XR2 was having a loopback in Area 20 , and normally it was injecting it as LSA 3 . R1 was get this LSA3 from 2 sides , from XR2 directly over the AREA 120 and from its PE over area 0 . The point is R1 always uses route send from the PE no matter how bad the metric was tot the PE ?!! . What is more supprising that if PE stopped redstibuting this routes R1 never uses the route from XR2 . Only when I shut down the inteface to the PE R1 starts using the route sent by XR2 .
Does this mean that if you have a link to the BB you must used for inter-area traffic ? and if you did not get this route from the BB do not ever use any LSA from any other non-BB area ?
Perhaps the most important paragraph regarding your question:
ABR expects summary LSAs from Area 0 only. This means there should be at least one adjacency in FULL state built over Area 0 interface. In case if ABR has such adjacency, it will ignore summary-LSAs received over non-backbone areas. These LSAs will be installed in the database, but not used for SPF calculations.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.