ASBR1 ASBR2
-------- D ------- E --------
| |
| |
A -------- C F -------- B
CE1 PE1 PE2 CE2
| |
| |
-------- G ------- H --------
ASBR3 ASBR4
# 12.0R4 default behavior (vc-only)
*A:Dut-A# traceroute 3.3.3.4 source 3.3.4.2 wait 100 no-dns
detail traceroute to 3.3.3.4 from 3.3.4.2, 30 hops max, 40 byte packets
1 1 3.3.4.1 1.97 ms
1 2 3.3.4.1 1.74 ms
1 3 3.3.4.1 1.71 ms
2 1 *
2 2 *
2 3 *
3 1 *
3 2 *
3 3 *
4 1 3.3.3.6 6.76 ms
4 2 3.3.3.6 7.37 ms
4 3 3.3.3.6 8.36 ms
5 1 3.3.3.4 11.1 ms
5 2 3.3.3.4 9.46 ms
5 3 3.3.3.4 8.28 ms
# Configure icmp-tunneling on C, D, E and F
*A:Dut-A# traceroute 3.3.3.4 source 3.3.4.2 wait 100 no-dns
detail traceroute to 3.3.3.4 from 3.3.4.2, 30 hops max, 40 byte packets
1 1 3.3.4.1 1.95 ms
1 2 3.3.4.1 1.85 ms
1 3 3.3.4.1 1.62 ms
2 1 10.0.7.3 6.76 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262143, Exp = 0, TTL = 255, S = 0
entry 2: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
2 2 10.0.7.3 6.92 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262143, Exp = 0, TTL = 255, S = 0
entry 2: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
2 3 10.0.7.3 7.58 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262143, Exp = 0, TTL = 255, S = 0
entry 2: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
3 1 10.0.5.4 6.92 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
3 2 10.0.5.4 7.03 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
3 3 10.0.5.4 8.66 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
4 1 3.3.3.6 6.67 ms
4 2 3.3.3.6 6.75 ms
4 3 3.3.3.6 6.96 ms
5 1 3.3.3.4 8.32 ms
5 2 3.3.3.4 11.6 ms
5 3 3.3.3.4 8.45 ms
# With ttl-propagate vprn-transit none on PE1 *A:Dut-C# configure router ttl-
propagate vprn-transit none *A:Dut-B# traceroute 3.3.3.4 source 3.3.4.2 wait 100 no-
dns detail traceroute to 3.3.3.4 from 3.3.4.2, 30 hops max, 40 byte packets
1 1 3.3.4.1 1.76 ms
1 2 3.3.4.1 1.75 ms
1 3 3.3.4.1 1.76 ms
2 1 3.3.3.6 6.50 ms
2 2 3.3.3.6 6.70 ms
2 3 3.3.3.6 6.36 ms
3 1 3.3.3.4 8.34 ms
3 2 3.3.3.4 7.64 ms
3 3 3.3.3.4 8.73 ms
# With ttl-propagate vprn-transit all on PE1 *A:Dut-C# configure router ttl-
propagate vprn-transit all *A:Dut-B# traceroute 3.3.3.4 source 3.3.4.2 wait 100 no-
dns detail traceroute to 3.3.3.4 from 3.3.4.2, 30 hops max, 40 byte packets
1 1 3.3.4.1 1.97 ms
1 2 3.3.4.1 1.77 ms
1 3 3.3.4.1 2.37 ms
2 1 10.0.7.3 9.27 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262143, Exp = 0, TTL = 1, S = 0
entry 2: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
2 2 10.0.7.3 6.39 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262143, Exp = 0, TTL = 1, S = 0
entry 2: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
2 3 10.0.7.3 6.19 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262143, Exp = 0, TTL = 1, S = 0
entry 2: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
3 1 10.0.5.4 6.80 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
3 2 10.0.5.4 6.71 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
3 3 10.0.5.4 6.58 ms
returned MPLS Label Stack Object
entry 1: MPLS Label = 262140, Exp = 0, TTL = 1, S = 1
4 1 3.3.3.6 6.47 ms
4 2 3.3.3.6 6.75 ms
4 3 3.3.3.6 9.06 ms
5 1 3.3.3.4 7.99 ms
5 2 3.3.3.4 9.31 ms
5 3 3.3.3.4 8.13 ms