TOI Author :: Anmol Mani Tejeswar Sarma

Dynamic resizing of nexthop groups, allows a nexthop group to adjust its size in the hardware based on tunnel resolution. When there is a change in tunnel resolution, the hardware is automatically programmed with only those entries that are fully resolved. However, if the tunnel endpoint corresponding to a nexthop group entry becomes unreachable, the entry remains in use and any traffic destined for the endpoint gets blackholed.