Hi Guohai,
I think your example is good, it's my opinion that more meaningful policies are
helpful for traffic optimization.
-----原始邮件-----
发件人:ChenGuohai <[email protected]>
发送时间:2015-04-08 21:18:44 (星期三)
收件人: "郭华明" <[email protected]>, "Richard Yang Y." <[email protected]>
抄送: "[email protected]" <[email protected]>
主题: RE: [alto] Ato extension for representing SDN policies
Hi Huaming,All
Getting policy rules does benefit to traffic optimization. In addition to that
it can reduce ALTO request and response.
For example, a policy is that band between a pair of src(A)and dst is 20M
between 11:00 to 14:00 and is 10M for other time. And band between other
src(B,C,D ....) and this dst is 15M. The ALTO client can use this policy in
selecting more optimal peers without sending ATLO cost map request to ALTO
server now and then.
ALTO client select src(A) as the peer between 11:00 to 14:00 and one of
src(B,C,D....) at other time.
Make sense?
BR
Guohai
Date: Tue, 31 Mar 2015 04:23:49 +0800
From: [email protected]
To: [email protected]
CC: [email protected]
Subject: [alto] Ato extension for representing SDN policies
Hi Richard, All
In SDN, each pair of source and destination network could have multiple policy
rules. These rules maybe include source/destination address, protocols, ports,
QoS, actions and so on. These information is
also important attributes of the path.
I am thinking that if some policy information could be provided for
applications in Alto, this is also helpful for traffic optimization.
I think there are two methods to do that in Alto.
1, Use a multiple cost types in Cost Maps (similar ideas in
draft-randriamasy-alto-multi-cost-10), add a new Cost Mode: policy, the Cost
Metric use multiple fields, like <Protocol, Port, QoS>, to represent a policy.
2, Add a new map service, like Policy Maps Service. In Policy Maps,
applications can get the policy rule information.
Thanks.
--
----------------
Best!
Huaming Guo
China Academy of Information and Communications Technology (CAICT)
_______________________________________________ alto mailing list [email protected]
https://www.ietf.org/mailman/listinfo/alto
--
----------------
Best!
Huaming Guo
China Academy of Information and Communications Technology (CAICT)
_______________________________________________
alto mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/alto
