[c-nsp] AtoM PPP to Ethernet

[M K]

Hi , I am trying to configure xconnect between PPP and ethernet
R12#sh run int f1/0interface FastEthernet1/0 ip address 10.1.124.12 255.255.255.0 speed 100 duplex full ipv6 address 2001:10:124::12/64
R6#sh run int f2/0 interface FastEthernet2/0 no ip address speed 100 duplex full no keepalive xconnect 4.4.4.4 124 encapsulation mpls pw-class XC
R14#sh run int s1/0interface Serial1/0 ip address 10.1.124.14 255.255.255.0 encapsulation ppp ipv6 address 2001:10:124::14/64 clock rate 128000
R4#sh run int s3/0interface Serial3/0 no ip address encapsulation ppp keepalive 10 3 clock rate 128000 xconnect 6.6.6.6 124 encapsulation mpls pw-class XC
R4#sh run | sec psepseudowire-class XC encapsulation mpls interworking ip
R6#sh run | sec psepseudowire-class XC encapsulation mpls interworking ip
R4#sh mpls ldp neighbor 6.6.6.6    Peer LDP Ident: 6.6.6.6:0; Local LDP Ident 4.4.4.4:0        TCP connection: 6.6.6.6.47298 - 4.4.4.4.646        State: Oper; Msgs sent/rcvd: 21/15; Downstream        Up time: 00:03:53        LDP discovery sources:          Targeted Hello 4.4.4.4 -> 6.6.6.6, active, passive        Addresses bound to peer LDP Ident:          192.1.36.6      6.6.6.6         192.1.67.6   
R6#sh mpls ldp neighbor 4.4.4.4    Peer LDP Ident: 4.4.4.4:0; Local LDP Ident 6.6.6.6:0        TCP connection: 4.4.4.4.646 - 6.6.6.6.47298        State: Oper; Msgs sent/rcvd: 15/21; Downstream        Up time: 00:04:03        LDP discovery sources:          Targeted Hello 6.6.6.6 -> 4.4.4.4, active, passive        Addresses bound to peer LDP Ident:          192.1.14.4      192.1.45.4      4.4.4.4         44.44.44.44   
R4#sh mpls l2transport summary Destination address: 6.6.6.6, total number of vc: 1  0 unknown, 0 up, 1 down, 0 admin down, 0 recovering, 0 standby, 0 hotstandby
R6#sh mpls l2transport summary Destination address: 4.4.4.4, total number of vc: 1  0 unknown, 0 up, 1 down, 0 admin down, 0 recovering, 0 standby, 0 hotstandby
I have tried to play with MTU but nothing changes , what i am missing?