Hi there!
This time, I will share with you about the application of VPN in GPON by PWE3.
Definition
Pseudo-wire emulation edge to edge (PWE3) is a type of Layer 2 service carrying technology. It is mainly used to emulate the essential behavior and characteristics of the services such as the ATM, frame relay, Ethernet, low-rate time division multiplexing (TDM) circuit, and synchronous optical network (SONET)/synchronous digital hierarchy (SDH) as faithfully as possible in a packet switched network (PSN).
PWE3 is implemented on access devices through MPLS and IP technologies. MPLS supports PWE3 by using the LDP or RSVP-TE protocol as signaling.
Network Applications of TDM PWE3
For details on the corresponding clock solution of the TDM service, see Physical Layer Clock/Time Synchronization.
Network application: converting the native TDM service into the E1 service for upstream transmission
As shown in the first figure, the mobile 2G base station is connected to the ONU through TDM E1. The ONU encapsulates the TDM frame into the GPON GEM frame directly to transmit TDM service over the GPON network (native TDM). The OLT terminates the TDM PWE3 signals and transmits the signals to the upstream network through the E1 port.
Network Applications of ETH PWE3
Network application: implementing PWE3 private line upstream transmission in FE/GE access
As shown in second figure, the enterprise router is connected to the OLT through FE/GE. The OLT interconnects with the peer ETH PWE3 device of the enterprise through the ETH PWE3 private line to implement the ETH private line service.
For the configuration process of PWE3, please click PWE3. If you can't open this link, please refer to this post to upgrade your permissions: How do we upgrade our account.
Thank you!
