Junos
Junos

Inline BFD vs distributed BFD

‎05-31-2019 02:03 AM

Hello everyone

 

I don't know the difference between inline BFD and distributed BFD.

 

I found Inline means that BFD/FLOW service run from PFE. so distributed BFD is equal to inline BFD?

 

 I'd be grateful if someone could tell me the difference in detail.

 

Thanks in advance.

3 REPLIES 3
Junos

Re: Inline BFD vs distributed BFD

‎05-31-2019 02:59 AM

Hello,

 

Distributed Mode is that Periodic packet management (ppmd) which is the daemon responsible for BFD is to be run on Routing Engine's CPU and line cards CPU , this is as opposed to centralized mode where it will be run on RE only.

Inline mode delegates the processing  to the forwarding ASIC (that is, to the hardware). By enabling inline mode the load on the CPU of the line-card is reduced and also  faster transmit and more aggressive detect time is achieved.

 

 

Regards,
A.A.
Junos

Re: Inline BFD vs distributed BFD

‎05-31-2019 06:42 AM
Junos

Re: Inline BFD vs distributed BFD

‎06-02-2019 09:48 PM

Hello

 

That was very helpful, thank you!

 

Regards.