PE -CE OSPF L3VPN

[networkinblood]

Hi,   CE1----PE1-----MPLS CLOUD ---PE2---CE2  IF CE1 generate O route (LSA 1,2) and via MPLS CLOUD CE2 receive that route . At CE2 this route will OI route (LSA3) OR E1,E2 (LSA5) ?????     Thanks in advance for revert .

[MHM Cisco World · Accepted solution]

It depend on domain-id you config in both side, 

If you config the same then it will be O IA if it different then it will be O E2.

[networkinblood]

Thnks for revert Sir , I will read much more about DOMAIN ID , DOWN BIT, vrf capibility , vrf lite , DOWN BIT IGNORE and loop prevention in OSPF , SHAM LINK  and come back to you much more doubts . once again  SIr ,thnks for revert .

[networkinblood]

Hi sir , I hv one more doubt related to same topic , in case of address
family ipv4 when we redistribute any route in to OSPF it will be by default
LSA 5 ( external LSA ) ..so why in case of address family vpnv4 its not by
default LSA 5 ???
Thnks in advance for revert

[MHM Cisco World]

https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/118800-configure-ospf-00.html

see the CE1-PE1 and what is LSA type it redistribute and how PE2 handle this LSA.

Note:- domain-tag change from O E2 to O IA only for LSA5.