nanog mailing list archives
RE: [c-nsp] LDPv6 Census Check
From: <adamv0025 () netconsultings com>
Date: Mon, 15 Jun 2020 11:13:25 +0100
From: Saku Ytti <saku () ytti fi> Sent: Monday, June 15, 2020 11:02 AM On Mon, 15 Jun 2020 at 12:46, <adamv0025 () netconsultings com> wrote:Yes it can indeed, and that's moving towards the centre between theextreme cases that David laid out.It's about how granular one wants to be in identifying an end-to-end pathbetween a pair of edge nodes.I agree with you that MPLS is still better than IP, and I tried to illustrate that even enumerating every possible paths using deep labelstack is not a problem (and even that can be alleviated using hierarchy of LSPs). The entirety of my point is, if we were rational, we'd move towards increasingly efficient solutions. And technically everything we do in MPLS tunnels, we can do in IP tunnels and converse. Should we imagine a future where all features and functions are supported in both, it's clear we should want to do MPLS tunnels. Just the [IGP][BGP-LU] 8B overhead, compared to IP 40B overhead should drive the point home, and ultimately, that's the only difference, rest is implementation. And I'm saddened we've been marketed snake-oil like SRv6 with fake promises of inherent advantages or simplicity 'just IP'. We can do better than MPLS, absolutely. But IP is worse.
Yes I absolutely agree, Not to mention this whole thread is focused solely on next-hop identification -which is just the lowest of the layers of abstraction in the vertical stack. We haven’t talked about other "entities" that need identification like: VPNs, applications, policies (yes I'm looking at you VXLAN!) etc... - all of which are way better identified by a simple label rather than IPinIPinIP.... adam
Current thread:
- Re: [c-nsp] LDPv6 Census Check, (continued)
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- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
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- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
- Re: [c-nsp] LDPv6 Census Check Andrey Kostin (Jun 12)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
- Message not available
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 12)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 13)
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- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 15)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 15)
- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 15)
- Re: [c-nsp] LDPv6 Census Check Saku Ytti (Jun 15)
- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 15)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 15)
- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 16)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 16)
- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 16)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 17)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 15)
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- Re: [c-nsp] LDPv6 Census Check Christian Meutes (Jun 12)
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- Re: [c-nsp] LDPv6 Census Check Christian Meutes (Jun 14)
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- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 11)
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- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 11)