[nsp] Newbie OSPF Q.

[Oliver Boehmer (oboehmer)]

Hi,

> I'd like to see all possible paths to a network announced by OSPF.
> In my case I have three possible links, not having equal costs.
> 
> Is there a way to see all paths (as with sho ip route) where one can
> see paths with unequal costs. And the costs listed as well.

No, there is no way to see the alternate paths. You can take a look into
the LSA's and see which alternate node advertised the prefix, but this
doesn't give you what you're looking for. 
When we perform the SPF algorithm, only the best path(s) are entered
into the RIB, the alternate paths are discarded.

In IOS' ISIS implementation, there is a hidden knob
("display-route-detail") which shows you the backup paths (rather: the
LSP which contains it and the metric), but we don't do this for OSPF, as
far as I know.

	oli