Re: [Lsr] Dynamic flow control for flooding

[David Lamparter <[e-mail]>]

Hi Les,


On Tue, Jul 23, 2019 at 08:29:30PM +0000, Les Ginsberg (ginsberg) wrote:
> [...] As network-wide convergence depends upon fast propagation of LSP
> changes -

you're losing me between that previous part and the next:

> - which in turn requires consistent flooding rates on all interfaces
> enabled for flooding [...]

I understand and follow your reasoning if we have a classical timer that
limits flooding rates per LSP.  If we get multiple updates to the same
LSP, dissimilar flooding rates imply we might just have sent out the
previous now-outdated state, and we block for some potentially lengthy
time before sending out the most recent version of that LSP.

I don't understand how we get delayed propagation of LSP changes if we
employ some mechanism to raise the flooding rate to something based
around the target system's capabilities.

Could you elaborate on how we get delayed LSP propagation in this
scenario?

Thanks,


-David