Synthetic UUIDs from connection 4-tuples are not unique

[mattmathis]

The ephemeral port space is too small, such that beacons and OAM reuse 4-tuples thousands of times.

See: SELECT * FROM mlab-sandbox.inspector.DupUnifiedUUIDs LIMIT 1000

Consider adding Julian date (and either explicitly make it opaque or parsable).

[pboothe]

Yes. This requires careful throught.

[pboothe]

Add the date, make the date opaque.

[mattmathis]

This applies to web100 only. Date has been added, but some heavy hitting beacons still wrap the ports pace many times per day, so some duplicate UUIDs continus.

This is good enough for joining traceroute and other stable annotations, but insufficient for pcap and other per test annotations.
Lowering to P2.