On Wednesday, February 19, 2014 06:55:08 AM Dmitry Valdov wrote: > No, it doesn't depend on an update itself, if you have > "reload" type of SMU. It takes long time because it > loads RSP(s) first, and once it completed it starts to > load linecard(s) which have separate copy of IOS XR > running ot them. It loads all linecards at the same > time, so reloading of 9001 or 9010 takes almost the same > time.
Well, if you have an ASR9010 full of line cards vs. an ASR9001, the ASR9001 should load its line cards quicker because it doesn't have that many to do, even in a maximum configuration. > But if you have "Hitless" or "Traffic loss" SMU's, it > won't reload the box, it just does processes restart on > all cards and may be fast reset some hardware.. Yes, this is the theory. I've updated several SMU's that were categorized as "hitless", that actually took down line cards and/or fabrics (but not necessarily the RSP's). For me, even a hitless SMU will be deployed as "hitful", because Cisco can't be trusted to get this right all the time. Mark.
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