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Re: [Idr] Suggestion to use a more generic name for Topology-Type and ISP-sub-TLV in draft-ietf-idr-sdwan-edge-discovery-05

Linda Dunbar <linda.dunbar@futurewei.com> Thu, 02 March 2023 04:19 UTC

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From: Linda Dunbar <linda.dunbar@futurewei.com>
To: Shengcheng <shengcheng@huawei.com>, "draft-ietf-idr-sdwan-edge-discovery@ietf.org" <draft-ietf-idr-sdwan-edge-discovery@ietf.org>
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Thread-Topic: Suggestion to use a more generic name for Topology-Type and ISP-sub-TLV in draft-ietf-idr-sdwan-edge-discovery-05
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Date: Thu, 02 Mar 2023 04:19:13 +0000
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Subject: Re: [Idr] Suggestion to use a more generic name for Topology-Type and ISP-sub-TLV in draft-ietf-idr-sdwan-edge-discovery-05
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Victo,

Thank you very much for the comments and the suggestions.
See my reply inserted below:

Thanks, Linda

From: Shengcheng <shengcheng@huawei.com>
Sent: Tuesday, February 28, 2023 3:08 AM
To: draft-ietf-idr-sdwan-edge-discovery@ietf.org
Cc: idr@ietf.org
Subject: Suggestion to use a more generic name for Topology-Type and ISP-sub-TLV in draft-ietf-idr-sdwan-edge-discovery-05

Dear authors,

I have two comments:


1.      Section 6.1 (NLRI for SDWAN Underlay Tunnel Update) has a two octets field called "Topology-Type".  We think it is better to use a more generic name for this type to make it easier for future expansion.  We think using a generic type, such as "NLRI Type" or "Route-Type" is much better than the "Topology-Type".
[Linda] That is a good suggestion. RFC9015 (BGP for SFC) uses "Route Type" field to indicate different types of encoding carried in the NLRI. Maybe we can follow the tradition.
If we don't hear any objections, we will change the field name to "Route Type".


2.      The ISP-sub-TLV in the Section 6.4(Extended Port Attribute Sub-TLV)  is used for future expansion. We think it is better to change the name to a generic one, such as Transport-sub-TLV.
[Linda] good suggestion. "ISP-sub-TLV" was meant to carry information about the underlay network characteristics, such as bandwidth, access types, etc. Again, if we don't hear any objections, we can change the field name to "Transport -subTLV.



Thank you for the consideration.


Regards
Victo Sheng

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