Management (mr2) failover on 2 chassis within 5 minutes

EXCEPTION 1100, DTLB Load　
Task : ospf
Possible Stack Trace (function call return address list)
2109fff4: install_new_external_path_based_on_cost(pc)
2109f63c: calculate_routes_to_a_single_external_destination(lr)
2109f63c: calculate_routes_to_a_single_external_destination
2108787c: calculate_external_route_include_e_processing_lsa
21087a6c: update_routing_table_due_to_receipt_of_a_new_external_link_advertisement
21072bd4: install_a_new_advertisement_in_the_link_state_database
2109bc58: process_more_recent_link_state_advertisement
2109b594: process_link_state_advertisement
2109a948: process_all_advertisements_in_the_link_state_update_packet
2109a74c: ospf_ls_update_packet_received
21089d88: process_specific_packet_type
21088cc8: ospf_router_receive_packet
21057a88: ospf_msg_q_not_empty_callback
20b5582c: itc_process_msgs_internal
20b55cd8: itc_process_msgs
21056b98: ospf_task
00005e18: sys_end_task