Re: [Idr] IETF LC for IDR-ish document <draft-ietf-grow-bgp-reject-05.txt> (Default EBGP Route Propagation Behavior Without Policies) to Proposed Standard

Job Snijders <> Thu, 20 April 2017 09:56 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id E622012EBEE for <>; Thu, 20 Apr 2017 02:56:28 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -4.199
X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-2.8, RCVD_IN_SORBS_SPAM=0.5] autolearn=ham autolearn_force=no
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id ayz3HwQnxC6B for <>; Thu, 20 Apr 2017 02:56:28 -0700 (PDT)
Received: from ( []) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by (Postfix) with ESMTPS id A2E3812EBF4 for <>; Thu, 20 Apr 2017 02:56:27 -0700 (PDT)
Received: by with SMTP id z109so32016999wrb.1 for <>; Thu, 20 Apr 2017 02:56:27 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=HWBVPJJgR9EocAt3ZxXDusN4R6a56/V7t11xd7Ac7kE=; b=JIih2MXx8nahOI/2oPnuciQT1t2h+5KEYoVrq9SIW90zXgBcqjTVh3tFvm1/C4T5MZ 30ANfgK63o5j2pWxPiVxlPmI/qHGShYo2CuVdCzOO63zVa3a/Nedl3M158wMDBJRCgo/ kU4zSMn4NRAlboQ1iDfZkw73y2+k9cknLwc3PjWOzxZFoWTPex2/5naVgrziM0rqGJJ1 bH67xRbn2duPtKlMxYTIa9YPxX6pC9DgkdGTmG+WgAlduJDt/Vj8CojlY4xhCdslMEZY Q6+cujQmYsFcFncs8Oa7hlCQiLo2K9Zt+a0r8bUapp5AJqVnEnID/rGT1NzG2pedvNro NuEQ==
X-Gm-Message-State: AN3rC/5VbWZBx78YcF94VKUrSrSTZZq+XQppUVxKVasMrGtpL9A66Nto 7SRLDCEgYy/Klg==
X-Received: by with SMTP id 20mr6426988wrz.199.1492682186131; Thu, 20 Apr 2017 02:56:26 -0700 (PDT)
Received: from localhost ([2001:67c:208c:10:4cc4:bdef:de0c:32e0]) by with ESMTPSA id r4sm6907208wra.69.2017. (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 20 Apr 2017 02:56:25 -0700 (PDT)
Date: Thu, 20 Apr 2017 11:56:24 +0200
From: Job Snijders <>
Cc: Hares Susan <>, "" <>
Message-ID: <>
References: <> <19878_1492639968_58F7E0E0_19878_13298_1_53C29892C857584299CBF5D05346208A31CBE742@OPEXCLILM21.corporate.adroot.infra.ftgroup> <> <8442_1492680540_58F87F5C_8442_1101_11_53C29892C857584299CBF5D05346208A31CBFD43@OPEXCLILM21.corporate.adroot.infra.ftgroup> <27506_1492681817_58F88459_27506_7804_1_0c74078d-a304-441b-9dbf-abb5d5e4eca2@OPEXCLILM5D.corporate.adroot.infra.ftgroup>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <27506_1492681817_58F88459_27506_7804_1_0c74078d-a304-441b-9dbf-abb5d5e4eca2@OPEXCLILM5D.corporate.adroot.infra.ftgroup>
X-Clacks-Overhead: GNU Terry Pratchett
User-Agent: NeoMutt/20170306 (1.8.0)
Archived-At: <>
Subject: Re: [Idr] IETF LC for IDR-ish document <draft-ietf-grow-bgp-reject-05.txt> (Default EBGP Route Propagation Behavior Without Policies) to Proposed Standard
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Inter-Domain Routing <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Thu, 20 Apr 2017 09:56:29 -0000

On Thu, Apr 20, 2017 at 09:50:13AM +0000, wrote:
>  > Can this document define what he means by "configured export
>  > policy".  Possibly by referring to standardized yang models.
> Because I think the document means "configured route
> (re)distribution/advertisement policy".  Possibly this was implied by
> the word "export" but one could read this as any outbound policy,
> while a policy setting some communities would probably not help much.

We purposefully did not specify what the contents of a policy
constitute, or whether policies should have an implicit 'accept'
terminal clause or an implicit 'deny' terminal clause.

All we try to accomplish, is that if you configure _nothing_ for an EBGP
peer, the software will not advertise any routes or use any routes which
it receives. 

Kind regards,