Robert – One last time…inline.
From: Robert Raszuk <[email protected]> Sent: Wednesday, December 1, 2021 11:12 AM To: Les Ginsberg (ginsberg) <[email protected]> Cc: Tony Przygienda <[email protected]>; Peter Psenak (ppsenak) <[email protected]>; Hannes Gredler <[email protected]>; lsr <[email protected]>; Tony Li <[email protected]>; Aijun Wang <[email protected]>; Shraddha Hegde <[email protected]> Subject: Re: [Lsr] BGP vs PUA/PULSE Les, > Pulse functionality will need to be enabled by the user – as with any other > IGP feature. That was not my point. My point was that you blindly PULSE irrespective if this is useful for anyone if a given PE went down. That is an architectural flaw. [LES:] Only if the feature is enabled. You have described a network where there is nothing useful that can be done in reaction to the pulse (or at least the operator believes that to be true). IN such a case do not enable the feature. We are providing another tool – it is in the hands of the operators as to when to use it. Les Best, R. On Wed, Dec 1, 2021 at 8:02 PM Les Ginsberg (ginsberg) <[email protected]<mailto:[email protected]>> wrote: Robert – Pulse functionality will need to be enabled by the user – as with any other IGP feature. If a given customer does not see that it is useful in their network, they need not enable it. If they have enabled it my comment regarding partition still applies. Thanx. Les From: Robert Raszuk <[email protected]<mailto:[email protected]>> Sent: Wednesday, December 1, 2021 9:02 AM To: Les Ginsberg (ginsberg) <[email protected]<mailto:[email protected]>> Cc: Tony Przygienda <[email protected]<mailto:[email protected]>>; Peter Psenak (ppsenak) <[email protected]<mailto:[email protected]>>; Hannes Gredler <[email protected]<mailto:[email protected]>>; lsr <[email protected]<mailto:[email protected]>>; Tony Li <[email protected]<mailto:[email protected]>>; Aijun Wang <[email protected]<mailto:[email protected]>>; Shraddha Hegde <[email protected]<mailto:[email protected]>> Subject: Re: [Lsr] BGP vs PUA/PULSE Hi Les, so one could argue that switching BGP traffic to the backup path is still a good idea. Well you are making a huge assumption that there is a backup path via a given domain. In modern networks true backup is build from CE POV and happens via another domain or via another service. Old fashioned design is stuck with the model of single provider locking customers. That's no longer sound. In such cases signalling PULSES adds only noise and not much benefit (other than few seconds of less traffic to be dropped after traversing the given domain network). Best, R.
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