On 30/08/2013 21:59, Tom Cooper wrote: > Software by Cisco. That's the first mistake.
well no, it's not. Cisco is a very large company with a huge number of programmers working on a wide variety of platforms. Writing them all off like this is unfair. In the case of e.g. XR, the compiled binaries work out at 300 megs of compressed data. The sheer quantity of code that goes into that is enormous, so let's not expect that it's going to be bug free. The installation process (and consequently some aspects of the development model) could do with a really serious rethink, but the underlying code is rather good actually. The goal of modular software is great - i.e. that you can upgrade and reset some components separately to others. The reality is that resetting isis or bgp or ospf is always going to cause downtime. You can make noise about ISSU, but how many high end platforms/vendors actually have a working ISSU implementation? In the case of the N1K, it's a virtual switch which taps into a proprietary vmware API which changes from revision to revision. Most of the documentation is variations on a theme about how to get the combination of the old esxi/n1k image upgraded to the new version. It's also improved since the first versions were released. Nick _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/