nanog mailing list archives
Re: SRv6 Capable NOS and Devices
From: Saku Ytti <saku () ytti fi>
Date: Wed, 12 Jan 2022 18:27:46 +0200
On Wed, 12 Jan 2022 at 18:20, <aaron1 () gvtc com> wrote:
Like ytti (saku) mentioned, with SR/SPRING the IGP is finally carrying the Label/Sid, so we no longer need a label distribution mechanism running alongside the IGP (don't need LDP or RSVP). And for SRv6 vice SR-MPLS, the SID is now the IPv6 address, and not the MPLS Label. So we don't even need MPLS, but can accomplish network virtualization using a pure IPv6 core. Reminds me of Cell Mode MPLS vs Frame Mode MPLS... whereas the ATM Cell header VPI/VCI was repurposed as the MPLS label, until we went with straight MPLS shim headers.
No SRv6 is MPLS labeling where label is carried inside IP instead before the IP header. Layering violation which increases complexity and cost for no other purpose except dishonest marketing about 'it is IP, you already understand it, MPLS is hard'. -- ++ytti
Current thread:
- SRv6 Capable NOS and Devices Colton Conor (Jan 11)
- Re: SRv6 Capable NOS and Devices Vincent Bernat (Jan 11)
- Re: SRv6 Capable NOS and Devices Saku Ytti (Jan 11)
- Re: SRv6 Capable NOS and Devices Mark Tinka (Jan 11)
- RE: SRv6 Capable NOS and Devices Adam Thompson (Jan 11)
- Re: SRv6 Capable NOS and Devices Mark Tinka (Jan 11)
- Re: SRv6 Capable NOS and Devices Saku Ytti (Jan 12)
- RE: SRv6 Capable NOS and Devices aaron1 (Jan 12)
- Re: SRv6 Capable NOS and Devices Saku Ytti (Jan 12)
- Re: SRv6 Capable NOS and Devices Sander Steffann (Jan 12)
- Re: SRv6 Capable NOS and Devices Dale W. Carder (Jan 12)
- Re: SRv6 Capable NOS and Devices Randy Bush (Jan 12)
- Re: SRv6 Capable NOS and Devices Sander Steffann (Jan 12)
- Re: SRv6 Capable NOS and Devices Colton Conor (Jan 12)
- Re: SRv6 Capable NOS and Devices Mark Tinka (Jan 12)
- Re: SRv6 Capable NOS and Devices Saku Ytti (Jan 13)
- Re: SRv6 Capable NOS and Devices Colton Conor (Jan 15)
- Re: SRv6 Capable NOS and Devices -> MPLS instead? Raymond Burkholder (Jan 15)