Dell - Internal Use - Confidential Hi Chen, Please see response below.
Thanks Ashok D From: chenyq [mailto:che...@centecnetworks.com] Sent: Friday, June 12, 2015 5:10 PM To: Daparthi, Ashok; opencompute-networking@lists.opencompute.org Subject: 答复: [Opencompute-networking] SAI - QOS API for review Hi Ashok D These QOS proposals are good material to understand QOS model. I want to discuss these topics with you. (1) About QOS MAP module, about “sai_cos_port_trust_t”. I want to know the behavior of “SAI_COS_PORT_TRUST_NONE”, is it means that the TC will be output from port? If not, I require a option “SAI_COS_PORT_TRUST_PORT“ from which we can configure TC on port for packets. <Ashok D> Default some TC should get for packets to take default queue. We had attribute called SAI_PORT_ATTR_DEFAYLT_TC. This will be taken in default case. We do not need to add new options. And also in my proposal I removed the SAI_COS_PORT_TRUST_*. I hope you are looking at headers in below link. (2) About POLICER module, I notice that it remark as RFC 2698 for “SAI_POLICER_MODE_Tr_TCM”. It is better to update it to RFC 4115. <Ashok D> I will check and get back on this. (3) Another question is about WRED. If I configure “SAI_QOS_QUEUE_ATTR_DROP_TYPE” as “SAI_QOS_DROP_TYPE_TAIL”, how can I Configure the parameters for TD. It is easy to reuse WRED profile to describe the configuration for TD. But we need explain how to use it. <Ashok D> Tail drop thresholds are defined by QOS buffer profiles. Once buffer limit reaches tail drop will happen. Any discussion are welcome <Ashok D> Let me know any more information, We can discuss offline or over call. Thanks Chen 发件人: opencompute-networking-boun...@lists.opencompute.org<mailto:opencompute-networking-boun...@lists.opencompute.org> [mailto:opencompute-networking-boun...@lists.opencompute.org] 代表 ashok_dapar...@dell.com<mailto:ashok_dapar...@dell.com> 发送时间: 2015年6月12日 0:29 收件人: opencompute-networking@lists.opencompute.org<mailto:opencompute-networking@lists.opencompute.org> 主题: Re: [Opencompute-networking] SAI - QOS API for review Hi, Please Let us know feedback, We are going to merge integrate proposals soon. Thanks Ashok D From: Daparthi, Ashok Sent: Thursday, May 14, 2015 8:45 PM To: opencompute-networking@lists.opencompute.org<mailto:opencompute-networking@lists.opencompute.org> Subject: SAI - QOS API for review Hi, Please review the Qos API proposals. The docs and headers are shared in below links. This Proposals cover - Policer - WRED - Qos maps - Queue - Scheduler - Scheduler groups (hierarchy) https://github.com/opencomputeproject/OCP-Networking-Project-Community-Contributions/tree/master/sai/doc/QOS https://github.com/opencomputeproject/OCP-Networking-Project-Community-Contributions/pull/81 Thanks, Ashok D
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