On 8/12/21 19:57, Jon Lewis wrote:
Yeah...changes to the network could suddenly run such a box out of FIB
resources, and you could easily be wrong when predicting how much
longer a box has for it's "full routes" days...but the alternatives
are "don't do full routes" or replace the box much sooner.
In that respect, it's somewhat remarkable that Arista even developed
the feature. "We can sell them newer hardware with larger FIB
capabilities, or offer a software update that extends the life of the
gear they've already bought." What company chooses the latter? :)
There was a time when vendors were actually ran by engineers :-).
I recall asking for the feature from Cisco around 2011/2012, for the
ME3600X/3800X, and that's how it arrived. The team developing that breed
of box were excited about the prospect of its success, since I began
working with them to develop it in 2009. So they rolled out as many
features as I could help them make sense of, and BGP-SD was one of them.
The good news is it made it into IOS XE, and became available for a ton
of other platforms, the ASR920 included.
Nowadays, one wonders who's actually running the show at vendor-land...
Mark.