hello packet

(networking, communications)An OSPF packet sentperiodically on each network interface, real or virtual,to discover and test connections to neighbours. Hello packetsare multicast on physical networks capable of multicastingor broadcasting to enable dynamic router discovery. Theyinclude the parameters that routers connected to a commonnetwork must agree on.

Hello packets increase network resilience by, e.g., allowing arouter to establish a secondary connection when a primaryconnection fails.

单词	hello packet
释义	hello packet hello packet (networking, communications)An OSPF packet sentperiodically on each network interface, real or virtual,to discover and test connections to neighbours. Hello packetsare multicast on physical networks capable of multicastingor broadcasting to enable dynamic router discovery. Theyinclude the parameters that routers connected to a commonnetwork must agree on. Hello packets increase network resilience by, e.g., allowing arouter to establish a secondary connection when a primaryconnection fails.
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