nanog mailing list archives
Re: [c-nsp] LDPv6 Census Check
From: Mark Tinka <mark.tinka () seacom mu>
Date: Thu, 11 Jun 2020 23:02:51 +0200
On 11/Jun/20 17:32, David Sinn wrote:
Respectfully, that is deployment dependent. In a traditional SP topology that focuses on large do everything boxes, where the topology is fairly point-to-point and you only have a small handful of nodes at a PoP, labels can be fast, cheap and easy. Given the lack of ECMP/WECMP, they remain fairly efficient within the hardware. However if you move away from large multi-chip systems, which hide internal links which can only be debugged and monitored if you know the the obscure, often different ways in which they are partially exposed to the operator, and to a system of fixed form-factor, single chip systems, labels fall apart at scale with high ECMP.
I'm curious about this statement - have you hit practical ECMP issues with label switching at scale? We have ECMP'ed label switch paths with multiple paths for a single FEC all over the place, and those work fine both on Cisco and Junos (of all sizes), both for IPv4 and IPv6 FEC's. Have done for years. Unless I misunderstand your concern. Mark.
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- RE: [c-nsp] LDPv6 Census Check, (continued)
- 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)
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- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 12)
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- RE: [c-nsp] LDPv6 Census Check adamv0025 (Jun 15)
- Re: LDPv6 Census Check Saku Ytti (Jun 10)
- Re: LDPv6 Census Check Mark Tinka (Jun 10)
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- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 10)
- Re: LDPv6 Census Check Radu-Adrian Feurdean (Jun 11)
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- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Nick Hilliard (Jun 11)
- Re: [c-nsp] LDPv6 Census Check Mark Tinka (Jun 11)