On Monday 30 November 2009 11:09:31 pm Alex wrote: > If your VLANs are all covered by "network X.Y.Z.W area V" > command under "router ospf T" then they all are > represented as Type-1/Type-2 LSA in OSPF LSDB. > And every time a VLAN goes down, LSA-1/2 are reflooded > with Age=MaxAge (default 3600 sec). > When this VLAn goes back up, LSA-1/2 are recreated and > reflooded again. Every time this happens, all OSPF > routers in given area must recalculate their SPF, then > put OSPF routes in a routing table with new timestamp.
That's OSPFv2 for you. Mark.
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