Hi Alexander,
Thanks for the link. I did not put here all my Cisco configuration which relates to VPLS thinking that i will need to correct something on Juniper box. Following Cisco Live presentation I was able to setup BGP signaling/autodiscovery VPLS between MX and ASR1K. I am sure folks out there will be interested and I will put full Cisco config here. I hope Juniper will not be against it.
l2vpn vfi context Cisco_Test
vpn id 1893
autodiscovery bgp signaling bgp
ve id 2
route-target export 1234:777
route-target import 1234:777
bridge-domain 1893
member Port-channel1 service-instance 1893
member vfi Cisco_Test
interface Port-channel1
mtu 1600
no ip address
no negotiation auto
service instance 1893 ethernet
encapsulation dot1q 1893
address-family l2vpn vpls
neighbor x.x.x.x activate
neighbor x.x.x.x send-community extended
neighbor x.x.x.x prefix-length-size 2
neighbor x.x.x.x suppress-signaling-protocol ldp
neighbor x.x.x.x activate
neighbor x.x.x.x send-community extended
neighbor x.x.x.x prefix-length-size 2
neighbor x.x.x.x suppress-signaling-protocol ldp
exit-address-family
Many Thanks