LDP/VPLS causes kernel failer

RouterOS Forwarding Protocols
1

Hello,
I’ve just run into issue, when start to replace my switched backbone (RSTP) to OSPF/VPLS.
Started to pull access network from remote APs by VPLS tunnels to a RB1100AHx2 (currently running ROSv5.26)
to do queueing/dhcp server.
Sadly since first tunnels started to operate, the RB1100AHx2 rebooted sevaral times (daily). It had a 300+ day uptime before.

The log says:
System rebooted because of kernel failure
router was rebooted without proper shutdown

I’ve met with the same issue before with x86 (as i heard it’s still not fixed: http://forum.mikrotik.com/t/vpls-bug-in-x86-architecture/58651/1 )
Any of you have idea other than “upgrade, it may fix” ?
Thanks so much!

ps: Ticket#2015021166000379 (response: using very old release → upgrade)

2

Yes, v5 is very old and unsupported. Kernel crash that you have is fixed in v6.

3

I know, it’s old. I had same issue with x86.
I’ve tried the same thing, but not worked, so moved to VLAN separation, what caused same reboot issue in x86.
On x86 platform, i’ve tried 6.x (maybe 6.1x) without success.
Can you tell me please, if this issue is CPU (binary) related, or it affected both PPC or x86 ?
Which version fixes this issue?
What is the most reliable version in v6 branch for routing/queueing/VPLS ?
Thanks!

4

we are running 6.25 for 8 days without reboot, hopefully it will stay stable for weeks and months :slight_smile: