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Re: [trill] Query on RFC 6325 - Appointed forwarder of Access Port

Abhinav <nitks.abhinav@gmail.com> Sun, 27 December 2015 14:12 UTC

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From: Abhinav <nitks.abhinav@gmail.com>
Date: Sun, 27 Dec 2015 09:12:42 -0500
To: Donald Eastlake <d3e3e3@gmail.com>
Archived-At: <http://mailarchive.ietf.org/arch/msg/trill/7hTEdPy6quh0kqjVvKLuFeRJ1-Q>
Cc: "trill@ietf.org" <trill@ietf.org>
Subject: Re: [trill] Query on RFC 6325 - Appointed forwarder of Access Port
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Hi Donald,

That's correct , It should be part of 
End-station service disable (trunk port) bit.

Thanks,
Abhinav Bhatia

Sent from my iPhone

On Dec 26, 2015, at 22:57, Donald Eastlake <d3e3e3@gmail.com> wrote:

> Hi AB,
> 
> Thanks for your comment. My apologies for my slow reply.
> 
> You seem to have found an error in RFC 6325. As far as I can tell, the
> text you point out ("If the DRB RB1 does not have this bit set, but
> neighbor RB2 on the
>      link does have the bit set, then RB1 does not appoint RB2 as
>      appointed forwarder for any VLAN, and none of the RBridges
>      (including the pseudonode) report RB2 as a neighbor in LSPs.")
> should be part of the previous bullet point, the one related the
> "End-station service disable (trunk port) bit", not the bullet point
> where it currently appears about the "TRILL traffic disable (access
> port) bit".
> 
> I'll submit an Errata.
> 
> Thanks,
> Donald
> =============================
> Donald E. Eastlake 3rd   +1-508-333-2270 (cell)
> 155 Beaver Street, Milford, MA 01757 USA
> d3e3e3@gmail.com
> 
> On Wed, Dec 9, 2015 at 10:15 PM, Abhinav Bhatia <nitks.abhinav@gmail.com> wrote:
>> Hello,
>> 
>> In RFC 6325, Section 4.9.1 RBridge Port Configuration states that:
>> "
>> 
>> If the DRB RB1 does not have this bit set, but neighbor RB2 on the
>>      link does have the bit set, then RB1 does not appoint RB2 as
>>      appointed forwarder for any VLAN, and none of the RBridges
>>      (including the pseudonode) report RB2 as a neighbor in LSPs."
>> 
>> The above text is from the "TRILL traffic disable (access port) bit" section
>> bit set refers to access port.
>> 
>> According to my understanding after going through RFC 6439 (appointed
>> forwarders). AF assignment does not happen for trunk port (End Station
>> service disable) and only happen for access port (Disable TRILL traffic) or
>> when both access and trunk bits are 0.
>> 
>> But the statement in RFC is looking contradictory, please clarify on it.
>> 
>> Thanks,
>> AB
>> 
>> 
>> _______________________________________________
>> trill mailing list
>> trill@ietf.org
>> https://www.ietf.org/mailman/listinfo/trill
>>

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