From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 2BD7F200536 for ; Thu, 9 Feb 2012 12:45:15 -0800 (PST) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1RvarX-0003s6-75 for bloat@lists.bufferbloat.net; Thu, 09 Feb 2012 21:45:08 +0100 Received: from 173-195-62.2.tel-ott.com ([173-195-62.2.tel-ott.com]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 09 Feb 2012 21:45:03 +0100 Received: from gg_wangyan by 173-195-62.2.tel-ott.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 09 Feb 2012 21:45:03 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: bloat@lists.bufferbloat.net From: Yan Wang Date: Thu, 9 Feb 2012 20:38:53 +0000 (UTC) Message-ID: References: <20110913200027.GQ28007@angus.ind.WPI.EDU> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: sea.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 173.195.62.2 (Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)) Subject: Re: [Bloat] Fwd: bridge should flood non-IPv4-multicast ethernet frames X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Feb 2012 20:45:16 -0000 Dave Taht writes: > 2. Check that the Ethertype is 0x800 (IPv4), and if it is not, always > flood the frame so we don't break non-IPv6-multicast frames being > bridged. > > 3. Do both of the above, the key point being that IPv6 multicast > frames (33:33:xx:xx:xx:xx), along with any other ethernet multicast > frames that aren't supported by the current bridge snooping code, > should always be flooded unconditionally.  IS-IS for example uses > 01:80:C2:00:00:14 and 01:80:C2:00:00:15. Hi, I applied your patch to kernel 3.2.0. The test result indicated that bridge didn't flood IPv6-multicast ethernet frames. I set up 2 UML, they can communicated via host bridge. I appiled the patch in the host. But I still can't see IPv6 multicast package coming from other UML. Thanks, Yan