Re: SCTP heartbeat transmission interval in not working as expected

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@Vlad - he only has single-homed here per the trace he sent (which the
list presumably filtered.)
@Ravi - are you inducing impairments in the network? Reason I ask is
in the trace, your association comes up and then .82 sends data chunks
in frames 5 and 6 - the response from .5 (frame 7) is a GAP-SACK for
the TSN in frame 6, indicating the DATA chunk in frame 5 was lost
somehow... If you have network impairments (either intentionally, or
otherwise) - then our best-case suggestions above will be off as you
will likely incur RTO doubling etc. For the random sampling of idle HB
intervals I looked at later in the trace (initiated by .82), they all
seem to fit the expected range as described above.

Cheers,
malc.
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