Systems and methods for providing transparent ethernet private line services using static pseudo-wire configuration
The present disclosure is directed to enabling transparency for network traffic through an off-net site using the concept of static Pseudo-Wire (PW) of arriving data packets at a Network Interface Device (NID). In one aspect, a method of providing transparent Ethernet private line service includes receiving, at a network interface device of an enterprise network, a packet, the enterprise network being configured to receive the Ethernet private line service from a service provider; determining, by the network interface device, whether the packet is a raw data packet or a statically pseudo-wired packet; and performing, by the network interface device, a pseudo-wire encapsulation process if the packet is the raw data packet or a pseudo-wire de-capsulation process if the packet is the statically pseudo-wired packet, prior to delivering the packet to a corresponding destination.
1. A method of providing transparent Ethernet private line service, the method comprising:
receiving, at a network interface device of an enterprise network, a packet, the enterprise network being configured to receive the Ethernet private line service from a service provider;
determining, by the network interface device, whether the packet is a raw data packet or a statically pseudo-wired packet;
performing, by the network interface device, a pseudo-wire encapsulation process in response to the packet being the raw data packet and a pseudo-wire de-capsulation process in response to the packet being the statically pseudo-wired packet, prior to delivering the packet to a corresponding destination, wherein the pseudo-wire encapsulation process comprises:
adding a multiprotocol label switching (MPLS) label to the raw data packet to yield a pseudo-wired packet (PW packet); and
adding a Service Tag (S-Tag) to the PW packet; and
sending the PW packet to an off-net Ethernet Virtual Private Line Facility, wherein
at the off-net Ethernet Virtual Private Line Facility, an Ethernet Tag (E-Tag) is added to the PW packet and transmitted to a network to network interface (NNI) for transmission to a customer premise equipment (CPE) of a customer over a metro core, and
upon arrival at a site of the customer, another network interface device, performs the pseudo-wire de-capsulation process to retrieve the raw data packet for transmission to the CPE.
2. The method of claim 1 , wherein the network interface device does not require any protocol stacking for implementing MPLS.
3. The method of claim 1 , wherein the pseudo-wire encapsulation process prevents the off-net Ethernet Virtual Private Line Facility from dropping the raw data packet by hiding content of the raw data packet from the off-net Ethernet Virtual Private Line Facility.
4. The method of claim 3 , wherein the content includes a payload, a source address, and a destination address of the raw data packet.
5. The method of claim 1 , wherein the pseudo-wire de-capsulation process comprises:
removing a service tag of the packet;
removing a pseudo-wire header of the packet to yield a raw data packet;
determining a destination address of the raw data packet; and
sending the raw data packet to the destination.
6. A system configured to provide transparent Ethernet private line service, the system comprising:
a service provider;
an off-net Ethernet Virtual Private Line Facility;
a network to network interface (NNI);
a customer premise equipment (CPE); and
a device, the device comprising:
memory having computer-readable instructions stored therein; and
one or more processors configured to execute the computer-readable instructions to:
receive a packet, the device being configured as a component of an enterprise network that receives the Ethernet private line service from the service provider;
determine whether the packet is a raw data packet or a statically pseudo-wired packet;
perform a pseudo-wire encapsulation process in response to the packet being the raw data packet and a pseudo-wire de-capsulation process in response to the packet being the statically pseudo-wired packet, prior to delivering the packet to a corresponding destination, wherein the pseudo-wire encapsulation process comprises:
adding a multiprotocol label switching (MPLS) label to the raw data packet to yield a pseudo-wired packet (PW packet); and
adding a Service Tag (S-Tag) to the PW packet; and
send the PW packet to the off-net Ethernet Virtual Private Line Facility, wherein
at the off-net Ethernet Virtual Private Line Facility, an Ethernet Tag (E-Tag) is added to the PW packet and transmitted to the NNI for transmission to the CPE of a customer over a metro core, and
upon arrival at a site of the customer, another network interface device, performs the pseudo-wire de-capsulation process to retrieve the raw data packet for transmission to the CPE.
7. The system of claim 6 , wherein the device does not require any protocol stacking for implementing MPLS.
8. The system of claim 6 , wherein the pseudo-wire encapsulation process prevents the off-net Ethernet Virtual Private Line Facility from dropping the raw data packet by hiding content of the raw data packet from the off-net Ethernet Virtual Private Line Facility.
9. The system of claim 8 , wherein the content includes a payload, a source address and a destination address of the raw data packet.
10. The system of claim 6 , wherein the pseudo-wire de-capsulation process comprises:
removing a service tag of the packet;
removing a pseudo-wire header of the packet to yield a raw data packet;
determining a destination address of the raw data packet; and
sending the raw data packet to the destination.