Fine then! I was suspicious about some changes in thread-next (where this problem can be actually reproduced with a good probability) and now I know that I should assess the whole algorithm instead.
Thanks a lot! Maria On October 7, 2022 11:29:09 AM UTC, Mihai <mihaigabr...@gmail.com> wrote: >Hi Maria, > >Yes you are correct, the metric is not a random value but an old value, >probably the first one after OSPF established. >It looks like any subsequent change in the OSPF topology/metrics is not >reflected in the BGP_NH metric. > >Best regards, >Mihai > >On 03/10/2022 12:43, Maria Matejka via Bird-users wrote: >> Hello! >> >> I'd suspect the internal nexthop resolving mechanisms of missing the OSPF >> route update. When working on the multithreaded version, I came across a >> similar kind of bug and I honestly don't know yet how exactly this may be >> broken. >> >> That said, is it possible that the metric is just an obsolete value from >> some previous route version? >> >> Thanks for your report. >> >> Maria >> >> On 9/30/22 17:10, Mihai via Bird-users wrote: >>> Hello, >>> >>> The same issue on another RR, the BGP_Metric=60380 while the >>> OSPF_Metric=60315. >>> >>> bird> sh route 10:10 202.81.16.0/24 all >>> Table vpntab4: >>> 10:10 202.81.16.0/24 unicast [ROUTER2 2022-09-29 15:21:18 from >>> 10.100.186.6] * (100/60380) [AS4826i] >>> Type: BGP univ >>> BGP.origin: IGP >>> BGP.as_path: 4826 >>> BGP.next_hop: 10.100.186.6 >>> >>> bird> show route 10.100.186.6/32 >>> Table master4: >>> 10.100.186.6/32 unicast [OSPF 2022-09-30 15:01:51] IA (150/60315) >>> [10.100.186.4] >>> >>> >>> >>> On 30/09/2022 09:08, Mihai wrote: >>>> Hello, >>>> >>>> First I would like to thank you for this amazing software! >>>> >>>> I am running Bird 2.0.7 as RR for L3VPNs and on one RR the OSPF metric for >>>> the BGP NH is different than what's seen in BGP as shown below. >>>> >>>> BGP PREF/METRIC = (100/61580) , OSPF_METRIC = 61480. >>>> >>>> >>>> bird> sh route 10:10 94.207.96.0/19 all primary >>>> Table vpntab4: >>>> 10:10 94.207.96.0/19 unicast [ROUTER1 2022-09-28 00:10:09 from >>>> 10.100.186.1] * (100/61580) [AS15802i] >>>> Type: BGP univ >>>> BGP.origin: IGP >>>> BGP.as_path: 15802 >>>> BGP.next_hop: 10.100.184.8 >>>> >>>> bird> sh route 10.100.184.8/32 >>>> Table master4: >>>> 10.100.184.8/32 unicast [OSPF 2022-09-29 12:33:35] IA (150/61480) >>>> [10.100.186.5] >>>> >>>> After restarting the BIRD OSPF adjancency the BGP metric changed to 61480. >>>> >>>> >>>> Any help in understanding the issue would be much appreciated. >>>> >>>> Thank you! >>> >>> > -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
