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Re: [IPv6 SR] Regarding 128 bits IPv6 address in Segment List of SRH

Brian E Carpenter <brian.e.carpenter@gmail.com> Fri, 10 February 2017 20:02 UTC

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Subject: Re: [IPv6 SR] Regarding 128 bits IPv6 address in Segment List of SRH
To: "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>, Veerendranatha Reddy Vallem <veerendranatharv@huawei.com>
References: <73BFDDFFF499304EB26FE5FDEF20F7885086FA74@blreml501-mbx> <3E1CCF0A-41E5-49E9-82FA-BC96F689A69D@cisco.com> <73BFDDFFF499304EB26FE5FDEF20F7885086FE9C@blreml501-mbx> <2DE89697-41FA-4389-9CDE-A91B7ADE37D1@cisco.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
Message-ID: <771e1235-1a60-806d-3497-276d15c98778@gmail.com>
Date: Sat, 11 Feb 2017 09:02:52 +1300
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Cc: "draft-ietf-ospf-ospfv3-segment-routing-extensions@tools.ietf.org" <draft-ietf-ospf-ospfv3-segment-routing-extensions@tools.ietf.org>, "ospf@ietf.org" <ospf@ietf.org>, "ipv6@ietf.org" <ipv6@ietf.org>, "draft-ietf-6man-segment-routing-header@ietf.org" <draft-ietf-6man-segment-routing-header@ietf.org>
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On 10/02/2017 22:31, Stefano Previdi (sprevidi) wrote:
...
> In the IPv6 dataplane a SID being an IPv6 address, it makes the SID a global IPv6 address (even in the case of Adj-SIDs). This of course is orthogonal to the control plane that may or may not advertise such address.

By the way, be careful with the phrase "global IPv6 address". I think you mean "global scope" (which
includes ULA), not "globally reachable" (which excludes ULA).

   Brian

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