Dear All,
I would like to make two AX500's to work in Active/Standby mode with OSPF, where the default route is announced only by the active A10 in the pair. Is that possible?
Please find the attached example topology.
Thank you in advance.
Best Regards,
Nik
0
Comments
the short is is Yes it is definitely possible
The AX device uses HA-aware VIPs, floating IPs, IP NAT pools, and IP
range lists with route redistribution to achieve HA-aware dynamic routing.
However, by default, the OSPF protocol on the AX device is not aware of
the HA state (Active or Standby) of the AX device. Consequently, following
HA failover of an AX device, other OSPF routers might continue forwarding
traffic to the Standby AX device (the former Active AX device), instead
of the new Active AX device.
Note: In Layer 3 inline mode, all VLANs on the AX device participate in OSPF
routing by default.
You can assign an additional cost to an AX device’s OSPF interfaces when
the HA status for any group on the device is Standby. If failover of one or
more HA groups from Active to Standby occurs, the AX device does the
following:
• Updates the cost of all its OSPF interfaces
• Sends Link-State Advertisement (LSA) updates to its OSPF neighbors
advertising the interface cost change
for additional configuration information you can check the AX config guide section "Configuring OSPF-Related HA Parameters"