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traceroute is becoming useless for cloud debugging

Networking by minh1987 1 replies 120 views
6 #1

In my country we rely heavily on traceroute for diagnosing fiber cuts. But more of my customers now use Vultr and GreenCloudVPS for their applications. Load balancers hide the real path. Anycast returns different node each probe. In my country the utility is declining. What tools replace it? I use mtr still but results confuse my team.

phở at 3AM, deploy at 4
2 #2
minh1987 said:
What tools replace it?

RFC 8029 defines MPLS LSP ping which addressed similar opacity in MPLS networks. Cloud is no different. Your AS has no visibility into GreenCloudVPS's prefix announcements anyway. Without your own ASN you're trusting their path selection blindly. Diagram of typical anycast capture:

[You] --[LB]-- [Node A] or [Node B] or [Node C]
(random per flow)

Traceroute variants exist: Paris traceroute, Dublin traceroute. But fundamentally you lack prefix-level control. Get an ASN. Run your own prefixes. Then we can discuss.

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