nanog mailing list archives
RE: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?)
From: <adamv0025 () netconsultings com>
Date: Mon, 22 Jun 2020 14:49:54 +0100
From: Masataka Ohta <mohta () necom830 hpcl titech ac jp> Sent: Monday, June 22, 2020 2:17 PM adamv0025 () netconsultings com wrote:But MPLS can be made flow driven (it can be made whatever the policy dictates), for instance DSCP driven.The point of Yakov on day one was that, flow driven approach of Ipsilon
does
not scale and is unacceptable. Though I agree with Yakov here, we must also eliminate all the flow driven approaches by MPLS or whatever.
First I'd need a definition of what flow means in this discussion are we considering 5-tuple or 4-tuple or just SRC-IP & DST-IP, is DSCP marking part of it? Second, although I agree that ~1M unique identifiers is not ideal, can you provide examples of MPLS applications where 1M is limiting? What particular aspect? Is it 1M interfaces per MPLS switching fabric box? Or 1M unique flows (or better flow groups) originated by a given VM/Container/CPE? Or 1M destination entities (IPs or apps on those IPs) that any particular VM/Container/CPE needs to talk to? Or 1M customer VPNs or 1M PE-CPE links, if PE acts as a bottleneck? adam
Current thread:
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?), (continued)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Mark Tinka (Jun 21)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Masataka Ohta (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Mark Tinka (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Randy Bush (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Fletcher Kittredge (Jun 23)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Masataka Ohta (Jun 23)
- RE: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) adamv0025 (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Robert Raszuk (Jun 21)
- RE: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) adamv0025 (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Masataka Ohta (Jun 22)
- RE: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) adamv0025 (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Mark Tinka (Jun 22)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Masataka Ohta (Jun 23)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Mark Tinka (Jun 21)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Robert Raszuk (Jun 20)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Mark Tinka (Jun 21)
- Re: why am i in this handbasket? (was Devil's Advocate - Segment Routing, Why?) Mark Tinka (Jun 21)
- Re: Devil's Advocate - Segment Routing, Why? Masataka Ohta (Jun 19)
- Re: Devil's Advocate - Segment Routing, Why? Robert Raszuk (Jun 19)
- Re: Devil's Advocate - Segment Routing, Why? Mark Tinka (Jun 20)
- Re: Devil's Advocate - Segment Routing, Why? Baldur Norddahl (Jun 20)