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Active/Standby with OSPF

nabromovnabromov Member ✭
in System
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

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    UnknownUnknown
    edited February 2014
    Hello
    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"
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