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BGP crashes when VRFs are added deleted via config/rollback/commit-replace etc. i.e., import/export policy provides duplicate RT entries.
Create a new vrf and apply it to an interface running with an existing vrf. The condition is that RTs are exported via "route-policy" from one VRF and are imported into another VRF via "route-policy". Then this bug triggers.
If customer can remove import/export RT dependency between VRFs (For example if RTs exported by one VRFs are used as import into another via import/export route-policy statements, then remove that config), then this issue can be avoided. If the import/export RT dependency between VRFs must be configured, then it can be done via direct import/export statements instead of via route-policy/prefix-set, to avoid this problem.
Good to have BGP side fix too, which is handled under CSCus44940.
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