What does this (backup) CARP status mean?

MrPete

Here's a screen grab from my current HA backup interface CARP status area:

One interface has what I think of as the backup icon, but not the word "BACKUP"???

I assume this is significant ;)

Derelict

What is the output of ifconfig -vva for that interface?

MrPete

@derelict said:

What is the output of ifconfig -vva for that interface?

Kinda... Heh ;)

vtnet1.9: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=80000<LINKSTATE>
        ether 66:79:46:a8:5c:3f
        inet6 fe80::6479:46ff:fea8:5c3f%vtnet1.9 prefixlen 64 scopeid 0xa
        groups: vlan All_Internal All_IoT All_WiFi
        vlan: 9 vlanpcp: 0 parent interface: vtnet1
        media: Ethernet 10Gbase-T <full-duplex>
        status: active
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>

Hmmm... completely missing two elements that exist on all other local interfaces:

Description
CARP info

Even though it is "UP... RUNNING". The interface is disabled (unchecked 'enable' in the Interface GUI)
Why: because if enabled, it becomes a second master, wrecking that part of the network. :(

SO: simple answer to my question is: this is an obscure way to see a disabled interface???

Yet on the master side it is identically configured to the other interfaces (other than IP and name)

Derelict

@mrpete That interface has no IPv4 addresses on it. Is it numbered and enabled?

If so, I would edit/save the interface configuration and edit/save the CARP VIP.

MrPete

@derelict Notice I said it is DISabled :)

Derelict

@mrpete Well, there you go. No CARP VIP no status.

If you have MASTER/MASTER then you need to fix the layer 2 between that interface on both nodes.