Route redistribution between OSPF instances

[Yaroslav Dronskiy]

Thank you, the unset workaround works just fine.

By the way, unset() is not mentioned in documentation :-)

On 3/5/19 7:32 PM, Ondrej Zajicek wrote:
> On Mon, Mar 04, 2019 at 04:54:10PM +0300, Yaroslav Dronskii wrote:
>> Hello, I need some help in understanding bird. Route redistribution between
>> ospf instances doesn't work for me.
>> I tried everything I could think of short of debugging source code, and
>> narrowed it down to route type.
>> If it's RTS_OSPF_IA, ospf_metric2 is set to LSINFINITY.
> Hello
>
> This seems like a bug in BIRD. OSPF generated routes other than E2 (type
> 2 external) have attribute ospf_metric2 set to LSINFINITY, but when a
> route is exported to OSPF and have ospf_metric2 set (even to LSINFINITY),
> then it is generated as E2 with given metric. We should generate
> ospf_metric2 attribute only for E2 routes.
>
> There is a simple workaround: In OSPF export filter, use this command:
>
>    unset(ospf_metric2);
>
> That would generate E1 routes from IA routes. Or just set ospf_metric2 to
> a sane value to generate E2 routes.
>
>
>> How route is seen:
>> Imported from other vm host via ospf:
>> bird> show route table table_ospf_0 10.20.5.135/32 all
>> Table table_ospf_0:
>> 10.20.5.135/32       unicast [ospf_vm 13:52:53.209] IA (150/20)
>> [10.255.10.129]
>>          via 10.133.146.12 on ospf0-br
>>          Type: OSPF-IA univ
> This seems like another bug, there should be list of OSPF attributes.
>