netdev - Linux MPLS traceroute failure

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Date:   Sun, 13 Aug 2017 01:42:43 +0300
From:   Алексей Болдырев 
        <devel-net-ne-vlezay80@...dex.ru>
To:     netdev <netdev@...r.kernel.org>
Subject: Linux MPLS traceroute failure

Testing MPLS from Linux kernel 4.12. The trace route is duplicete pe-p hop. This is not visible MPLS label on traceroute.

root@...vlezay80:~# traceroute -e 10.10.10.4
traceroute to 10.10.10.4 (10.10.10.4), 30 hops max, 60 byte packets
 1  10.5.5.1 (10.5.5.1)  0.028 ms  0.005 ms  0.006 ms
 2  10.4.4.2 (10.4.4.2)  0.021 ms  0.007 ms  0.012 ms
 3  10.4.4.2 (10.4.4.2)  0.008 ms  0.008 ms  0.007 ms
 4  10.10.10.4 (10.10.10.4)  0.015 ms  0.009 ms  0.008 ms
root@...vlezay80:~#