Pointers please - OSPFv3 vs Cisco IOS XR

[Elmar K. Bins]

Hi Ondrej,

sorry, I missed your response (T., thank you for forwarding):

>> I am very certain somebody has experienced similar issues and solved them; I
>> did not find any pointers - please throw them at me. If this is new or unsolved,
>> please help me forward, I can get more output, naturally.
> 
> Hi
> 
> It might be useful if you enable 'debug all' for OSPFv3 in BIRD.

Alright...sorry, I thought I had "all" on, but apparently didn't.
Here's the output from that, shortened and edited to protect the innocent.
(If you require the full output, I'll email it to you)

Thank you for taking a look at this,

Elmar.

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2020-06-03 12:30:13.801 <TRACE> ospf2: HELLO packet received from nbr <router-1> on igb0
2020-06-03 12:30:16.899 <TRACE> ospf2: DBDES packet received from nbr <router-1> on igb0
2020-06-03 12:30:16.899 <TRACE> ospf2:     length   28
2020-06-03 12:30:16.899 <TRACE> ospf2:     router   <router-1>
2020-06-03 12:30:16.899 <TRACE> ospf2:     mtu      1500
2020-06-03 12:30:16.899 <TRACE> ospf2:     imms     I M MS
2020-06-03 12:30:16.899 <TRACE> ospf2:     ddseq    147850133
2020-06-03 12:30:16.899 <TRACE> ospf2: Neighbor <router-1> on igb0 changed state from ExStart to Exchange
2020-06-03 12:30:16.899 <TRACE> ospf2: DBDES packet sent to nbr <router-1> on igb0
2020-06-03 12:30:16.899 <TRACE> ospf2:     length   108
2020-06-03 12:30:16.899 <TRACE> ospf2:     router   <bird-ip>
2020-06-03 12:30:16.899 <TRACE> ospf2:     mtu      1500
2020-06-03 12:30:16.899 <TRACE> ospf2:     imms
2020-06-03 12:30:16.899 <TRACE> ospf2:     ddseq    147850133
(a handful of LSAs)

2020-06-03 12:30:16.901 <TRACE> ospf2: DBDES packet received from nbr <router-1> on igb0
2020-06-03 12:30:16.901 <TRACE> ospf2:     length   1228
2020-06-03 12:30:16.901 <TRACE> ospf2:     router   <router-1>
2020-06-03 12:30:16.901 <TRACE> ospf2:     mtu      1500
2020-06-03 12:30:16.901 <TRACE> ospf2:     imms     M MS
2020-06-03 12:30:16.901 <TRACE> ospf2:     ddseq    147850134
(more LSAs)

2020-06-03 12:30:16.901 <TRACE> ospf2: DBDES packet sent to nbr <router-1> on igb0
2020-06-03 12:30:16.901 <TRACE> ospf2:     length   28
2020-06-03 12:30:16.901 <TRACE> ospf2:     router   <bird-ip>
2020-06-03 12:30:16.901 <TRACE> ospf2:     mtu      1500
2020-06-03 12:30:16.901 <TRACE> ospf2:     imms
2020-06-03 12:30:16.901 <TRACE> ospf2:     ddseq    147850134
2020-06-03 12:30:16.903 <TRACE> ospf2: LSREQ packet sent to nbr <router-1> on igb0
2020-06-03 12:30:16.903 <TRACE> ospf2:     length   736
2020-06-03 12:30:16.903 <TRACE> ospf2:     router   <bird-ip>
(some LSRs)

2020-06-03 12:30:16.906 <TRACE> ospf2: LSREQ packet received from nbr <router-1> on igb0
2020-06-03 12:30:16.906 <TRACE> ospf2:     length   52
2020-06-03 12:30:16.906 <TRACE> ospf2:     router   <router-1>
(more LSRs)

2020-06-03 12:30:16.906 <TRACE> ospf2: LSUPD packet sent to nbr <router-1> on igb0
2020-06-03 12:30:16.906 <TRACE> ospf2:     length   144
2020-06-03 12:30:16.906 <TRACE> ospf2:     router   <bird-ip>
(some LSAs)

2020-06-03 12:30:16.906 <TRACE> ospf2: DBDES packet received from nbr <router-1> on igb0
2020-06-03 12:30:16.906 <TRACE> ospf2:     length   28
2020-06-03 12:30:16.906 <TRACE> ospf2:     router   <router-1>
2020-06-03 12:30:16.906 <TRACE> ospf2:     mtu      1500
2020-06-03 12:30:16.906 <TRACE> ospf2:     imms     I M MS
2020-06-03 12:30:16.906 <TRACE> ospf2:     ddseq    147850135

2020-06-03 12:30:16.906 <RMT> ospf2: Bad DBDES packet from nbr <router-1> on igb0 - I-bit mismatch (7)

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