Subject: [alto] Ato extension for representing SDN policies

From: 郭华明 <[email-masked]>
Date: Tue, 31 Mar 2015 06:00:16 +0800 (GMT+08:00)

Hi 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.   

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Best!

Huaming Guo

China Academy of Information and Communications Technology (CAICT)