Hi there,
i have read the MPLS LDP help Pages
https://help.mikrotik.com/docs/display/ROS/LDP?src=contextnavpagetreemode
but i don’t understand it exactly. 
MPLS and LDP is clear, but advertised and accept-Filter not currently.
There are:
Let's consider that we have already existing four routers setup, with working IP connectivity.
(lo:111.111.111.1) (lo:111.111.111.2) (lo:111.111.111.3) (lo:111.111.111.4)
|---------R1-----(111.11.0.0/24)-----R2-----(111.12.0.0/24)-----R3-----(111.13.0.0/24)-----R4---------|
and then:
In the given example setup all routers can be configured so that they advertise labels only for routes that allow reaching the endpoints of tunnels. For this 2 advertise filters need to be configured on all routers:
/mpls ldp advertise-filter add prefix=111.111.111.0/24 advertise=yes
/mpls ldp advertise-filter add prefix=0.0.0.0/0 advertise=no
ok. this works, whean all loopback-Adresses in an /24
But my setup is:
Let's consider that we have already existing four routers setup, with work ing IP connectivity.
(lo:10.20.1.1) (lo:10.13.11.1) (lo:10.14.12.1) (lo:10.1.1.1)
|---------R1-----(111.11.0.0/30)-----R2-----(111.12.0.0/30)-----R3-----(111.13.0.0/30)-----R4---------|
so there are an VPLS Interface between R1 and R4 (no vpls other)
Must every Router advertised his own loopback-address and all other router loopback-adresses or only his own?
Must i advertised on evry router all transport /30 Adresses?
What must i accept on the routers?
thanks
Christian