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labsim: both matrices green end to end, numbers reproduced
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Final confirming run with GRACE=300 and every fix installed:

  --all   ALL PASS  (T0 T3 T5 T8 T11 T12)
  --hard  ALL PASS  (replace / deny / disable, each policy verified)

Second independent measurement of the hard failover, which is what makes the
figures trustworthy rather than anecdotal:

                run 1   run 2
  replace        26s     26s
  deny          148s    141s
  disable        21s     20s

`deny` sits at ~141-148s across both, so it is the AC's dead-peer behaviour
and not a one-off; GRACE=300 keeps roughly 2x margin.

Corrected an overclaim in PPPOE-HA.md while confirming it: the invariant row
read "AC never showed two simdsl sessions", and under session-control=disable
it did -- one live, one orphaned from the destroyed router. Only ever one LIVE
router dialled, which is the invariant that matters. Said so plainly rather
than leaving a table that reads better than the evidence.
This commit is contained in:
Michal
2026-09-06 00:42:01 +01:00
parent 97efb5abb2
commit 5ed0e4888a
11 changed files with 177 additions and 163 deletions
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27
labsim/wan-failover-evidence/T4-hard-failover-deny/state.txt
View File

@@ -1,20 +1,19 @@
=== 2026-09-06T00:21:00+01:00 ===
=== 2026-09-06T00:37:11+01:00 ===
--- AC sessions ---
ifname | username | ip | ip6 | ip6-dp | calling-sid | rate-limit | state | uptime | rx-bytes | tx-bytes
--------+----------+----------------+-----+--------+-------------------+------------+--------+----------+----------+----------
ppp0 | simdsl | 198.51.100.130 | | | 52:54:00:e5:95:a2 | | active | 00:00:18 | 438 B | 204 B
ppp0 | simdsl | 198.51.100.136 | | | 52:54:00:e5:95:a2 | | active | 00:00:13 | 438 B | 204 B
--- 172.31.1.252 ---
vip=172.31.1.1 holds_vip=yes wan_disabled=no wan_up=yes ppp_up=yes ppp_active=yes may_dial=yes lease_age=30 dropin=yes role=master
pppoe0 UNKNOWN 198.51.100.130 peer 198.51.100.1/32
vip=172.31.1.1 holds_vip=yes wan_disabled=no wan_up=yes ppp_up=yes ppp_active=yes may_dial=yes lease_age=26 dropin=yes role=master
pppoe0 UNKNOWN 198.51.100.136 peer 198.51.100.1/32
default via 203.0.113.1 dev bond0.53 proto failover metric 1
Sep 05 23:07:43 apitest vrrp-wan[22667]: MASTER: dialling pppoe0
Sep 05 23:08:14 apitest vrrp-wan[24120]: MASTER: dialling pppoe0
-- Boot c5f23399239b468c8c8b752a4305c515 --
Sep 05 23:13:04 apitest vrrp-wan[6261]: MASTER: dialling pppoe0
Sep 05 23:13:04 apitest vrrp-wan[6413]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:13:08 apitest vrrp-wan[7122]: bond0.53 enable commit took 4s
-- Boot 46727d256db344d6ad4b37c142272071 --
Sep 05 23:18:31 apitest vrrp-wan[6258]: MASTER: dialling pppoe0
Sep 05 23:18:31 apitest vrrp-wan[6411]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:18:36 apitest vrrp-wan[7038]: bond0.53 enable commit took 5s
Sep 05 23:27:40 apitest vrrp-wan[12654]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:27:45 apitest vrrp-wan[13361]: bond0.53 enable commit took 5s
Sep 05 23:29:01 apitest vrrp-wan[16369]: GUARD: lease stale (200s > 75s; is vrrp-wan-reconcile.timer running?) -- hanging up pppoe0
Sep 05 23:29:27 apitest vrrp-wan[17398]: MASTER: dialling pppoe0
Sep 05 23:29:57 apitest vrrp-wan[18610]: MASTER: dialling pppoe0
-- Boot 6efc3c9ba47f455e9668454ee6c2fc37 --
Sep 05 23:34:48 apitest vrrp-wan[6266]: MASTER: dialling pppoe0
Sep 05 23:34:49 apitest vrrp-wan[6422]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:34:54 apitest vrrp-wan[7130]: bond0.53 enable commit took 5s
--- 172.31.1.253 ---