Re: [Teas-ns-dt] Isolation
Kiran Makhijani <kiranm@futurewei.com> Mon, 10 February 2020 23:03 UTC
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From: Kiran Makhijani <kiranm@futurewei.com>
To: John E Drake <jdrake=40juniper.net@dmarc.ietf.org>, "teas-ns-dt@ietf.org" <teas-ns-dt@ietf.org>
Thread-Topic: [Teas-ns-dt] Isolation
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Date: Mon, 10 Feb 2020 23:03:22 +0000
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Subject: Re: [Teas-ns-dt] Isolation
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John, Thanks for kick starting isolation dialogue. I have concerns though. I think performance isolation doesn’t sound right. To me, in a transport slice if an objective is no met - performance is not met. As for the reachability isolation, even without a slice, mis-delivery of packets is a no-no. the way I read it means - guarantee of packets being delivered to right destination. This is too fundamental to be called out as an isolation. I looked at enhanced-vpn draft and was not entirely convinced with the text there either. In my opinion, isolation can be associated to any network resource used by a transport slice. For instance, how to isolate bandwidth, port, FIB, policy, ACLs, (VNF - CPU, memory - etc.) - physically or logically. -Kiran On 2/10/20, 5:19 PM, "Teas-ns-dt on behalf of John E Drake" <teas-ns-dt-bounces@ietf.org on behalf of jdrake=40juniper.net@dmarc.ietf.org> wrote: My list currently consists of: Protection isolation - a failure in the network will not impact a customer's service for longer than X seconds, where X is a number in the range 50 msecs to some number of seconds, as specified in the SLO Reachability isolation - a customer's packets will not be misdelivered to another customer with a probability of X, where X is a percentage in the range 100 to some lower percentage, as specified in the SLO Performance isolation - a customer's performance related SLO parameters will not be degraded by more than X, where X is a percentage in the range of 0 to some higher percentage, as specified in the SLO Yours Irrespectively, John Juniper Business Use Only -- Teas-ns-dt mailing list Teas-ns-dt@ietf.org https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fteas-ns-dt&data=02%7C01%7Ckiranm%40futurewei.com%7Cb7a9e35df627453a14c508d7ae44f40c%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637169483487700284&sdata=7Ah9D2GrBbWfoehEsEtNC%2FEWP9Lu%2FQRFjWUc87aA4hE%3D&reserved=0
- [Teas-ns-dt] Isolation John E Drake
- Re: [Teas-ns-dt] Isolation Kiran Makhijani
- Re: [Teas-ns-dt] Isolation Greg Mirsky
- Re: [Teas-ns-dt] Isolation Dongjie (Jimmy)
- Re: [Teas-ns-dt] Isolation Stewart Bryant