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net/netcheck: add a few more STUN retries for prior DERP home

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For #1310, maybe.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2021-03-12 11:34:49 -08:00
committed by Brad Fitzpatrick
parent 0a84359d2d
commit c6358f2247
2 changed files with 39 additions and 1 deletions
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29
net/netcheck/netcheck_test.go
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@ -410,6 +410,35 @@ func TestMakeProbePlan(t *testing.T) {
"region-5-v6": []probe{p("5a", 6), p("5b", 6, 100*ms), p("5c", 6, 200*ms)},
},
},
{
name: "try_harder_for_preferred_derp",
dm: basicMap,
have6if: true,
last: &Report{
RegionLatency: map[int]time.Duration{
1: 10 * time.Millisecond,
2: 20 * time.Millisecond,
3: 30 * time.Millisecond,
4: 40 * time.Millisecond,
},
RegionV4Latency: map[int]time.Duration{
1: 10 * time.Millisecond,
2: 20 * time.Millisecond,
},
RegionV6Latency: map[int]time.Duration{
3: 30 * time.Millisecond,
4: 40 * time.Millisecond,
},
PreferredDERP: 1,
},
want: probePlan{
"region-1-v4": []probe{p("1a", 4), p("1a", 4, 12*ms), p("1a", 4, 124*ms), p("1a", 4, 186*ms)},
"region-1-v6": []probe{p("1a", 6), p("1a", 6, 12*ms), p("1a", 6, 124*ms), p("1a", 6, 186*ms)},
"region-2-v4": []probe{p("2a", 4), p("2b", 4, 24*ms)},
"region-2-v6": []probe{p("2a", 6), p("2b", 6, 24*ms)},
"region-3-v4": []probe{p("3a", 4)},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {