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Technical Issues Tunnel Interface Flapping If tunnel goes up and down every time the MR moves, the amount of interface changes can overload the HA and result in high level of instability in the entire network Resolved A tunnel interface is consistently assigned to each Mobile Router as long as it has a valid binding cache at the Home Agent Every time the Mobile Router moves and updates the binding cache entry, the bi-directional tunnel should not be torn down and setup again. The tunnel end points should be updated dynamically with the Mobile Router's current care-of address. Hello Packet processing Bi-directional tunnel treated as OSPF on-demand circuits (RFC 1793) |