Re: [lisp] 6833bis - NMR with locator count !=0

"Victor Moreno (vimoreno)" <vimoreno@cisco.com> Tue, 22 August 2017 06:32 UTC

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From: "Victor Moreno (vimoreno)" <vimoreno@cisco.com>
To: "Joel M. Halpern" <jmh@joelhalpern.com>
CC: LISP mailing list list <lisp@ietf.org>
Thread-Topic: [lisp] 6833bis - NMR with locator count !=0
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Date: Tue, 22 Aug 2017 06:32:43 +0000
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References: <6467BB43-AB19-48C4-A3FD-34D5C2E092E8@cisco.com> <d6318116-0157-302d-abe3-4181c7859e19@joelhalpern.com>
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Subject: Re: [lisp] 6833bis - NMR with locator count !=0
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Would be mainly conveying the RLOCs of the feasible PETRs dynamically.
As PETRs are brought on-line in the network, they can be configured/added in the Mapping System, rather than touching a multitude of ITRs.
This would also allow a more elegant definition for the support of a default exit to the Internet in the Extranet case defined in the lisp-vpn draft. In this scenario, the RLOC record would convey the RLOC of the PETR plus the IID to which the Internet connects at the PETR.

-v

> On Aug 21, 2017, at 11:12 PM, Joel M. Halpern <jmh@joelhalpern.com> wrote:
> 
> Can you explain what information you are conveying with the RLOCs?  I think we would need a clear use case before changing the spec.
> 
> Yours,
> Joel
> 
> On 8/22/17 2:07 AM, Victor Moreno (vimoreno) wrote:
>> Dear WG,
>> As we put some of our specifications to the test in deployments, we have found the ability to return RLOCs dynamically in an NMR to be compelling in a variety of deployment scenarios. Particularly in Networks with multiple Internet exit points.
>> What are the thoughts of the group on allowing NMRs with a locator count !=0?
>> One option to indicate that a map-reply is an NMR could be to assign one of the reserved bits as an NMR flag.
>> Would like to gauge the inclination of the WG before proposing text/edits.
>> -v
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