Hi,

As pointed this morning during the WG session :

-          We need to clarify (asap if possible) the boundary between this 
policy model and what should be defined in protocol models to extend the 
policy. In the current version, it looks like a mix of having part of IGP 
defined in the generic policy framework and so expecting some other extensions 
in IGP models. For BGP, all is within BGP. My proposal would be to let all the 
protocol extensions to be in protocol models, this includes :

o   Protocol specific matching

o   Protocol specific actions

o   Install-protocol identity for that protocol => so need to remove the 
existing ones for ISIS, OSPF, BGP in the current version.

-          Regarding tags, as pointed today, I would like to have "tag" to be a 
generic local identifier rather than pointing only to IS-IS and OSPF. Any route 
within a RIB may have a local tag (this local tag can be learned from the 
routing protocol or set by configuration or policy). So setting a tag does not 
refer to any igp-action.

-          Also regarding the "igp-action" container, I'm not in favor of 
having separate containers for igp-actions, bgp-actions and generic-actions. 
Two possibilities :

o   Each protocol creates a container (e.g. isis-actions, ospf-actions ...) 
which augments the action container. Isis-actions and ospf-actions may be 
different (for example in setting route-type or metric type ...)

o   Just having the "actions" container and put all the actions here whatever 
the applicable protocol.

o   Similar approach to be taken for protocol specific conditions

-          I would be in favor in adding routing table matching condition and a 
way to select also a destination routing table. E.g. , I use an import policy 
to force a routing protocol to insert routes in a specific routing table rather 
than the default one. Or I want to authorize routes from multiple routing 
tables to be exported to a particular protocol.





Best Regards,

[Orange logo]<http://www.orange.com/>

Stephane Litkowski
Network Architect
Orange/SCE/EQUANT/IBNF/ENDD/NDE
Orange Expert Future Networks
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