[c-nsp] Dialer vs. dinamic routing

[Piestaga]

Hi,

I would like to describe the problem I have and I would like to ask if
that is the regular behaviour or is it a type of bug ?

There is a CE router that is connectied to PE using primary link with
OSPF.
There is also a floating static route that points the dialer to get
the destination (eg.):  ip route 10.10.10.0 255.255.255.0 Dialer1 220
when primary is down (220 is a distance metric higher that dafault
ospf metric)
Primary link is connected to PE-A whereas backup interface dials-in to
PE-B

When primary link goes down, the backup session is established and
there is no problem with that.
Problem is when the primary links is up again.
Because of the OSPF on CE is configured with "redistribute static",
it also redistributes the floating static route build by dialer
interface.

For me the dialer should terminate the connection when the 10.10.10.0
is acccessible by primary link. But it does not happen. It looks like
the CE sends via OSPF the update about 10.10.10.0 available through dialer
interface before the PE-A sends to CE the update about the same
network lerned from MBGP (MPLS in backbone).
This causes that PE-A trying to send the whole traffic to 10.10.10.0 using
dialer what causes the dialer up and running all the time (
OSPF metric is more preferable than MBGP)

The temporary solution we use is to assigen a tag to the dialer
floating static route and deny the redistribution for that tag on
OSPF toward PE-A.

My question is whether this is a regular way it works, or I should
watch for bug linked that case.

Thanks for any help or suggestions
Sebastian