On Fri, Feb 23, 2018 at 8:06 AM Justin M. Streiner <[email protected]> wrote:
> Vendors also sometimes conflate "ISSU" and "hitless", or their > documentation doesn't always make it clear that an ISSU carries the > potential of outages. For what it is worth - there is a NX-OS command for checking whether an ISSU will be hitless: "show install all impact ?" will show you what you need to know. We don't run much Nexus stuff, but we did upgrade our Nexus 7010 from version 4.something all the way to 7.2 with only ISSU. We had to do some careful planning, and some ISSU did fail, but the failure and rollback was just as hitless as the successes, and it told us what needed to be corrected for the future. So far so good, with this strategy. I am very surprised to hear people talking about their problems with the ISSU process. I could not be happier with it. # show system uptime System start time: Sat Dec 20 17:54:34 2014 System uptime: 1161 days, 4 hours, 36 minutes, 22 seconds -- -- Hunter Fuller Network Engineer VBH Annex B-5 +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Systems and Infrastructure _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
