CARP, Common Address Redundancy Protocol

CARP is the Common Address Redundancy Protocol. Its primary purpose is to allow multiple hosts on the same network segment to share an IP address. CARP is a secure, free alternative to the Virtual Router Redundancy Protocol (VRRP) and the Hot Standby Router Protocol (HSRP).

CARP works by allowing a …

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High Capacity Networking

Stacking

Stacking, use multiple devices as logically one device, gaining more bandwith and more ports.堆叠来扩展端口数和带宽

设备冗余

冗余的交换机,通过stp及相关协议来选择活动路径,并避免循环。 冗余的路由器, 通过vrrp及相关的协议来选定某个路由器。vrrp既能过提供冗余设备的failover,也能过提供load balance的效果。

网络划分

Divide and Conquer 将流量分开,比如专门的网络来负责备份,数据,应用等

就像虚拟机不能比宿主物理机大一样,虚拟的网络带宽也不能比宿主物理网络大。云计算的计算节点可以通过分布式来分散 计算任务,这对于计算量大的任务是可行的 …

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