Hi, On Sat, Jan 31, 2009 at 11:14:33AM +0100, Oliver Boehmer (oboehmer) wrote: > Gert Doering <> wrote on Friday, January 30, 2009 09:08: > > I'm a bit confused. [..]
> The SXH3a-SXH3a session is running BFD echo mode (as it's supported by
> both ends), as indicated in "using echo function with 50 ms interval".
>
> When you configure BFD in Echo mode, there are two types of packets
> traversing across the two ends
> 1) BFD Echo packets 2) BFD Control/Async packets.
Ah! As I said, I'm a bit confused :-)) - but the confusion came from
not fully understanding BFD here. I wasn't aware that there are two
different sort of "check the link mechanisms" (echo and async).
This explains things, and why it "looked fast" on the SXH3a-SXF link
(because SXF doesn't support the echo mode).
[..]
> you can also disable bfd echo mode on the interface ("no bfd echo") if
> you want to use the same BFD mechanism (and hence the same output) on
> all your links..
As long as it's doing The Right Thing, and I understand how to read the
output, I'm fine :-)
Need re-read the relevant RFCs and I-D drafts.
Thanks again,
gert
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Gert Doering - Munich, Germany [email protected]
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