Because RFC2328 and RFC1583 adopt different route selection rules, you can configure the external route selection rules that are compatible with RFC1583.
RFC 2328 and RFC 1583 define the route selection rule differently. After OSPF is enabled on the FW, specify a route selection rule based on the FW configuration. The FW complies with the route selection rule defined in RFC 1583 by default. If the neighboring device complies with the route selection rule defined in RFC 2328, configure the local FW to comply with that defined in RFC 2328. This allows all devices in the OSPF area to comply with the same route selection rule.
system-view
ospf [ process-id ]
undo rfc1583 compatible
By default, the FW complies with route selection rule defined in RFC 1583.