[c-nsp] Incremental SFP (ISPF) - Provide any benefits "now"?

[CiscoNSP List]

Hey Adam - Have a TAC case open atm on ASR920 rLFA FRR (Tunnels being created, when they shouldnt, and not used)...anyway, from this case, MPLS, OSPF + ASR920 Dev teams have been working on it, and they have stated that "ISPF conf under router ospf is not recommended anymore. The command will soon be deprecated." - Its not related to the tac case, its was just a recommendation from them....I asked why is it being deprecated, and the reason they gave is that was introduced to improve convergence on slower processors, processors are fast now, so it is no longer needed.....somewhat strange, but I pressed them for more info, and that is all that they have provided so far...


________________________________
From: adamv0025 at netconsultings.com <adamv0025 at netconsultings.com>
Sent: Friday, 16 December 2016 11:31 PM
To: 'CiscoNSP List'; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] Incremental SFP (ISPF) - Provide any benefits "now"?

Hi,

> CiscoNSP List
> Sent: Friday, December 16, 2016 9:55 AM
>
> Hi,
>
>
> Quick question re ISPF - Seems to be a very old feature (Introduced 12.0?)
> that was more "efficient" than full SPF algorithm (Allows OSPF to converge
> faster)...but it appears Cisco are deprecating it, and I can only assume
> because it is no longer necessary on today's faster hardware?
>
What gives you the impression that cisco is deprecating iSPF please?
I think that at most they are deprecating the knob not the functionality.

adam

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