From mboxrd@z Thu Jan 1 00:00:00 1970 From: ANNIE LI Subject: Re: Is 802.1p surpported by xen? Date: Wed, 08 Apr 2009 12:32:05 +0800 Message-ID: <49DC28C5.1060308@oracle.com> References: <49DB0C33.1040702@oracle.com> <49DC0B81.9020809@oracle.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1040049883==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: James Harper Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org This is a multi-part message in MIME format. --===============1040049883== Content-Type: multipart/alternative; boundary="------------070606080808050900060104" This is a multi-part message in MIME format. --------------070606080808050900060104 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit James Harper wrote: > > Just what it says. 802.1P just assigns a vague meaning to the priority field bits, it doesn't say what you should do with them in terms if 'sticking them' in the packet. 802.1Q (vlan trunking) includes 3 bits to stick the priority field into. > > http://en.wikipedia.org/wiki/802.1q is a good high level overview of what is required. Thanks. I see. NDIS_NET_BUFFER_LIST_8021Q_INFO contains info about 802.1Q, i need to insert 802.1Q tag in the frame before transmitting it to the backend, then strips the tag after receiving those packets. I will add those process and have a test. Thanks Annie. --------------070606080808050900060104 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit
James Harper wrote: 

Just what it says. 802.1P just assigns a vague meaning to the priority field bits, it doesn't say what you should do with them in terms if 'sticking them' in the packet. 802.1Q (vlan trunking) includes 3 bits to stick the priority field into.

http://en.wikipedia.org/wiki/802.1q is a good high level overview of what is required.
Thanks. I see.
NDIS_NET_BUFFER_LIST_8021Q_INFO contains info about 802.1Q, i need to insert 802.1Q tag in the frame before transmitting it to the backend, then strips the tag after receiving those packets. I will add those process and have a test.

Thanks
Annie.

--------------070606080808050900060104-- --===============1040049883== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel --===============1040049883==--