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

Veerendranatha Reddy Vallem <veerendranatharv@huawei.com> Mon, 13 February 2017 14:20 UTC

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From: Veerendranatha Reddy Vallem <veerendranatharv@huawei.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, "Stefano Previdi (sprevidi)" <sprevidi@cisco.com>
Thread-Topic: [IPv6 SR] Regarding 128 bits IPv6 address in Segment List of SRH
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Date: Mon, 13 Feb 2017 14:20:29 +0000
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Subject: Re: [OSPF] [IPv6 SR] Regarding 128 bits IPv6 address in Segment List of SRH
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Using ULA for Adj segment/special segment is good option. 
We can generate these addresses automatically and assign for adjacent  neighbors.

Thanks and Regards,
Veerendranath

-----Original Message-----
From: Brian E Carpenter [mailto:brian.e.carpenter@gmail.com] 
Sent: 11 February 2017 01:33
To: Stefano Previdi (sprevidi) <sprevidi@cisco.com>; Veerendranatha Reddy Vallem <veerendranatharv@huawei.com>
Cc: draft-ietf-ospf-ospfv3-segment-routing-extensions@tools.ietf.org; ospf@ietf.org; ipv6@ietf.org; draft-ietf-6man-segment-routing-header@ietf.org
Subject: Re: [IPv6 SR] Regarding 128 bits IPv6 address in Segment List of SRH

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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