Metro ethernet network with scaled broadcast and service instance domains
First Claim
1. A method of operation for a network-facing provider edge device (n-PE) of a core network, the method comprising:
- receiving a customer frame from an access network, the customer frame having a first Virtual Local Area Network (VLAN) tag of a first predetermined bit length, the first VLAN tag including a service instance identifier; and
mapping the service instance identifier of the first VLAN tag into a second VLAN tag of a second predetermined bit length greater than the first predetermined bit length.
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Accused Products
Abstract
A method of operation for a provider edge device of a core network includes receiving a customer frame from an access network; the customer frame having a first Virtual Local Area Network (VLAN) tag of a first predetermined bit length. The first VLAN tag including a service instance identifier. The service instance identifier of the first VLAN tag is then mapped into a second VLAN tag of a second predetermined bit length greater than the first predetermined bit length. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
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Citations
35 Claims
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1. A method of operation for a network-facing provider edge device (n-PE) of a core network, the method comprising:
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receiving a customer frame from an access network, the customer frame having a first Virtual Local Area Network (VLAN) tag of a first predetermined bit length, the first VLAN tag including a service instance identifier; and
mapping the service instance identifier of the first VLAN tag into a second VLAN tag of a second predetermined bit length greater than the first predetermined bit length. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of operation for a user-facing provider edge device (u-PE) of an access network, the method comprising:
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receiving a customer frame from a customer edge (CE) device;
adding a first Virtual Local Area Network (VLAN) tag having a first bit length of 12-bits or more to the customer frame, the first VLAN tag including a service instance identifier; and
adding a second Virtual Local Area Network (VLAN) tag of a second bit length to the customer frame, the second VLAN tag specifying a broadcast domain of the access network. - View Dependent Claims (8, 9, 10, 11, 20)
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12. A method of operation for a network-facing provider edge device (n-PE) of a core network, the method comprising:
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receiving a customer frame from an access network, the customer frame having a first Virtual Local Area Network (VLAN) tag of a first predetermined bit length, the first VLAN tag including a service instance identifier; and
mapping the service instance identifier of the first VLAN tag into a second VLAN tag of a second predetermined bit length greater than the first predetermined bit length, the second VLAN tag further specifying a broadcast domain of the core network. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of operation for a user-facing provider edge device (u-PE) of an access network, the method comprising:
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receiving a customer frame from a customer edge (CE) device; and
adding a Virtual Local Area Network (VLAN) tag having a bit length of 20-bits or more to the customer frame, the VLAN tag including broadcast domain and a service instance identifiers. - View Dependent Claims (19)
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21. A network-facing provider edge (n-PE) device comprising:
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a port to receive a customer frame from an access network, the customer frame having a first Virtual Local Area Network (VLAN) tag of a first predetermined bit length, the first VLAN tag including a service instance identifier; and
a processing unit that maps the service instance identifier of the first VLAN tag into a second VLAN tag of a second predetermined bit length greater than the first predetermined bit length. - View Dependent Claims (22, 23, 24)
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25. A user-facing provider edge device (u-PE) device comprising:
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a port to receive a customer frame from a customer edge (CE) device; and
a processing unit that adds first and second Virtual Local Area Network (VLAN) tags to the customer frame, the first VLAN tag having a first bit length of 12-bits or more that identifies a service instance, and the second VLAN tag having a second bit length of 12-bits or more that specifies a broadcast domain of a network. - View Dependent Claims (26)
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27. A network-facing provider edge device (n-PE) device comprising:
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a port to receive a customer frame from an access network, the customer frame having a first Virtual Local Area Network (VLAN) tag of a first predetermined bit length, the first VLAN tag including a service instance identifier; and
a processing unit that maps the service instance identifier of the first VLAN tag into a second VLAN tag of a second predetermined bit length greater than the first predetermined bit length. - View Dependent Claims (28, 29, 30)
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31. A user-facing provider edge device (u-PE) device comprising:
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a port to receive a customer frame from a customer edge (CE) device; and
a processing unit that adds a Virtual Local Area Network (VLAN) tag having a bit length of 20-bits or more to the customer frame, the VLAN tag including broadcast domain and a service instance identifiers. - View Dependent Claims (32)
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33. A provider edge device comprising:
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a plurality of ports; and
means for adding an Extended Virtual Local Area Network (E-VLAN) tag to a data packet received at a first port for transmission across a network, and for dropping the E-VLAN tag received at a second port after traversed the network, the E-VLAN tag including a service instance identifier and having a bit length of at least 20 bits. - View Dependent Claims (34, 35)
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Specification