BGP Default Policies README.md

[sachendras]

Summary

Following expectation for default-policies at the peer-group and neighbor levels for BGP

• Default import and export policies are expected to be functional for both IBGP and EBGP peers when policy definition in the policy chain is not satisfied.
• For IBGP and EBGP peers, when no policy is attached, actions defined in the default-policy (when one exists) should apply.
• For IBGP peers when no policy is attached including the default-policy, default should be import and export all BGP routes.
• For EBGP peers when no policy is attached includign the default-policy, default should be to disallow import and export of all BGP routes.
• In all the above cases, BGP default-policy is applicable only to the BGP learnt routes or the routes that are redistributed in to BGP from other protocols. Import/Export of routes from other protocols should be governed by their respective policies and should not either be exported or imported based on the actions of the BGP default-policy.

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Pull Request Test Coverage Report for Build 6590342051

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• Overall coverage remained the same at 46.333%

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Change from base Build 6581405337:	0.0%
Covered Lines:	1409
Relevant Lines:	3041

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