Hi,
Juniper supports Centralized and Distributed BFD where centralized BFD refer to BFD that runs on the Routing Engine and Distributed is PFE based.
Below command tells if BFD is centralized or Distributed:
OSPFv2
lab@mx240-3-re0> show ppm adjacencies detail
Protocol: OSPF2, Hold time: 40000, IFL-index: 359
Distributed: FALSE
OSPF source key: 88.1.1.2, OSPF area ID: 0.0.0.0
In the example above, the “Distributed” flag is false. Hence, OSPF is running on RE PPMD
BFD
lab@mx240-3-re0# run show ppm adjacencies detail
Protocol: BFD, Hold time: 900, IFL-index: 359
Distributed: TRUE
BFD discriminator: 16, BFD routing table index: 0
Here, the “Distributed” flag is TRUE. Hence BFD is distributed to PFE
Please refer the below documents for more details:
https://kb.juniper.net/InfoCenter/index?page=content&id=KB31595&pmv=print&actp=RSS&searchid=&type=currentpaging
https://www.juniper.net/documentation/en_US/junos/topics/concept/bfd-distributed.html
Regards,
Rahul
Please mark my solution as accepted if it helped.