# D-2 passthrough in-flight + flip — 2026-07-09_132039

=== BEFORE @ 13:20:39 ===
-- dig gslb-pt --
10.255.194.107
-- endpoints (netshoot, gslb-pt cluster) --
ENDPOINT               STATUS      OUTLIER CHECK     CLUSTER
10.255.194.107:443     HEALTHY     OK                outbound|443||gslb-pt.lab.internal
-- cluster stats (gslb-pt, netshoot sidecar) --
cluster.outbound|443||gslb-pt.lab.internal;.membership_change: 4
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_active: 0
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy: 38
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local: 16
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local_with_active_rq: 3
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote: 22
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote_with_active_rq: 22
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_with_active_rq: 25
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_total: 38
tcp.outbound|443||gslb-pt.lab.internal.downstream_cx_total: 43

CURL_LAUNCH=13:20:39 (T0=1783570839) -- https://gslb-pt.lab.internal/slow, -k (SNI passthrough, cert CN mismatch expected)
FLIP_ISSUED=13:20:44 (t=+5s) gslb-pt: 10.255.194.107 -> 10.255.126.38
FLIP_DONE=13:20:44 (t=+5s)

[t=+12s]
=== MID1 @ 13:20:51 ===
-- dig gslb-pt --
10.255.126.38
-- endpoints (netshoot, gslb-pt cluster) --
ENDPOINT               STATUS      OUTLIER CHECK     CLUSTER
10.255.194.107:443     HEALTHY     OK                outbound|443||gslb-pt.lab.internal
-- cluster stats (gslb-pt, netshoot sidecar) --
cluster.outbound|443||gslb-pt.lab.internal;.membership_change: 4
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_active: 1
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy: 38
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local: 16
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local_with_active_rq: 3
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote: 22
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote_with_active_rq: 22
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_with_active_rq: 25
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_total: 39
tcp.outbound|443||gslb-pt.lab.internal.downstream_cx_total: 44

[t=+30s]
=== MID2 @ 13:21:09 ===
-- dig gslb-pt --
10.255.126.38
-- endpoints (netshoot, gslb-pt cluster) --
ENDPOINT              STATUS      OUTLIER CHECK     CLUSTER
10.255.126.38:443     HEALTHY     OK                outbound|443||gslb-pt.lab.internal
-- cluster stats (gslb-pt, netshoot sidecar) --
cluster.outbound|443||gslb-pt.lab.internal;.membership_change: 5
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_active: 1
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy: 38
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local: 16
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local_with_active_rq: 3
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote: 22
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote_with_active_rq: 22
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_with_active_rq: 25
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_total: 39
tcp.outbound|443||gslb-pt.lab.internal.downstream_cx_total: 44

CURL_WAIT_DONE=13:21:19 (t=+40s)
-- curl result --
CURL_EXIT=0 SIZE=409610 TIME=40.050531 HTTPCODE=200
-- curl stderr --

[t=+43s]
=== AFTER @ 13:21:22 ===
-- dig gslb-pt --
10.255.126.38
-- endpoints (netshoot, gslb-pt cluster) --
ENDPOINT              STATUS      OUTLIER CHECK     CLUSTER
10.255.126.38:443     HEALTHY     OK                outbound|443||gslb-pt.lab.internal
-- cluster stats (gslb-pt, netshoot sidecar) --
cluster.outbound|443||gslb-pt.lab.internal;.membership_change: 5
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_active: 0
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy: 39
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local: 16
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_local_with_active_rq: 3
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote: 23
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_remote_with_active_rq: 23
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_destroy_with_active_rq: 26
cluster.outbound|443||gslb-pt.lab.internal;.upstream_cx_total: 39
tcp.outbound|443||gslb-pt.lab.internal.downstream_cx_total: 44

-- received file check (netshoot) --
409610 /tmp/ptX.bin
backend-a
XXXXX

## 복구: gslb-pt -> backend-a 현재 pod IP로 재원복
10.255.194.107
backend-a
 [http_code=200]