Re: [Idr] [Editorial Errata Reported] RFC8092 (4962)

[Ignas Bagdonas <[e-mail]>]

Hi there,

If the intention of the errata is to address the handling of duplicated 
large community attributes (i.e., multiple type 32 attributes present in 
UPDATE message) then it does not seem to be right. RFC7606 does not 
allow to have more than one meaningful attribute of the same type in a 
single UPDATE message, therefore the literal interpretation of "BGP 
Large Communities" attribute does not apply as only the first such 
attribute gets interpreted and all subsequent ones get ignored. RFC8092 
has both singular and plural form of term "large community" values used 
in different contexts, referring to either a single 12 octet large 
community value or to a whole large communities attribute.


Ignas


On 09/03/2017 15:21, RFC Errata System wrote:
> The following errata report has been submitted for RFC8092,
> "BGP Large Communities Attribute".
>
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=8092&eid=4962
>
> --------------------------------------
> Type: Editorial
> Reported by: Nikolai Malykh <[e-mail]>
>
> Section: 3
>
> Original Text
> -------------
>     Duplicate BGP Large Community values MUST NOT be transmitted.  A
>     receiving speaker MUST silently remove redundant BGP Large Community
>     values from a BGP Large Community attribute.
>
>
> Corrected Text
> --------------
>     Duplicate BGP Large Community values MUST NOT be transmitted.  A
>     receiving speaker MUST silently remove redundant BGP Large Community
>     values from a BGP Large Communities attribute.
>
>
> Notes
> -----
> Typo
>
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party
> can log in to change the status and edit the report, if necessary.
>
> --------------------------------------
> RFC8092 (draft-ietf-idr-large-community-12)
> --------------------------------------
> Title               : BGP Large Communities Attribute
> Publication Date    : February 2017
> Author(s)           : J. Heitz, Ed., J. Snijders, Ed., K. Patel, I. Bagdonas, N. Hilliard
> Category            : PROPOSED STANDARD
> Source              : Inter-Domain Routing
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG