There is only one area 6 with several ABR. It is like the diagram I attached here. And for your reference I want to point out that we are use PE router to provide services our customers which have both interface connected under the same ABR for redundancy or it may connected under different ABR which has a common area 6.
Please let me know if anything needed to understand my topology.
Original Message:
Sent: 02-25-2024 19:46
From: Olivier Benghozi
Subject: No other ABR information found in multi area ospf
But is there only one area 6 with several ABRs inside, or are there five different «area 6» ? :)
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Olivier Benghozi
Original Message:
Sent: 02-25-2024 14:47
From: SOUMEN GHOSH
Subject: No other ABR information found in multi area ospf
Hi Olivier
Hope your are doing well !!!
I'm currently running my network according to the diagram I've attached. I have noticed that I have four identical ABRs (identifiers/information) in the area 6 database. This is why I'm wondering why I'm not receiving the same ABR information like the other routers (R1/R2/R3/R4). Can you help me identify where I might be missing this information in the area 6 database on R5?
Regards
Soumen
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SOUMEN GHOSH
Original Message:
Sent: 02-07-2024 09:08
From: Olivier Benghozi
Subject: No other ABR information found in multi area ospf
In your diagram you actually have five different «areas 6», which is not expected to work (you are expected to have five different identifiers for the five current «areas 6»).
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Olivier Benghozi
Original Message:
Sent: 02-06-2024 06:58
From: SOUMEN GHOSH
Subject: No other ABR information found in multi area ospf
Dear Team
Please assist me in pinpointing the precise reason for the failure to identify all ABR (Area Border Router) information for area 6.6.6.6 in the attached multi-area OSPF scenario. In the database of Router 5 (R5), only one ABR (itself) is listed for area 6.6.6.6. However, upon inspection of the OSPF database on all other routers, I can observe that four ABRs are listed. I have provided the router configuration for clarity, and please let me know if additional information from the router configuration is required.
Thanks...
Configuration :
R3
set protocols ospf area 6.6.6.6 stub default-metric 67
set protocols ospf area 6.6.6.6 stub no-summaries
set protocols ospf area 6.6.6.6 network-summary-export OSPF-To-customer
set policy-options policy-statement OSPF-To-customer term A from route-filter 0.0.0.0/0 exact
set policy-options policy-statement OSPF-To-customer term A then accept
set policy-options policy-statement OSPF-To-customer term B then reject
set policy-options policy-statement OSPF-To-customer term else then reject
set interfaces irb unit 1455 family inet address 10.51.25.217/30
set protocols ospf area 0.0.0.0 interface irb.1455 priority 129
set vlans ospf-with-r5 vlan-id 1455
set vlans ospf-with-r5 l3-interface irb.1455
show ospf database area 6.6.6.6 summary :
Area 6.6.6.6:
165 Router LSAs
262 Network LSAs
4 Summary LSAs
R5
set interfaces xe-0/2/0 unit 0 family inet address 10.51.25.218/30
set protocols ospf area 0.0.0.0 interface xe-0/2/0.0 priority 1
set protocols ospf area 6.6.6.6 stub default-metric 100
set protocols ospf area 6.6.6.6 stub no-summaries
set protocols ospf area 6.6.6.6 network-summary-export OSPF-To-customer
set policy-options policy-statement OSPF-To-customer term A from route-filter 0.0.0.0/0 exact
set policy-options policy-statement OSPF-To-customer term A then accept
set policy-options policy-statement OSPF-To-customer term B then reject
set policy-options policy-statement OSPF-To-customer term else then reject
show ospf database area 6.6.6.6 summary
Area 6.6.6.6:
28 Router LSAs
29 Network LSAs
1 Summary LSAs
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SOUMEN GHOSH
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