CAJ | 학술논문

分层移动IPv6与快速切换结合具有较好的切换性能，但是链路层中断不可避免，因此有效的缓存管理机制在FHMIPv6中仍然十分重要．根据快速分层移动IPv6的特点提出了一种有效的缓存管理策略，对比快速切换协议的缓存管理机制，该策略将MAP引入到系统的缓存管理中，从而提高了整个系统的缓存利用率．用NS-2模拟表明，该策略大大降低了切换过程中的丢包率，并减少了实时应用和高优先级包的切换延迟时间．
분층이동IPv6여쾌속절환결합구유교호적절환성능，단시련로층중단불가피면，인차유효적완존관리궤제재FHMIPv6중잉연십분중요．근거쾌속분층이동IPv6적특점제출료일충유효적완존관리책략，대비쾌속절환협의적완존관리궤제，해책략장MAP인입도계통적완존관리중，종이제고료정개계통적완존이용솔．용NS-2모의표명，해책략대대강저료절환과정중적주포솔，병감소료실시응용화고우선급포적절환연지시간．
With the combination of Hierarchical Mobile IPv6 and Fast Handover mechanism, the handover latency caused by layer 3 and up can be greatly minimized. However, the handoff latency resulted from link layer handover procedure is unavoidable, so an effective cache management mechanism is still important for FHMIPv6. The paper proposes an effective scheme of cache management by FHMIPv6 pro- tocol. Compared with the cache management scheme of Fast Handover protocol, the scheme introduces MAP to the cache management, and the cache utilization is improved. Using the ns-2 simulator＇, it has demonstrated the effectiveness of our proposed scheme.