08-18-2021 10:50 AM
Hello everyone
I know that there is no inforamtion about LSA type 5 except lsa type7 in ASBR’s NSSA.
However, when I check the OSPF LSDB, AS External LSAs information was seen as below.
AS External LSAs
Link State ID Adv Router Seq# Age Chksum Tag
-------------------------------------------------------------
5.5.5.5 3.3.3.3 0xffffffff80000001 550 0x7e1e 0
Router LSAs for area 0.0.0.1
Link State ID Adv Router Seq# Age Chksum #Links
-------------------------------------------------------------
2.2.2.2 2.2.2.2 0xffffffff80000005 553 0xb00a 4
3.3.3.3 3.3.3.3 0xffffffff80000002 546 0x 58b 2
4.4.4.4 4.4.4.4 0xffffffff80000003 1183 0x176a 2
Summary LSAs for area 0.0.0.1
Link State ID Adv Router Seq# Age Chksum
-------------------------------------------------------------
12.12.12.0 2.2.2.2 0xffffffff80000001 1333 0xbb75
AS External Type 7 LSAs for area 0.0.0.1
Link State ID Adv Router Seq# Age Chksum Tag
-------------------------------------------------------------
0.0.0.0 2.2.2.2 0xffffffff80000001 1333 0xf2f1 0
5.5.5.5 3.3.3.3 0xffffffff80000001 550 0x4506 0
5.5.5.5 4.4.4.4 0xffffffff80000001 1183 0x4bf8 0
Could anybody let me know why As external LSA was seen??
Thanks in advance.
Regards.
09-16-2021 01:34 AM
Hi
Thanks for your help.
topology
Sw3 ospf config
Sw4 ospf config
09-09-2021 07:59 PM
Hi,
Would that be possible if you shared your OSPF config please? That might help to review that.
Cheers,
Tomasz