1  10:17:05.850284 MPLS (label 100656, tc 6, [S], ttl 64)
	IP (tos 0xc0, ttl 64, id 40719, offset 0, flags [none], proto TCP (6), length 71)
    12.4.4.4.4100 > 12.8.8.8.179: Flags [P.], cksum 0xfd1b (correct), seq 1860641958:1860641977, ack 2969468967, win 16384, options [nop,nop,TS val 84784152 ecr 84770238], length 19: BGP
	Keepalive Message (4), length: 19
    2  10:17:08.118493 MPLS (label 100688, tc 7, [S], ttl 255)
	IP (tos 0x0, ttl 64, id 40723, offset 0, flags [none], proto UDP (17), length 76)
    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: No return code or return code contained in the Error Code TLV (0)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 1
	  Sender Timestamp: 1087208228.000027564 (1934-06-15T10:17:08Z) Receiver Timestamp: no timestamp
	  Target FEC Stack TLV (1), length: 12
	    LDP IPv4 prefix subTLV (1), length: 5
	      12.1.1.1/32
	      0x0000:  0c01 0101 20
	    0x0000:  0001 0005 0c01 0101 2000 0000
    3  10:17:08.119504 IP (tos 0xc0, ttl 62, id 50878, offset 0, flags [none], proto UDP (17), length 60)
    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 1
	  Sender Timestamp: 1087208228.000027564 (1934-06-15T10:17:08Z) Receiver Timestamp: 1087208228.000027928 (1934-06-15T10:17:08Z)
    4  10:17:08.878375 MPLS (label 100704, tc 6, [S], ttl 64)
	IP (tos 0xc0, ttl 64, id 40725, offset 0, flags [none], proto TCP (6), length 71)
    12.4.4.4.2006 > 12.1.1.1.179: Flags [P.], cksum 0x6c0d (correct), seq 399708866:399708885, ack 708613212, win 16384, options [nop,nop,TS val 84784455 ecr 130411], length 19: BGP
	Keepalive Message (4), length: 19
    5  10:17:08.978295 MPLS (label 100704, tc 6, [S], ttl 64)
	IP (tos 0xc0, ttl 64, id 40726, offset 0, flags [none], proto TCP (6), length 52)
    12.4.4.4.2006 > 12.1.1.1.179: Flags [.], cksum 0x6451 (correct), seq 19, ack 20, win 16384, options [nop,nop,TS val 84784465 ecr 133413], length 0
    6  10:17:09.128397 MPLS (label 100688, tc 7, [S], ttl 255)
	IP (tos 0x0, ttl 64, id 40727, offset 0, flags [none], proto UDP (17), length 76)
    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: No return code or return code contained in the Error Code TLV (0)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 2
	  Sender Timestamp: 1087208229.000029880 (1934-06-15T10:17:09Z) Receiver Timestamp: no timestamp
	  Target FEC Stack TLV (1), length: 12
	    LDP IPv4 prefix subTLV (1), length: 5
	      12.1.1.1/32
	      0x0000:  0c01 0101 20
	    0x0000:  0001 0005 0c01 0101 2000 0000
    7  10:17:09.129192 IP (tos 0xc0, ttl 62, id 50880, offset 0, flags [none], proto UDP (17), length 60)
    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 2
	  Sender Timestamp: 1087208229.000029880 (1934-06-15T10:17:09Z) Receiver Timestamp: 1087208229.000030186 (1934-06-15T10:17:09Z)
    8  10:17:10.128607 MPLS (label 100688, tc 7, [S], ttl 255)
	IP (tos 0x0, ttl 64, id 40729, offset 0, flags [none], proto UDP (17), length 76)
    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: No return code or return code contained in the Error Code TLV (0)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 3
	  Sender Timestamp: 1087208230.000029928 (1934-06-15T10:17:10Z) Receiver Timestamp: no timestamp
	  Target FEC Stack TLV (1), length: 12
	    LDP IPv4 prefix subTLV (1), length: 5
	      12.1.1.1/32
	      0x0000:  0c01 0101 20
	    0x0000:  0001 0005 0c01 0101 2000 0000
    9  10:17:10.129475 IP (tos 0xc0, ttl 62, id 50882, offset 0, flags [none], proto UDP (17), length 60)
    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 3
	  Sender Timestamp: 1087208230.000029928 (1934-06-15T10:17:10Z) Receiver Timestamp: 1087208230.000030250 (1934-06-15T10:17:10Z)
   10  10:17:11.128577 MPLS (label 100688, tc 7, [S], ttl 255)
	IP (tos 0x0, ttl 64, id 40731, offset 0, flags [none], proto UDP (17), length 76)
    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: No return code or return code contained in the Error Code TLV (0)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 4
	  Sender Timestamp: 1087208231.000029918 (1934-06-15T10:17:11Z) Receiver Timestamp: no timestamp
	  Target FEC Stack TLV (1), length: 12
	    LDP IPv4 prefix subTLV (1), length: 5
	      12.1.1.1/32
	      0x0000:  0c01 0101 20
	    0x0000:  0001 0005 0c01 0101 2000 0000
   11  10:17:11.129418 IP (tos 0xc0, ttl 62, id 50883, offset 0, flags [none], proto UDP (17), length 60)
    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 4
	  Sender Timestamp: 1087208231.000029918 (1934-06-15T10:17:11Z) Receiver Timestamp: 1087208231.000030237 (1934-06-15T10:17:11Z)
   12  10:17:12.128655 MPLS (label 100688, tc 7, [S], ttl 255)
	IP (tos 0x0, ttl 64, id 40733, offset 0, flags [none], proto UDP (17), length 76)
    12.4.4.4.4786 > 127.0.0.1.3503: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: No return code or return code contained in the Error Code TLV (0)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 5
	  Sender Timestamp: 1087208232.000029937 (1934-06-15T10:17:12Z) Receiver Timestamp: no timestamp
	  Target FEC Stack TLV (1), length: 12
	    LDP IPv4 prefix subTLV (1), length: 5
	      12.1.1.1/32
	      0x0000:  0c01 0101 20
	    0x0000:  0001 0005 0c01 0101 2000 0000
   13  10:17:12.129573 IP (tos 0xc0, ttl 62, id 50886, offset 0, flags [none], proto UDP (17), length 60)
    10.20.0.1.3503 > 12.4.4.4.4786: [udp sum ok] 
	LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32
	  reply-mode: Reply via an IPv4/IPv6 UDP packet (2)
	  Return Code: Replying router is an egress for the FEC at stack depth 0 (3)
	  Return Subcode: (0)
	  Sender Handle: 0x00000000, Sequence: 5
	  Sender Timestamp: 1087208232.000029937 (1934-06-15T10:17:12Z) Receiver Timestamp: 1087208232.000030273 (1934-06-15T10:17:12Z)