Tunneling technique is one of the key technologies in establishing virtual private network (VPN). In thispaper, we perform a comparative research on various tunneling techniques including MPLS, IPSec, GRE, IP-in-IP,an...Tunneling technique is one of the key technologies in establishing virtual private network (VPN). In thispaper, we perform a comparative research on various tunneling techniques including MPLS, IPSec, GRE, IP-in-IP,and L2TP. We can conclude the evolutive trend of utilizing tunneling techniques in VPN by analyzing them syntheti-cally. Especially, it will probably become a key problem that guarantees the compatibility and interoperability be-tween MPLS, IPSec and L2TP.展开更多
为了降低路由的更新代价和提高路由的有效性,提出了一种用于多跳无线Adhoc网络的路由协议ASTRP(Ad hoc Subarea Tree Routing Protocol).ASTRP属于分级路由协议,通过建立分区树,在逻辑上将网络划分为多个分区,每个分区由一棵树组成.由...为了降低路由的更新代价和提高路由的有效性,提出了一种用于多跳无线Adhoc网络的路由协议ASTRP(Ad hoc Subarea Tree Routing Protocol).ASTRP属于分级路由协议,通过建立分区树,在逻辑上将网络划分为多个分区,每个分区由一棵树组成.由于分区树具有路由选择功能,所以ASTRP具有先应式路由协议和按需路由协议的功能特点.文中还给出了ASTRP的建立过程,证明了ASTRP的正确性,并对其路由存储代价和路由更新代价进行了分析.结果表明,与其它分级路由协议相比,ASTRP将节点的失效影响限定在分区以内及有限的根节点之间,其路由更新代价明显降低.展开更多
文摘Tunneling technique is one of the key technologies in establishing virtual private network (VPN). In thispaper, we perform a comparative research on various tunneling techniques including MPLS, IPSec, GRE, IP-in-IP,and L2TP. We can conclude the evolutive trend of utilizing tunneling techniques in VPN by analyzing them syntheti-cally. Especially, it will probably become a key problem that guarantees the compatibility and interoperability be-tween MPLS, IPSec and L2TP.
文摘为了降低路由的更新代价和提高路由的有效性,提出了一种用于多跳无线Adhoc网络的路由协议ASTRP(Ad hoc Subarea Tree Routing Protocol).ASTRP属于分级路由协议,通过建立分区树,在逻辑上将网络划分为多个分区,每个分区由一棵树组成.由于分区树具有路由选择功能,所以ASTRP具有先应式路由协议和按需路由协议的功能特点.文中还给出了ASTRP的建立过程,证明了ASTRP的正确性,并对其路由存储代价和路由更新代价进行了分析.结果表明,与其它分级路由协议相比,ASTRP将节点的失效影响限定在分区以内及有限的根节点之间,其路由更新代价明显降低.
