[mpls-linux-general] Ldpd questions

[<dad...@gm...>]

Hi, dear all.

Following is my network topology,

host 1 --- A --------- B --------- C --- host 2

A and B connect with each other,
and B connect with C.
Now I have some questions.

1. Can it work well if A, B and C all implement ldpd?
    I mean, host 1 send a packet to host 2,
    and the packet from A to B, it pushes one label,
    then the packet from B to C, it pushes another label,
    in the end, C pop the label and send the packet to host 2.

2. Do I have to set router-id in ospfd.conf for ldp?

3. If I want to create a LSP from A to C and also inverse, how do I operate
it?
    Do LSP create by downstream on demand or downstream unsolicited?

4. Can A send a Targed Hello to C and then create a label about A to C?
    How about the inverse? Can C work automatically or manually?

Because I can't find the document about ldpd,
and nowadays I need to implement above things.
Can anyone give me some advices?

Thanks for your answering.
Regard.