I have a network that occasionally goes down. I have isolated the fault
between a PC Engines APU router running OpenBSD and an AVM Fritzbox that
does backup LTE and mainly 5 Ghz AP. I drew a map to further illustrate
my network:
----
to LTE network
[gaia]-- |
\ | [mercury]
[phone1] - \ | |
--- [uranus] === [fritzbox] --- [gamma] ---- to pppoe cloud
[phone2] - / ||
/ ||
[spica] - ||
[venus]---[beta(off)]
|
|
[freifunk]
Legend: Hosts + Routers:
--- CAT5 cabling gaia + spica: apple computers running vmware
=== wifi 5 Ghz uranus: OpenBSD i386 on Lanner hw
|| wifi 5 Ghz venus: OpenBSD amd64 on Soekris hw
gamma: OpenBSD amd64 on PC Engines APU
fritzbox: AVM fritzbox router
mercury + beta: OpenBSD + FreeBSD hosts
----
Now the fault is between fritzbox and gamma, as when the fault occurs I can
ping fritzbox from uranus across the 5 Ghz wifi link. But I cannot ping gamma.
I have exchanged the cable between fritzbox and gamma two times and I have
switched ports on the fritzbox, to no avail. I also opened a ticket with AVM,
to no avail.
gamma$ uname -a
OpenBSD gamma.virgostar.net 5.7 GENERIC.MP#2 amd64
gamma$ ifconfig re1
re1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:0d:b9:3d:bb:fd
priority: 0
media: Ethernet autoselect (100baseTX full-duplex,rxpause,txpause)
status: active
inet 192.168.179.1 netmask 0xffffff00 broadcast 192.168.179.255
There is usually a lot of traffic flowing from freifunk to gamma out the
PPPoE link (~200 pps).
Is there a way I can see when for example re1 renegotiates its linkspeed
or does otherwise operations that would impact the net?
Thanks for your help,
-peter
