Re: [trill] New Version Notification for draft-ietf-trill-centralized-replication-02.txt
Haoweiguo <haoweiguo@huawei.com> Thu, 30 April 2015 06:41 UTC
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From: Haoweiguo <haoweiguo@huawei.com>
To: "trill@ietf.org" <trill@ietf.org>
Thread-Topic: New Version Notification for draft-ietf-trill-centralized-replication-02.txt
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Date: Thu, 30 Apr 2015 06:40:52 +0000
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Cc: Sujay Gupta <sujay.gupta@ipinfusion.com>, Muhammad Durrani <mdurrani@cisco.com>, Andrew Qu <laodulaodu@gmail.com>, Liyizhou <liyizhou@huawei.com>, hantao 00223943 <billow.han@huawei.com>
Subject: Re: [trill] New Version Notification for draft-ietf-trill-centralized-replication-02.txt
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Hi Folks, A new version of "TRILL centralized replication" has been posted. Main changes: 1. Remover flow based loadbalancing among multiple centralized nodes. 2. Modify NICKFLAG RECORD format. 3. Some editorial changes. Any further comments and suggestions are appreciated. Thanks, weiguo ________________________________________ From: internet-drafts@ietf.org [internet-drafts@ietf.org] Sent: Thursday, April 30, 2015 14:36 To: Andrew Qu; Liyizhou; Muhammad Durrani; Haoweiguo; Sujay Gupta; Muhammad Durrani; hantao 00223943; hantao 00223943; Liyizhou; Andrew Qu; Sujay Gupta; Haoweiguo Subject: New Version Notification for draft-ietf-trill-centralized-replication-02.txt A new version of I-D, draft-ietf-trill-centralized-replication-02.txt has been successfully submitted by Weiguo Hao and posted to the IETF repository. Name: draft-ietf-trill-centralized-replication Revision: 02 Title: Centralized Replication for BUM traffic in active-active edge connection Document date: 2015-04-30 Group: trill Pages: 13 URL: https://www.ietf.org/internet-drafts/draft-ietf-trill-centralized-replication-02.txt Status: https://datatracker.ietf.org/doc/draft-ietf-trill-centralized-replication/ Htmlized: https://tools.ietf.org/html/draft-ietf-trill-centralized-replication-02 Diff: https:https://www.ietf.org/rfcdiff?url2=draft-ietf-trill-centralized-replication-02 Abstract: In TRILL active-active access scenario, RPF check failure issue may occur when pseudo-nickname mechanism in [TRILLPN] is used. This draft describes a solution to the RPF check failure issue through centralized replication for BUM (Broadcast, Unknown unicast, Mutlicast) traffic. The solution has all ingress RBs send BUM traffic to a centralized node via unicast TRILL encapsulation. When the centralized node receives the BUM traffic, it decapsulates the traffic and forwards the BUM traffic to all destination RBs using a distribution tree established via the TRILL base protocol. To avoid RPF check failure on a RBridge sitting between the ingress RBridge and the centralized replication node, some change of RPF calculation algorithm is required. RPF calculation on each RBridge should use the centralized node as ingress RB instead of the real ingress RBridge of RBv to perform the calculation. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat