VPLS uses Control Words (CW) for packet fragmentation and reassembly in RouterOS, adding 4-byte overhead to handle L2MTU limitations. CW fields include flags, fragmentation indicators, length, and sequence numbers for packet tracking, with usage controlled by the `use-control-word` parameter.
The VPLS page introduces MikroTik RouterOS's Virtual Private LAN Service (VPLS) interface, detailing its use as a transparent ethernet tunnel with LDP or MP-BGP protocols. It covers VPLS features like pseudowire signaling, fragmentation, and BGP-based autodiscovery, along with prerequisites for MPLS label distribution and i