[c-nsp] OSPF Cost vs Injected Default Route

[a. Rahman Isnaini R suTan]

Dear Oliver & All,


Let say 3 routers A, B and C running OSPF.
A is ASBR, connected to B and C
C connected to A directly & via B.

For router C which connected with two links :
    - Primary (w/ default route injected from A)
    - Secondary (w/ static default route + metric >110 to B)

In case of bad quality of primary link (not fully disconnected), I set cost 
5000 on interface router A towards C.
The default route changed to secondary.

How cost can affect the changing of default route ?

Salam,
a. Rahman Isnaini r. Sutan