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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-replace/state.txt
View File

@@ -1,19 +1,18 @@
=== 2026-09-06T00:16:41+01:00 ===
=== 2026-09-06T00:32:54+01:00 ===
--- AC sessions ---
ifname | username | ip | ip6 | ip6-dp | calling-sid | rate-limit | state | uptime | rx-bytes | tx-bytes
--------+----------+----------------+-----+--------+-------------------+------------+--------+----------+----------+----------
ppp0 | simdsl | 198.51.100.129 | | | 52:54:00:4e:0b:56 | | active | 00:00:31 | 438 B | 204 B
ppp0 | simdsl | 198.51.100.135 | | | 52:54:00:4e:0b:56 | | active | 00:00:30 | 438 B | 204 B
--- 172.31.1.252 ---
--- 172.31.1.253 ---
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=22 dropin=yes role=master
pppoe0 UNKNOWN 198.51.100.129 peer 198.51.100.1/32
default nhid 62 dev pppoe0 proto static metric 20
Sep 05 23:06:18 vyos vrrp-wan[213859]: not MASTER but bond0.53 enabled -> releasing
Sep 05 23:06:23 vyos vrrp-wan[214503]: bond0.53 disable commit took 5s
Sep 05 23:10:43 vyos vrrp-wan[221064]: MASTER: dialling pppoe0
Sep 05 23:10:44 vyos vrrp-wan[221212]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:10:48 vyos vrrp-wan[221995]: bond0.53 enable commit took 4s
-- Boot 1f635fc6900c4661b3ac6d016d63d293 --
Sep 05 23:16:10 vyos vrrp-wan[7037]: MASTER: dialling pppoe0
Sep 05 23:16:11 vyos vrrp-wan[7190]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:16:15 vyos vrrp-wan[7979]: bond0.53 enable commit took 4s
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=19 dropin=yes role=master
pppoe0 UNKNOWN 198.51.100.135 peer 198.51.100.1/32
default nhid 77 dev pppoe0 proto static metric 20
Sep 05 23:22:54 vyos vrrp-wan[6126]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:22:59 vyos vrrp-wan[6915]: bond0.53 enable commit took 5s
Sep 05 23:27:40 vyos vrrp-wan[16037]: not MASTER: hanging up pppoe0
Sep 05 23:27:40 vyos vrrp-wan[16198]: not MASTER but bond0.53 enabled -> releasing
Sep 05 23:27:47 vyos vrrp-wan[16840]: bond0.53 disable commit took 7s
Sep 05 23:32:26 vyos vrrp-wan[23806]: MASTER: dialling pppoe0
Sep 05 23:32:26 vyos vrrp-wan[23956]: MASTER with bond0.53 disabled -> enabling
Sep 05 23:32:31 vyos vrrp-wan[24749]: bond0.53 enable commit took 5s