topic Re: Path Monitoring question? in General Topics

Path Monitoring question?

OMatlock — Tue, 09 May 2017 21:55:39 GMT

Hi folks,

Preparing for my HA configuration this weekend. 🙂

I have a question about creating a Path monitoring group on the Passive device.

While I go through the procedures to configure HA on the Active device, I plan to set a Path monitoring group for our virtual router named SDTSS.

When I go through the same procedures on my Passive device (already reset to default, apply licensing, etc), I should not expect to see SDTSS as a selection in my Path monitor group creation, correct?

Would have to finish configuring and sync for created Virtual Router configs to come over to Passive device before I could configure a Path monitoring group for a virtual router (beyond default)?

Thanks

Re: Path Monitoring question?

Raido_Rattameister — Wed, 10 May 2017 02:11:47 GMT

Yeah until you have config syncronized over you don't have custom virtual router there in the list.

Few options.

Rename default router to SDTSS and prepare Path monitoring.

Configure Path monitoring in Web interface after HA is set up.

Identify config change when you configure Path Monitoring on active device, copy those set commands out and paste them into secondary device when HA is set up.

Way to get full config in set commands:
> set cli config-output-format set
> configure
# show

Edit: Definitely use at least 2 different destinations in Path Monitoring. If you don't want your firewalls to flap then don't expect that 8.8.8.8 gives you SLA and is always up 🙂

Re: Path Monitoring question?

OMatlock — Wed, 10 May 2017 14:33:07 GMT

Thank you!

I will likely try for a successful sync first.

I wonder how much Link/Path monitoring matters on a Passive device if the other is set to Preemptive and should switch back to it when comes back online?

Re: Path Monitoring question?

Raido_Rattameister — Wed, 10 May 2017 16:29:01 GMT

Passive will not do any path monitoring as it's interfaces are not enabled.

Passive uses same MAC addresses as active so it can't have interface up.

I suggest to set "Passive Link State" to auto. Default is Shut down.

Auto will bring passive firewall up faster as switch ports are already aware of device connected to those ports.