OSPF router LSA

Dear Khalid

Please note that LSAs are advertised to different type of areas depend on LSA type.
below table explains in more details:



For more details about SPF principlas, please check below link:
http://support.huawei.com/hedex/pages/EDOC1000163385DEG0811X/05/EDOC1000163385DEG0811X/05/resources/dc/dc_feature_ospf_0003.html?ft=0&fe=10&hib=9.3.7.6.2.1&id=dc_feature_ospf_0003&text=Fundamentals%20of%20OSPF&docid=EDOC1000163385

For all details about OSPF:
Please read Router product docuementation :

Thank you for reply...what is the detail meaning of
Routet LSA Describes link status and link cost of a router.

hello author ，router-LSA just occur within the area ，but cannot send to out of the area，just LSA-3 ，LSA-4，LSA5 and LSA7 can send out of area
you can use the the command display ospf lsdb xx to show the detail of router-LSA

If one router have one interface in one area and
other interface in other area then one area
connected router LSA advertise to other area then how we say router LSA not advertise to other area.

hello author ，it is a good question. as you say( If one router have one interface in one area and
other interface in other area then one area
connected router LSA advertise to other area) first,this kind of ospf router can be called ABR,but the one -LAS still cannot send to other area ,you can use the display ospf lsdb command to check these ,by these command ，you can see different area have different DB. so one-LSA just sned in one area.