Hello

In practice AREA6 contains much more routes (about 150), I send a small segment. The same router (R1) has other area NSSA - AREA61:

bird> show ospf lsadb area 61

Area 0.0.0.61

Type   LS ID           Router          Sequence   Age Checksum
0001 xxx.127.92.5    xxx.127.92.5     800007fe   896    5975
0003 0.0.0.0         xxx.127.92.5     800007e5   388    4a7f
0001 xxx.127.92.237 xxx.127.92.237   800007fe   562    7087
0007 10.1.0.0       xxx.127.92.237   800007e4   534    ec94
0007 10.1.1.0        xxx.127.92.237   800007e4   534    e19e
0007 10.2.1.0        xxx.127.92.237   8000066d   534    c730
0007 xxx.110.206.252 xxx.127.92.237   800007e5   534    6e96

show ospf state:

    router 212.127.92.237
        distance 10
        router 212.127.92.5 metric 10
        stubnet 212.127.92.236/30 metric 10
        nssa-ext 10.1.0.0/24 metric2 20 via 212.127.92.237
        nssa-ext 10.1.1.0/24 metric2 20 via 212.127.92.237
        nssa-ext 10.2.1.0/24 metric2 20 via 212.127.92.237
        nssa-ext 79.110.206.252/30 metric2 20 via 212.127.92.237

and same routes are not translated too:

root@R1:~# birdc show ospf lsadb | grep 10.1.1.0
0007 10.1.1.0        212.127.92.237   800007e4   181    e19e
root@R1:~# birdc show ospf lsadb | grep 10.2.1.0
0005 10.2.1.0        212.127.92.5     800005e3   546    e78d
0007 10.2.1.0        212.127.92.237   8000066d   184    c730
root@R1:~#

In fact I have got 3 routers at AREA0 and about 6 routes with other areas (NSSA). On each of the routers (3) in the backbone (ABR) I observed a selective no-translation TYPE7 LSA to TYPE5 LSA.

I do a restart ospf protocol and for example (from AREA6) 10.19.80.0 with has not been translated, Now it is:

root@R1:~# birdc show ospf lsadb | grep 10.19.80
0005 10.19.80.255 212.127.92.5 80000001 505 36d8
0007 10.19.80.255 212.127.92.253 800009c0 558 4ff5

but other routes is has not:

root@R1:~# birdc show ospf lsadb | grep 10.19.142
0007 10.19.142.255 212.127.92.253 800009c0 585 a264
root@R1:~#

I set a debug ospf protocol OSPF before restart protocol I do not see strange.

Regards,
Konrad Kręciwilk

W dniu 14.07.2019 o 22:08, Ondrej Zajicek pisze:

Hello,

I have problem with selective no-translation TYPE7 LSA to TYPE5 LSA on ABR.
Scheme: https://ibb.co/mhbxwmy


Hello

Just tested that, works for me (with routes from your example). What is
your output of 'show ospf state'? Don't you have any suspicious messages
in logs?

-- 
Pozdrawiam,
Konrad Kręciwilk
Inżynier sieci
Korbank S.A.
GSM: +48 883 131 165
tel: +48 71 735 15 31
e-mail: konrad.kreciwilk@korbank.pl

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