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Hi , I was reading the RFC 2740 and had a question regarding the setting of cost for ospfv3 routes configured on loopback interface.
RFC 2740section 3.4.3.7. says – RTX adds the IPv6 prefixes for any directly attached hosts belonging to the area (see Section C.7) to the intra-area-prefix- LSA
o If RTX has one or more virtual links configured through the area, it includes one of its site-local or global scope IPv6 interface addresses in the LSA (if it hasn't already), setting the LA-bit in the PrefixOptions field, and setting the PrefixLength to 128 and the Metric to 0. This information will be used later in the routing calculation so that the two ends of the virtual link can discover each other's IPv6 addresses.
Now if I have configured ipv6 global address on loopback interface and this router has only p2p links to transit area , Then we need to orginate intra-prefix LSA for this loopback address with LA bit set and cost set to 0 . so does it mean the cost configured on loopback interface should not be used while advertising in intra-prefix LSA and downloading the route to RIB??
Thanks in advance santosh |