Màscara de xarxa calclulator

Network mask calculator is a network service used to calculate network mask by subnet range. A subnet mask is a mechanism used to split a network into subnetworks; it can be used to reduce the traffic on each subnetwork by confining traffic to only the subnetwork(s) for which it is intended, thereby eliminating issues of associated congestion on other subnetwork(s) i reduir la congestió en la xarxa com un tot. Cada subxarxa que funciona com si fos independent, mantenir el trànsit local i de desviament de trànsit a un altre subnetwork només si l'adreça de les dades és extern a la subnetwork.

Subnetting una xarxa IP permet el flux de trànsit de la xarxa per ser segregat basat en una configuració de la xarxa. Que, essencialment, organitza l'acull en grups lògics, i proporciona per millorar la seguretat de la xarxa i rendiment. The most common reason for subnetting IP networks is to control network traffic.

Traditionally, in an Ethernet network, it is very common for all nodes on a segment to see all the packets transmitted by all the other nodes on that segment, which introduces collisions, and the resulting retransmissions under heavy traffic loads. For additional information on subnetting, see RFC 1817, and RFC 1812.

Calculator calculate the subnet mask to use, given a TCP/IP network address and the number of subnets or nodes per subnet required. To create the subnet mask, first remember that the purpose of the subnet mask is to separate the (32 bit) ip address into the network prefix and the host number. If a bit in the subnet mask is 1, the corresponding bit in the IP address is part of the network address; if the bit in the subnet mask is 0, the corresponding bit in the IP address is part of the host address.


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