[mpls-linux-general] meaning of the mpls instructions

[<rau...@gm...>]

Hello! I am Ra=FAl Gil

I have found in mailing list the mpls utility usage

"mpls" utility usage
 --------------------
=20
     mpls nhlfe add key 0 instructions push gen 16 nexthop wlan0 ipv4
192.168.2.1
     (output: "Key: 0x2")
     mpls ilm add label gen 16 labelspace 0
     mpls labelspace add dev eth0 labelspace 0
     mpls xc add ilm_label gen 16 ilm_labelspace 0 nhlfe_key 0x2
     mpls tunnel add dev mpls0 key 0x2
     ip route add 10.0.0.0/24 via 192.168.2.1 spec_nh 0x8847 0x2

but I do not know that it makes each instruction (nhlfe, ilm,
labelspace, xc), I do not know that it means.

For example, if I execute 'mpls ilm add label gen 16 labelspace 0',
what I am doing?

Can you helpme?, please!

Ra=FAl Gil.