ingress packet; and
converting each ingress packet to an egress label switching packet based on the associated VPN for transmission over a shared network. - View Dependent Claims (17, 18)
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19. A method, comprising:
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receiving a channelized Ethernet over SONET (EoS) signal comprising a plurality of Ethernet channels, each Ethernet channel including a plurality of Virtual Local Access Network (VLAN) packets;
demultiplexing the Ethernet channels;
determining a Virtual Private Network (VPN) associated with each VLAN packet of each Ethernet channel; and
converting the VLAN packets for each Ethernet channel to label switching packets based on the associated VPN for transmission through a shared label switching network. - View Dependent Claims (20)
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Specification