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Policy Group Handling and Recovery

Policy Group Handling and Recovery

While creating the tunnel, ensure all the stitched groups are created before creating the Group chain in the ingress router

A Segment Routing Tunnel maps to one or more of {Device, Collection of {forwarding port, Label Stack to be applied on the port}}. Only in Segment Stitching scenario, there can be more than one device a Tunnel maps to, in all other scenarios, Tunnel info always pushed only to ingress router.

While pushing a flow into a Segment stitched tunnel, ensure the flows are pushed to stitched routers before pushing the tunnel flows at ingress router.

Similarly, while deleting a flow to the stitched tunnel, ensure the flows are deleted Similarly, while deleting the tunnel, ensure the group is deleted at ingress router before deleting from any stitched groupsrouters.

Group Event Handling