ospf type 4 LSA:s generated by bird
Is there any way to control if bird generates type 4 LSAs? If bird originates type 4 LSA:s, does that mean that bird has taken the role as an ASBR?
On Wed, Jan 18, 2023 at 05:35:04PM +0000, Kenth Eriksson wrote:
Is there any way to control if bird generates type 4 LSAs? If bird originates type 4 LSA:s, does that mean that bird has taken the role as an ASBR?
Hi Type 4 LSAs are generated automatically on ABR (not ASBR), i.e. if there are two or more areas in the OSPF domain, for each known ASBR and each non-stub area. For details, see check_sum_rt_lsa(). -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
Type 4 LSAs are generated automatically on ABR (not ASBR), i.e. if there are two or more areas in the OSPF domain, for each known ASBR and each non-stub area. For details, see check_sum_rt_lsa().
Thanks, the type 4 LSA:s originated from bird seems to be in order. But my problem here is that it seems bird sends router-LSAs with bit E set indicating that it is an ASBR. That part does not seem correct to me. Where in the code that happens and what would cause bird to set the E bit?
participants (2)
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Kenth Eriksson -
Ondrej Zajicek